subject:(Acoustics)

University of Georgia

1. Mora, Christian R. Rapid techniques for screening wood properties in forest plantations.

Degree: PhD, Forest Resources, 2009, University of Georgia

URL: http://purl.galileo.usg.edu/uga_etd/mora_christian_r_200905_phd

► The use of three nondestructive techniques (NDT) for the assessment of wood properties in forest plantations: i) acoustics; ii) near infrared (NIR) spectroscopy; and iii)… (more)

▼ The use of three nondestructive techniques (NDT) for the assessment of wood properties in forest plantations: i) acoustics; ii) near infrared (NIR) spectroscopy; and iii) SilviScan, was studied. In this dissertation, a major focus was given to aspects related to the development of NIR calibration models using SilviScan data. The utilization of acoustics in Pinus taeda plantations was useful for the classification of trees based on wood stiffness. NDT values compared well to those obtained from traditional laboratory tests after accounting for differences in moisture content and the type of acoustic waves employed. For NIR modeling, using pulp yield data from Eucalyptus nitens trees, it was found that models fitted with a reduced number of selected samples showed similar performance compared to a regression fitted using all samples. Selection of samples based on NIR spectra was as successful as selection based on pulp yields. The partial least squares (PLS) algorithm was modified allowing incorporation of grouped data. It was shown that repeated measurements of wood strips could induce autocorrelation in the PLS residuals. Models fitted using the modified approach showed that the serial correlation can be completely removed; however the strength of the autocorrelation will determine whether PLS or its modified version is preferable. Net analyte signal and figures of merit were introduced to help interpreting the effects of different pre-processing techniques on the NIR data. Sensitivity, selectivity, and signal-to-noise ratio proved to be more useful statistics than R2, RMSECV, and RMSEP for this objective. Two approaches based on randomization tests were proposed for determining the dimensionality of principal component (PCA) and PLS models. Compared to these tests, it was found that cross-validation can lead, in some situations, to model underfitting. Alternatively, the development of nonlinear NIR calibrations based on kernel methods showed that some problems detected with PLS were due to nonlinearities in the properties. Kernel regressions were able to model better these properties, improving their predictive ability compared to PLS. Finally, the use of NIR values as control points for spatial interpolation was demonstrated by generating within-tree maps showing the variation of density and microfibril angle in P. taeda trees. Advisors/Committee Members: Laurence Schimleck.

Subjects/Keywords: Acoustics

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APA (6^th Edition):

Mora, C. R. (2009). Rapid techniques for screening wood properties in forest plantations. (Doctoral Dissertation). University of Georgia. Retrieved from http://purl.galileo.usg.edu/uga_etd/mora_christian_r_200905_phd

Chicago Manual of Style (16^th Edition):

Mora, Christian R. “Rapid techniques for screening wood properties in forest plantations.” 2009. Doctoral Dissertation, University of Georgia. Accessed March 23, 2019. http://purl.galileo.usg.edu/uga_etd/mora_christian_r_200905_phd.

MLA Handbook (7^th Edition):

Mora, Christian R. “Rapid techniques for screening wood properties in forest plantations.” 2009. Web. 23 Mar 2019.

Vancouver:

Mora CR. Rapid techniques for screening wood properties in forest plantations. [Internet] [Doctoral dissertation]. University of Georgia; 2009. [cited 2019 Mar 23]. Available from: http://purl.galileo.usg.edu/uga_etd/mora_christian_r_200905_phd.

Council of Science Editors:

Mora CR. Rapid techniques for screening wood properties in forest plantations. [Doctoral Dissertation]. University of Georgia; 2009. Available from: http://purl.galileo.usg.edu/uga_etd/mora_christian_r_200905_phd

2. O'Connor, Caleb S. Measurement of Dispersion and Attenuation in Granular Media using a Filter-Correlation Method.

Degree: 2015, University of Louisiana at Lafayette

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=1592420

► A wideband technique for measuring sound dispersion and frequency-dependent attenuation in granular media is presented. The measurements were done on a mono-disperse medium of… (more)

Subjects/Keywords: Acoustics

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APA (6^th Edition):

O'Connor, C. S. (2015). Measurement of Dispersion and Attenuation in Granular Media using a Filter-Correlation Method. (Thesis). University of Louisiana at Lafayette. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=1592420

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

O'Connor, Caleb S. “Measurement of Dispersion and Attenuation in Granular Media using a Filter-Correlation Method.” 2015. Thesis, University of Louisiana at Lafayette. Accessed March 23, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=1592420.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

O'Connor, Caleb S. “Measurement of Dispersion and Attenuation in Granular Media using a Filter-Correlation Method.” 2015. Web. 23 Mar 2019.

Vancouver:

O'Connor CS. Measurement of Dispersion and Attenuation in Granular Media using a Filter-Correlation Method. [Internet] [Thesis]. University of Louisiana at Lafayette; 2015. [cited 2019 Mar 23]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=1592420.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

O'Connor CS. Measurement of Dispersion and Attenuation in Granular Media using a Filter-Correlation Method. [Thesis]. University of Louisiana at Lafayette; 2015. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=1592420

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Cincinnati

3. Matsumura, Yuya. Four research topics on new acoustic liner concepts and modal propagation measurement.

Degree: MS, Engineering : Aerospace Engineering, 2008, University of Cincinnati

URL: http://rave.ohiolink.edu/etdc/view?acc_num=ucin1212076970

► Four different studies of acoustic liners and measurement techniques are presented in this thesis. The titles of these investigations are as follows: The possible… (more)

▼ Four different studies of acoustic liners and measurement techniques are presented in this thesis. The titles of these investigations are as follows: The possible use of bulk absorbers in engine nacelle liners The effect of transwall sound propagation in the honeycomb core of an acoustic liner The potential of piezzo-electric actuators to control the impedance of single layer liners The development of the multi modal acoustic measurement technique in the flow duct A wide range of previously published work on physical and prediction models for bulk absorbers was studied. An empirical correlation of the impedance established by M. E. Delany and E. N. Bazley was chosen for the impedance computation. With this method, the impedance of bulk absorbers was computed with several configurations. Then, the sound suppression data for bulk absorbers in a fan-exhaust duct of a high bypass turbofan engine were calculated and compared to the corresponding suppression data for conventional liners. New liner samples were designed and fabricated to investigate the effects of the transwall sound propagation in the honeycomb core of a single layer acoustic liner. A method for impedance measurement with grazing incident sound was specifically developed for this investigation. This method is based on the two-dimensional wave propagation theory. Experiments were conducted to observe the validity of the new measurement method. The potential use of a piezzo-electric actuator device for active control of the acoustic impedance of a single layer acoustic liner was also studied. The absorption coefficient of the device was measured in the wave tube with phase differences between the incident sound and the device excitation signal. Results showed that the absorption coefficient could be improved by adjusting the phase and the amplitude of the excitation signal for the piezoelectric actuator. Finally, a multi modal measurement technique with 16 transducers was developed. This technique will be used for acoustic measurements in a flow duct apparatus. The method was tested in a prototype duct which had the same cross section as the flow duct. The sudden change of the energy flux at cut-on frequency and the energy reduction by the sound absorber were observed. As these results agreed with what was expected from theory, it was concluded that the method was properly established.

Subjects/Keywords: Acoustics

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APA (6^th Edition):

Matsumura, Y. (2008). Four research topics on new acoustic liner concepts and modal propagation measurement. (Masters Thesis). University of Cincinnati. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=ucin1212076970

Chicago Manual of Style (16^th Edition):

Matsumura, Yuya. “Four research topics on new acoustic liner concepts and modal propagation measurement.” 2008. Masters Thesis, University of Cincinnati. Accessed March 23, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1212076970.

MLA Handbook (7^th Edition):

Matsumura, Yuya. “Four research topics on new acoustic liner concepts and modal propagation measurement.” 2008. Web. 23 Mar 2019.

Vancouver:

Matsumura Y. Four research topics on new acoustic liner concepts and modal propagation measurement. [Internet] [Masters thesis]. University of Cincinnati; 2008. [cited 2019 Mar 23]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ucin1212076970.

Council of Science Editors:

Matsumura Y. Four research topics on new acoustic liner concepts and modal propagation measurement. [Masters Thesis]. University of Cincinnati; 2008. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ucin1212076970

University of California – Santa Cruz

4. Cunningham, Kane Alexander. Pinniped hearing in a changing acoustic environment.

Degree: Ocean Sciences, 2015, University of California – Santa Cruz

URL: http://www.escholarship.org/uc/item/737223k8

► Increasing levels of anthropogenic noise in the world’s oceans are a matter of concern for the conservation of pinnipeds (seals, sea lions, and walruses). Sound… (more)

▼ Increasing levels of anthropogenic noise in the world’s oceans are a matter of concern for the conservation of pinnipeds (seals, sea lions, and walruses). Sound from noise-generating human activities—such as marine construction, oil exploration, and shipping traffic—may alter the lives of pinnipeds in a variety of ways. For example, anthropogenic noise can interfere with an individual’s ability to detect calls from conspecifics or the sound of an approaching predator; and loud, aversive sounds can cause animals to abandon preferred habitats. Laboratory studies of hearing in pinnipeds over the past 50 years have expanded knowledge of the basic auditory capabilities of certain species, and data from these studies are currently being used to predict how specific noise-generating activities may affect wild animals. However, predicting the effects of anthropogenic noise is a complex process, and certain knowledge gaps must be addressed before accurate predictions can be made. First, it is unclear how well standard hearing data—which are generated using simple, synthetic sounds—can predict pinniped auditory sensitivity to spectrally and temporally complex anthropogenic sounds. Second, hearing sensitivity data above 80 kHz are scarce for most species, which is problematic given the recent proliferation of high-frequency, high-energy acoustic marine technologies such as commercial sonar and recreational fish finders. The research described in this dissertation addresses these two knowledge gaps using behavioral hearing experiments with trained pinniped subjects combined with mathematical models of hearing and sound propagation. The data presented here improve the ability of regulators to predict the effects of anthropogenic noise on pinnipeds and indicate future research directions. The reported sensitivity data for complex sounds show that certain spectral and temporal features can significantly alter detectability. Comparison of detection thresholds for complex stimuli to predictions from hearing models based on standard hearing metrics showed differences of up to 8 dB in both quiet and noisy conditions. Such discrepancies indicate the need for future research into how complex features influence the detectability of underwater sound. High-frequency sensitivity data for two seals and one sea lion show that these animals can detect underwater sound at frequencies well above their traditional high-frequency hearing limits, with all three subjects able to detect tonal signals centered at 180 kHz. The shapes of the sensitivity profiles for all subjects indicate that the idea of a traditional high-frequency hearing limit is problematic for underwater pinniped listeners, a fact that regulators must take into account.

Subjects/Keywords: Acoustics

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APA (6^th Edition):

Cunningham, K. A. (2015). Pinniped hearing in a changing acoustic environment. (Thesis). University of California – Santa Cruz. Retrieved from http://www.escholarship.org/uc/item/737223k8

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Cunningham, Kane Alexander. “Pinniped hearing in a changing acoustic environment.” 2015. Thesis, University of California – Santa Cruz. Accessed March 23, 2019. http://www.escholarship.org/uc/item/737223k8.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Cunningham, Kane Alexander. “Pinniped hearing in a changing acoustic environment.” 2015. Web. 23 Mar 2019.

Vancouver:

Cunningham KA. Pinniped hearing in a changing acoustic environment. [Internet] [Thesis]. University of California – Santa Cruz; 2015. [cited 2019 Mar 23]. Available from: http://www.escholarship.org/uc/item/737223k8.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Cunningham KA. Pinniped hearing in a changing acoustic environment. [Thesis]. University of California – Santa Cruz; 2015. Available from: http://www.escholarship.org/uc/item/737223k8

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of California – San Diego

5. Cho, Chomgun. Robust source localization using the generalized array invariant and a vertical array.

Degree: Oceanography, 2017, University of California – San Diego

URL: http://www.escholarship.org/uc/item/8xn522x3

► The array invariant approach for passive localization utilizes multiple arrivals separated in beam angle and travel time via conventional plane-wave beamforming using either a horizontal… (more)

▼ The array invariant approach for passive localization utilizes multiple arrivals separated in beam angle and travel time via conventional plane-wave beamforming using either a horizontal or vertical array in shallow-water. Since this approach does not require precise knowledge of the environment and an acoustic propagation model, it is robust to environmental fluctuations. In addition, the approach is essentially equivalent to the waveguide invariant β based on the dispersion relationship between the group and phase speeds when β = 1, a generic value in ideal waveguides. However, the array invariant can be applicable to many shallow-water environments where the surface-bottom reflected arrivals behave similarly to those in ideal waveguides, simply using β = 1. By incorporating the waveguide invariant, the array invariant can be extended to general waveguides, referred to as generalized array invariant that is fully supported by the waveguide invariant physics. This dissertation presents the relationship between the waveguide invariant and array invariant, demonstrations with several experimental data using the generalized array invariant with a short- or long-aperture vertical array, and an impact of array tilt on the array invariant-based source-range estimation.• HF97 (High Frequency 1997) experiment: Demonstration of the robustness of source-range estimation using a 12-m vertical array for a source (2–3 kHz) at 6-km range in ∼100-m deep water in a fluctuating ocean environment over a day.• RADAR07 (Random Array of Drifting Acoustic Receivers 2007) experiment: Range-dependent environment with a sloping bottom using a 2.8-m vertical array for a moving source (2–3.5 kHz) between 0.5 and 5 km in range with the water depth varying from 80 to 50 m.• SAVEX15 (Shallow-water Acoustic Variability EXperiment 2015) experiment: Range-independent environment using a large-aperture (about 56 m) sparse vertical array for a moving source (0.5–2 kHz) between 1.5 and 3.5 km in range in ∼100-m deep water.• KAM11 (The Kauai Acomms MURI 2011) experiment: Impact of array tilt on source range using a 1.2-m vertical array for a moored source (7–19 kHz) at 3-km range in ∼100-m deep water.

Subjects/Keywords: Acoustics

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APA (6^th Edition):

Cho, C. (2017). Robust source localization using the generalized array invariant and a vertical array. (Thesis). University of California – San Diego. Retrieved from http://www.escholarship.org/uc/item/8xn522x3

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Cho, Chomgun. “Robust source localization using the generalized array invariant and a vertical array.” 2017. Thesis, University of California – San Diego. Accessed March 23, 2019. http://www.escholarship.org/uc/item/8xn522x3.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Cho, Chomgun. “Robust source localization using the generalized array invariant and a vertical array.” 2017. Web. 23 Mar 2019.

Vancouver:

Cho C. Robust source localization using the generalized array invariant and a vertical array. [Internet] [Thesis]. University of California – San Diego; 2017. [cited 2019 Mar 23]. Available from: http://www.escholarship.org/uc/item/8xn522x3.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Cho C. Robust source localization using the generalized array invariant and a vertical array. [Thesis]. University of California – San Diego; 2017. Available from: http://www.escholarship.org/uc/item/8xn522x3

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

6. Johnson, Benjamin. The Ultrasonic Characterization of Shear Thickening Suspensions.

Degree: PhD, Physics, 2012, Washington University in St. Louis

URL: https://openscholarship.wustl.edu/etd/700

► This dissertation describes the characterization of an inherently inhomogeneous medium capable of shear thickening. An aqueous suspension of cornstarch represents an important exemplar of such… (more)

Subjects/Keywords: Acoustics

11 more images…

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APA (6^th Edition):

Johnson, B. (2012). The Ultrasonic Characterization of Shear Thickening Suspensions. (Doctoral Dissertation). Washington University in St. Louis. Retrieved from https://openscholarship.wustl.edu/etd/700

Chicago Manual of Style (16^th Edition):

Johnson, Benjamin. “The Ultrasonic Characterization of Shear Thickening Suspensions.” 2012. Doctoral Dissertation, Washington University in St. Louis. Accessed March 23, 2019. https://openscholarship.wustl.edu/etd/700.

MLA Handbook (7^th Edition):

Johnson, Benjamin. “The Ultrasonic Characterization of Shear Thickening Suspensions.” 2012. Web. 23 Mar 2019.

Vancouver:

Johnson B. The Ultrasonic Characterization of Shear Thickening Suspensions. [Internet] [Doctoral dissertation]. Washington University in St. Louis; 2012. [cited 2019 Mar 23]. Available from: https://openscholarship.wustl.edu/etd/700.

Council of Science Editors:

Johnson B. The Ultrasonic Characterization of Shear Thickening Suspensions. [Doctoral Dissertation]. Washington University in St. Louis; 2012. Available from: https://openscholarship.wustl.edu/etd/700

7. Weidner, Elizabeth Frances. A wideband acoustic method for direct assessment of bubble-mediated methane flux.

Degree: MS, 2018, University of New Hampshire

URL: https://scholars.unh.edu/thesis/1177

► The bubble-mediated transport and eventual fate of methane escaping from the seafloor is of great interest to researchers in many fields. Acoustic systems are frequently… (more)

Subjects/Keywords: Acoustics

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APA (6^th Edition):

Weidner, E. F. (2018). A wideband acoustic method for direct assessment of bubble-mediated methane flux. (Thesis). University of New Hampshire. Retrieved from https://scholars.unh.edu/thesis/1177

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Weidner, Elizabeth Frances. “A wideband acoustic method for direct assessment of bubble-mediated methane flux.” 2018. Thesis, University of New Hampshire. Accessed March 23, 2019. https://scholars.unh.edu/thesis/1177.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Weidner, Elizabeth Frances. “A wideband acoustic method for direct assessment of bubble-mediated methane flux.” 2018. Web. 23 Mar 2019.

Vancouver:

Weidner EF. A wideband acoustic method for direct assessment of bubble-mediated methane flux. [Internet] [Thesis]. University of New Hampshire; 2018. [cited 2019 Mar 23]. Available from: https://scholars.unh.edu/thesis/1177.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Weidner EF. A wideband acoustic method for direct assessment of bubble-mediated methane flux. [Thesis]. University of New Hampshire; 2018. Available from: https://scholars.unh.edu/thesis/1177

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Boston University

8. Bogdan, Caitlin. Acoustically driven control of mobile robots for source localization in complex ocean environments.

Degree: PhD, Mechanical Engineering, 2018, Boston University

URL: http://hdl.handle.net/2144/30725

► Ocean based robotic systems are an opportunity to combine the power of acoustic sensing in the water with sophisticated control schemes. Together these bodies of… (more)

▼ Ocean based robotic systems are an opportunity to combine the power of acoustic sensing in the water with sophisticated control schemes. Together these bodies of knowledge could create autonomous systems for mapping acoustic fields and localizing underwater sources. However, existing control schemes have often been designed for land and air robots. This creates challenges for applying these algorithms to complex ocean environments. Acoustic fields are strongly frequency dependent, can rarely be realistically modeled analytically, have complex contours where the feature of interest is not always located at the peak pressure, and include many sources of background noise. This work addresses these challenges for control schemes from three categories: feedback and observer control, gradient ascent control and optimal control. In each case the challenges of applying the control scheme to an acoustic field are enumerated and addressed to create a suite of acoustically driven control schemes. For many of these algorithms, the largest issue is the processing and collection of acoustic data, particularly in the face of noise. Two new methods are developed to solve this issue. The first is the use of Principal Component Analysis as a noise filter for acoustic signals, which is shown to address particularly high levels of noise, while providing the frequency dependent sound pressure levels necessary for subsequent processing. The second method addresses the challenge that an analytical expression of the pressure field is often lacking, due to uncertainties and complexities in the environmental parameters. Basis functions are used to address this. Several candidates are considered, but Legendre polynomials are selected for their low error and reasonable processing time. Additionally, a method of intermediate points is used to approximate high frequency pressure fields with low numbers of collected data points. Following this work, the individual control schemes are explored. A method of observer feedback control is proposed to localize sources by linearizing the acoustic fields. A gradient ascent method for localizing sources in real time is proposed which uses Matched Field Processing and Bayesian filters. These modifications allow the gradient ascent algorithm to be compatible with complex acoustic fields. Finally, an optimal control method is proposed using Pontryagin's Maximum Principle to derive trajectories in real time that balance information gain with control energy. This method is shown to efficiently map an acoustic field, either for optimal sensor placement or to localize sources. The contribution of this work is a new collection of control schemes that use acoustic data to localize acoustically complex sources in a realistic noisy environment, and an understanding of the tradeoffs inherent in applying each of these to the acoustic domain. Advisors/Committee Members: McDaniel, J. Gregory (advisor).

Subjects/Keywords: Acoustics

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APA (6^th Edition):

Bogdan, C. (2018). Acoustically driven control of mobile robots for source localization in complex ocean environments. (Doctoral Dissertation). Boston University. Retrieved from http://hdl.handle.net/2144/30725

Chicago Manual of Style (16^th Edition):

Bogdan, Caitlin. “Acoustically driven control of mobile robots for source localization in complex ocean environments.” 2018. Doctoral Dissertation, Boston University. Accessed March 23, 2019. http://hdl.handle.net/2144/30725.

MLA Handbook (7^th Edition):

Bogdan, Caitlin. “Acoustically driven control of mobile robots for source localization in complex ocean environments.” 2018. Web. 23 Mar 2019.

Vancouver:

Bogdan C. Acoustically driven control of mobile robots for source localization in complex ocean environments. [Internet] [Doctoral dissertation]. Boston University; 2018. [cited 2019 Mar 23]. Available from: http://hdl.handle.net/2144/30725.

Council of Science Editors:

Bogdan C. Acoustically driven control of mobile robots for source localization in complex ocean environments. [Doctoral Dissertation]. Boston University; 2018. Available from: http://hdl.handle.net/2144/30725

Boston University

9. Mi, Jing. Acoustic source separation based on target equalization-cancellation.

Degree: PhD, Biomedical Engineering, 2018, Boston University

URL: http://hdl.handle.net/2144/27449

► Normal-hearing listeners are good at focusing on the target talker while ignoring the interferers in a multi-talker environment. Therefore, efforts have been devoted to build… (more)

Subjects/Keywords: Acoustics

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APA (6^th Edition):

Mi, J. (2018). Acoustic source separation based on target equalization-cancellation. (Doctoral Dissertation). Boston University. Retrieved from http://hdl.handle.net/2144/27449

Chicago Manual of Style (16^th Edition):

Mi, Jing. “Acoustic source separation based on target equalization-cancellation.” 2018. Doctoral Dissertation, Boston University. Accessed March 23, 2019. http://hdl.handle.net/2144/27449.

MLA Handbook (7^th Edition):

Mi, Jing. “Acoustic source separation based on target equalization-cancellation.” 2018. Web. 23 Mar 2019.

Vancouver:

Mi J. Acoustic source separation based on target equalization-cancellation. [Internet] [Doctoral dissertation]. Boston University; 2018. [cited 2019 Mar 23]. Available from: http://hdl.handle.net/2144/27449.

Council of Science Editors:

Mi J. Acoustic source separation based on target equalization-cancellation. [Doctoral Dissertation]. Boston University; 2018. Available from: http://hdl.handle.net/2144/27449

University of Manchester

10. Rowley, William. MATHEMATICAL MODELLING OF NOVEL METAMATERIALS FOR NOISE REDUCTION APPLICATIONS.

Degree: 2018, University of Manchester

URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:317247

► In this thesis we investigate acoustic metamaterials and how they can influence incident sound waves. Specifically we are interested in the mathematical technique of transformation… (more)

Subjects/Keywords: Metamaterials; Acoustics; Transformation acoustics; Homogenisation

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APA (6^th Edition):

Rowley, W. (2018). MATHEMATICAL MODELLING OF NOVEL METAMATERIALS FOR NOISE REDUCTION APPLICATIONS. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:317247

Chicago Manual of Style (16^th Edition):

Rowley, William. “MATHEMATICAL MODELLING OF NOVEL METAMATERIALS FOR NOISE REDUCTION APPLICATIONS.” 2018. Doctoral Dissertation, University of Manchester. Accessed March 23, 2019. http://www.manchester.ac.uk/escholar/uk-ac-man-scw:317247.

MLA Handbook (7^th Edition):

Rowley, William. “MATHEMATICAL MODELLING OF NOVEL METAMATERIALS FOR NOISE REDUCTION APPLICATIONS.” 2018. Web. 23 Mar 2019.

Vancouver:

Rowley W. MATHEMATICAL MODELLING OF NOVEL METAMATERIALS FOR NOISE REDUCTION APPLICATIONS. [Internet] [Doctoral dissertation]. University of Manchester; 2018. [cited 2019 Mar 23]. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:317247.

Council of Science Editors:

Rowley W. MATHEMATICAL MODELLING OF NOVEL METAMATERIALS FOR NOISE REDUCTION APPLICATIONS. [Doctoral Dissertation]. University of Manchester; 2018. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:317247

11. Lubrick, Mark. Real Time Physical Analysis of Consolidation Process for Low Pressure Gas Dynamic Spray.

Degree: MS, Physics, 2009, National Library of Canada

URL: http://scholar.uwindsor.ca/etd/375

► The gas dynamic spray process is studied via acoustic methods with the main focus being on developing an online system to monitor the process as… (more)

Subjects/Keywords: Physics; Acoustics.

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APA (6^th Edition):

Lubrick, M. (2009). Real Time Physical Analysis of Consolidation Process for Low Pressure Gas Dynamic Spray. (Masters Thesis). National Library of Canada. Retrieved from http://scholar.uwindsor.ca/etd/375

Chicago Manual of Style (16^th Edition):

Lubrick, Mark. “Real Time Physical Analysis of Consolidation Process for Low Pressure Gas Dynamic Spray.” 2009. Masters Thesis, National Library of Canada. Accessed March 23, 2019. http://scholar.uwindsor.ca/etd/375.

MLA Handbook (7^th Edition):

Lubrick, Mark. “Real Time Physical Analysis of Consolidation Process for Low Pressure Gas Dynamic Spray.” 2009. Web. 23 Mar 2019.

Vancouver:

Lubrick M. Real Time Physical Analysis of Consolidation Process for Low Pressure Gas Dynamic Spray. [Internet] [Masters thesis]. National Library of Canada; 2009. [cited 2019 Mar 23]. Available from: http://scholar.uwindsor.ca/etd/375.

Council of Science Editors:

Lubrick M. Real Time Physical Analysis of Consolidation Process for Low Pressure Gas Dynamic Spray. [Masters Thesis]. National Library of Canada; 2009. Available from: http://scholar.uwindsor.ca/etd/375

Texas A&M University

12. Kanakri, Shireen M. The Impact of Acoustical Environmental Design on Children with Autsim.

Degree: 2014, Texas A&M University

URL: http://hdl.handle.net/1969.1/152667

► In recent years, research has shown that the educational environment has a profound effect on learning and performance among students, especially those with autism. Many… (more)

Subjects/Keywords: Autism; Acoustics

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APA (6^th Edition):

Kanakri, S. M. (2014). The Impact of Acoustical Environmental Design on Children with Autsim. (Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/152667

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Kanakri, Shireen M. “The Impact of Acoustical Environmental Design on Children with Autsim.” 2014. Thesis, Texas A&M University. Accessed March 23, 2019. http://hdl.handle.net/1969.1/152667.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Kanakri, Shireen M. “The Impact of Acoustical Environmental Design on Children with Autsim.” 2014. Web. 23 Mar 2019.

Vancouver:

Kanakri SM. The Impact of Acoustical Environmental Design on Children with Autsim. [Internet] [Thesis]. Texas A&M University; 2014. [cited 2019 Mar 23]. Available from: http://hdl.handle.net/1969.1/152667.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kanakri SM. The Impact of Acoustical Environmental Design on Children with Autsim. [Thesis]. Texas A&M University; 2014. Available from: http://hdl.handle.net/1969.1/152667

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

13. Zhang, Ziyin. Nonlinear Assessment of Material and Interface Imperfections Based on Non-Collinear Shear Wave Mixing.

Degree: MS, Engineering and Applied Science: Aerospace Engineering, 2016, University of Cincinnati

URL: http://rave.ohiolink.edu/etdc/view?acc_num=ucin1458814847

► Non-collinear shear wave mixing has been reported to exhibit potential for assessing the additional nonlinearity caused by both bulk material degradation and interface imperfections between… (more)

▼ Non-collinear shear wave mixing has been reported to exhibit potential for assessing the additional nonlinearity caused by both bulk material degradation and interface imperfections between solids. When this technique is used to assess the material bulk nonlinearity, certain resonance condition has to be satisfied while when it is used to assess the nonlinearity of an imperfect plane interface between two half-solids, the resonance condition can be relaxed. However, even when misaligned from the bulk resonance conditions, this technique is still somewhat sensitive to the intrinsic bulk nonlinearity and the relatively strong bulk nonlinearity of the surrounding material adversely reduces the nonlinear contrast produced by interface imperfections.In an effort to increase the nonlinear contrast produced by the imperfect interfaces, this research focused on conducting a combined analytical and computational investigation to identify the optimal inspection conditions for ultrasonic characterization of imperfect interfaces based on non-collinear shear wave mixing. The mechanism of nonlinear shear wave mixing technique was further investigated to identify the main factors which affect the strength of the detected bulk nonlinearity of the material. Then two analytical models for nonlinear imperfect interfaces were developed by using a finite nonlinear interfacial stiffness representation of an imperfect interface of vanishing thickness and a thin nonlinear interphase layer in a quasi-static approximation, respectively. Both analytical models were numerically verified by comparison to COMSOL finite element simulations. The results show that the imperfect interface generates the same amount of nonlinearity in both reflection and transmission fields and detecting the nonlinear reflection completely eliminates the adverse influence of bulk nonlinearity and therefore increases the nonlinear contrast generated by the imperfect interface. The feasibility of detecting the nonlinear reflection from the imperfect interface has also been confirmed to be possible by the experiment on Ti-6Al-4V diffusion bonded specimens using enhanced non-collinear ultrasonic wave mixing system implemented with a novel four-way polarity flipping technique. Advisors/Committee Members: Nagy, Peter (Committee Chair).

Subjects/Keywords: Acoustics

11 more images…

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APA (6^th Edition):

Zhang, Z. (2016). Nonlinear Assessment of Material and Interface Imperfections Based on Non-Collinear Shear Wave Mixing. (Masters Thesis). University of Cincinnati. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=ucin1458814847

Chicago Manual of Style (16^th Edition):

Zhang, Ziyin. “Nonlinear Assessment of Material and Interface Imperfections Based on Non-Collinear Shear Wave Mixing.” 2016. Masters Thesis, University of Cincinnati. Accessed March 23, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1458814847.

MLA Handbook (7^th Edition):

Zhang, Ziyin. “Nonlinear Assessment of Material and Interface Imperfections Based on Non-Collinear Shear Wave Mixing.” 2016. Web. 23 Mar 2019.

Vancouver:

Zhang Z. Nonlinear Assessment of Material and Interface Imperfections Based on Non-Collinear Shear Wave Mixing. [Internet] [Masters thesis]. University of Cincinnati; 2016. [cited 2019 Mar 23]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ucin1458814847.

Council of Science Editors:

Zhang Z. Nonlinear Assessment of Material and Interface Imperfections Based on Non-Collinear Shear Wave Mixing. [Masters Thesis]. University of Cincinnati; 2016. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ucin1458814847

The Ohio State University

14. Horstemeyer, Mark. The Determination of Failure Mechanisms in the Fatigue of Unidirectional Composites by the Use of Acoustic Emissions.

Degree: MS, Mechanical Engineering, 1987, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1380544561

► The fatigue failure mechanisms of three unidirectional laminated composite material systems (consisting of a common fiber in three varying matrices) were investigated. Static tension tests… (more)

Subjects/Keywords: Acoustics

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APA (6^th Edition):

Horstemeyer, M. (1987). The Determination of Failure Mechanisms in the Fatigue of Unidirectional Composites by the Use of Acoustic Emissions. (Masters Thesis). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1380544561

Chicago Manual of Style (16^th Edition):

Horstemeyer, Mark. “The Determination of Failure Mechanisms in the Fatigue of Unidirectional Composites by the Use of Acoustic Emissions.” 1987. Masters Thesis, The Ohio State University. Accessed March 23, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1380544561.

MLA Handbook (7^th Edition):

Horstemeyer, Mark. “The Determination of Failure Mechanisms in the Fatigue of Unidirectional Composites by the Use of Acoustic Emissions.” 1987. Web. 23 Mar 2019.

Vancouver:

Horstemeyer M. The Determination of Failure Mechanisms in the Fatigue of Unidirectional Composites by the Use of Acoustic Emissions. [Internet] [Masters thesis]. The Ohio State University; 1987. [cited 2019 Mar 23]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1380544561.

Council of Science Editors:

Horstemeyer M. The Determination of Failure Mechanisms in the Fatigue of Unidirectional Composites by the Use of Acoustic Emissions. [Masters Thesis]. The Ohio State University; 1987. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1380544561

University of Gothenburg / Göteborgs Universitet

15. Hellström, Per-Anders, 1946-. Sound transfer function and hearing : studies of the acoustics of the external ear auditory canal in man.

Degree: 1995, University of Gothenburg / Göteborgs Universitet

URL: http://hdl.handle.net/2077/11594

Subjects/Keywords: Acoustics

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APA (6^th Edition):

Hellström, Per-Anders, 1. (1995). Sound transfer function and hearing : studies of the acoustics of the external ear auditory canal in man. (Thesis). University of Gothenburg / Göteborgs Universitet. Retrieved from http://hdl.handle.net/2077/11594

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Hellström, Per-Anders, 1946-. “Sound transfer function and hearing : studies of the acoustics of the external ear auditory canal in man.” 1995. Thesis, University of Gothenburg / Göteborgs Universitet. Accessed March 23, 2019. http://hdl.handle.net/2077/11594.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Hellström, Per-Anders, 1946-. “Sound transfer function and hearing : studies of the acoustics of the external ear auditory canal in man.” 1995. Web. 23 Mar 2019.

Vancouver:

Hellström, Per-Anders 1. Sound transfer function and hearing : studies of the acoustics of the external ear auditory canal in man. [Internet] [Thesis]. University of Gothenburg / Göteborgs Universitet; 1995. [cited 2019 Mar 23]. Available from: http://hdl.handle.net/2077/11594.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Hellström, Per-Anders 1. Sound transfer function and hearing : studies of the acoustics of the external ear auditory canal in man. [Thesis]. University of Gothenburg / Göteborgs Universitet; 1995. Available from: http://hdl.handle.net/2077/11594

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Penn State University

16. Joseph, Jeremy Matthew. Effects Of Boundary Variability On The Statistics Of Received Signal Parameters.

Degree: MS, Acoustics, 2009, Penn State University

URL: https://etda.libraries.psu.edu/catalog/9152

► Underwater acoustic propagation introduces significant variability in the received signal through time-varying rough surface and bottom scattering as well as volume inhomogeneities. This work considers… (more)

Subjects/Keywords: underwater acoustics

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APA (6^th Edition):

Joseph, J. M. (2009). Effects Of Boundary Variability On The Statistics Of Received Signal Parameters. (Masters Thesis). Penn State University. Retrieved from https://etda.libraries.psu.edu/catalog/9152

Chicago Manual of Style (16^th Edition):

Joseph, Jeremy Matthew. “Effects Of Boundary Variability On The Statistics Of Received Signal Parameters.” 2009. Masters Thesis, Penn State University. Accessed March 23, 2019. https://etda.libraries.psu.edu/catalog/9152.

MLA Handbook (7^th Edition):

Joseph, Jeremy Matthew. “Effects Of Boundary Variability On The Statistics Of Received Signal Parameters.” 2009. Web. 23 Mar 2019.

Vancouver:

Joseph JM. Effects Of Boundary Variability On The Statistics Of Received Signal Parameters. [Internet] [Masters thesis]. Penn State University; 2009. [cited 2019 Mar 23]. Available from: https://etda.libraries.psu.edu/catalog/9152.

Council of Science Editors:

Joseph JM. Effects Of Boundary Variability On The Statistics Of Received Signal Parameters. [Masters Thesis]. Penn State University; 2009. Available from: https://etda.libraries.psu.edu/catalog/9152

Montana State University

17. Spinelli, Justin Philip. Spatial and temporal entrainment of fish from Hauser Reservoir, Montana.

Degree: College of Letters & Science, 2010, Montana State University

URL: https://scholarworks.montana.edu/xmlui/handle/1/2332

► Management of fish populations in Hauser Reservoir, Montana, is hindered by undesirable and unpredictable downstream entrainment of fish through Hauser Dam. My objectives were to… (more)

▼ Management of fish populations in Hauser Reservoir, Montana, is hindered by undesirable and unpredictable downstream entrainment of fish through Hauser Dam. My objectives were to estimate spatial and temporal entrainment of fish larger than 100 mm total length through Hauser Dam and identify environmental and operational conditions influencing entrainment. I quantified entrainment using hydroacoustics at the turbine intakes from July 2007 to November 2008 and the spillway from May to July 2008. Species composition was characterized using multiple netting gears. I investigated the relationships between entrainment and conditions in the reservoir and at the dam using multiple linear regression. Total entrainment was 145,470 (95% CI = 138,144 - 152,796). About 60% of entrained fish were smaller than 220 mm. Annual entrainment from summer to autumn was higher in 2007 (N = 79,031; 95% CI = 73,861 - 84,201) than in 2008 (N = 52,513; 95% CI = 47,830 - 57,196). I applied species composition by size to the hydroacoustic data to identify entrained fish species, but many fish (N = 55,529; 95% CI = 50,337 - 60,721) could not be reliably assigned to species because concurrent net catches did not include individuals of similar size. Total entrainment was mostly made up of rainbow trout (33.3%) and walleye (30.2%). Spillway entrainment was 16% of total entrainment and was correlated with spillway discharge; turbine entrainment was not. Turbine entrainment increased from summer to autumn in both years, probably in response to autumn turnover and releases of hatchery rainbow trout. On average, 9.0% (SD = 1.2%) of hatchery fish were entrained soon after being stocked in the reservoir. Most regression models were equally ranked using Akaike Information Criterion corrected for small sample size indicating that a combination of conditions were influencing entrainment. Spatial and temporal patterns of entrainment at Hauser Dam were typical of other facilities in that entrainment varied in response to a changing combination of operational and environmental conditions. Identification of these patterns of entrainment allows managers to evaluate effects to the reservoir population and make more informed decisions. Advisors/Committee Members: Chairperson, Graduate Committee: Alexander V. Zale. (advisor).

Subjects/Keywords: Underwater acoustics.

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APA (6^th Edition):

Spinelli, J. P. (2010). Spatial and temporal entrainment of fish from Hauser Reservoir, Montana. (Thesis). Montana State University. Retrieved from https://scholarworks.montana.edu/xmlui/handle/1/2332

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Spinelli, Justin Philip. “Spatial and temporal entrainment of fish from Hauser Reservoir, Montana.” 2010. Thesis, Montana State University. Accessed March 23, 2019. https://scholarworks.montana.edu/xmlui/handle/1/2332.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Spinelli, Justin Philip. “Spatial and temporal entrainment of fish from Hauser Reservoir, Montana.” 2010. Web. 23 Mar 2019.

Vancouver:

Spinelli JP. Spatial and temporal entrainment of fish from Hauser Reservoir, Montana. [Internet] [Thesis]. Montana State University; 2010. [cited 2019 Mar 23]. Available from: https://scholarworks.montana.edu/xmlui/handle/1/2332.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Spinelli JP. Spatial and temporal entrainment of fish from Hauser Reservoir, Montana. [Thesis]. Montana State University; 2010. Available from: https://scholarworks.montana.edu/xmlui/handle/1/2332

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

McGill University

18. Lefebvre, Antoine. Computational acoustic methods for the design of woodwind instruments.

Degree: PhD, Schulich School of Music, 2011, McGill University

URL: http://digitool.library.mcgill.ca/thesisfile97000.pdf

►

This thesis presents a number of methods for the computational analysis of woodwind instruments. The Transmission-Matrix Method (TMM) for the calculation of the input impedance… (more)

▼

This thesis presents a number of methods for the computational analysis of woodwind instruments. The Transmission-Matrix Method (TMM) for the calculation of the input impedance of an instrument is described. An approach based on the Finite Element Method (FEM) is applied to the determination of the transmission-matrix parameters of woodwind instrument toneholes, from which new formulas are developed that extend the range of validity of current theories. The effect of a hanging keypad is investigated and discrepancies with current theories are found for short toneholes. This approach was applied as well to toneholes on a conical bore, and we conclude that the tonehole transmission matrix parameters developed on a cylindrical bore are equally valid for use on a conical bore.A boundary condition for the approximation of the boundary layer losses for use with the FEM was developed, and it enables the simulation of complete woodwind instruments. The comparison of the simulations of instruments with many open or closed toneholes with calculations using the TMM reveal discrepancies that are most likely attributable to internalor external tonehole interactions. This is not taken into account in the TMM and poses a limit to its accuracy. The maximal error is found to be smaller than 10 cents. The effect of the curvature of the main bore is investigated using the FEM. The radiation impedance of a wind instrument bell is calculated using the FEM and compared to TMM calculations; we conclude that the TMM is not appropriate for the simulation of flaring bells.Finally, a method is presented for the calculation of the tonehole positions and dimensions under various constraints using an optimization algorithm, which is based on the estimation of the playing frequencies using the Transmission-Matrix Method. A number of simple woodwind instruments are designed using this algorithm and prototypes evaluated.

Cette thèse présente des méthodes pour la conception d'instruments de musique à vent à l'aide de calculs scientifiques. La méthode des matrices de transfert pour le calcul de l'impédance d'entrée est décrite. Une méthode basée sur le calcul par Éléments Finis est appliquée à la détermination des paramètres des matrices de transfert des trous latéraux des instruments à vent, à partir desquels de nouvelles équations sont développées pour étendre la validité deséquations de la littérature. Des simulations par Éléments Finis de l'effet d'une clé suspendue au-dessus des trous latéraux donnent des résultats différents de la théorie pour les trous courts. La méthode est aussi appliquée à des trous sur un corps conique et nous concluons que les paramètres des matrices de transmission développées pour les tuyaux cylindriques sont également valides pour les tuyaux coniques.Une condition frontière pour l'approximation des pertes viscothermiques dans les calculs par Éléments Finis est développée et permet la simulation d'instruments complets. La comparaison des résultats de simulations d'instruments avec plusieurs trous ouverts ou fermés…

Advisors/Committee Members: Gary Scavone (Internal/Supervisor).

Subjects/Keywords: Physics - Acoustics

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APA (6^th Edition):

Lefebvre, A. (2011). Computational acoustic methods for the design of woodwind instruments. (Doctoral Dissertation). McGill University. Retrieved from http://digitool.library.mcgill.ca/thesisfile97000.pdf

Chicago Manual of Style (16^th Edition):

Lefebvre, Antoine. “Computational acoustic methods for the design of woodwind instruments.” 2011. Doctoral Dissertation, McGill University. Accessed March 23, 2019. http://digitool.library.mcgill.ca/thesisfile97000.pdf.

MLA Handbook (7^th Edition):

Lefebvre, Antoine. “Computational acoustic methods for the design of woodwind instruments.” 2011. Web. 23 Mar 2019.

Vancouver:

Lefebvre A. Computational acoustic methods for the design of woodwind instruments. [Internet] [Doctoral dissertation]. McGill University; 2011. [cited 2019 Mar 23]. Available from: http://digitool.library.mcgill.ca/thesisfile97000.pdf.

Council of Science Editors:

Lefebvre A. Computational acoustic methods for the design of woodwind instruments. [Doctoral Dissertation]. McGill University; 2011. Available from: http://digitool.library.mcgill.ca/thesisfile97000.pdf

McGill University

19. Scherrer, Bertrand. Physically-informed indirect acquisition of instrumental gestures on the classical guitar: Extracting the angle of release.

Degree: PhD, Schulich School of Music, 2013, McGill University

URL: http://digitool.library.mcgill.ca/thesisfile116950.pdf

►

On the classical guitar, a performer can impart very distinct qualities to the sound by changing the way in which s/he manipulates the instrument. In… (more)

▼

On the classical guitar, a performer can impart very distinct qualities to the sound by changing the way in which s/he manipulates the instrument. In fact, guitarists can often infer how the instrument was played by listening to a recording, based on their knowledge of playing techniques. In other words, information about guitarists' manipulations is present in the sound of the instrument. The goal of this work is thus to develop an automatic method able to extract part of that information from a recording. In particular, this thesis focuses on one playing parameter: the angle with which the string isreleased at the end of a pluck, or the "angle of release". Along with the plucking position, this gestural parameteris known to have a clear influence on the sound of the guitar. Central to this research is the use of the physics of sound production on the classical guitar. Indeed, guitar acoustics are used to predict the effect of the angle of release on the sound, and establish formal links between signal parameters and this gestural parameter. This dissertation first situates itself with respect to previous work on gestural acquisition on the classical guitar. It then discusses the acoustics of the classical guitar in detail, in order to reveal the underlying structure of typical guitar sounds. It also considers general and specialized aspects of classical guitar playing technique, in order to better understand how guitarists can fashion sound, within the limits imposed by the physics of the instrument. In its second and main part, this dissertation adapts a standard physical model of a guitar string to include the influence of the angle of release on the vibration of the instrument. Most importantly, it establishes a clear relationship between the angle of release and parameters of velocity signals. Then it presents a signal analysis framework developed to extract signal parameters that are affected by changes in the angle of release.In its final part, this research discusses results obtained when the method for angle of release extraction is applied to velocity signals measured at the bridge of the guitar. Strengths and shortcomings of the method, as well as future avenues for research are also addressed.

Les guitaristes classiques peuvent apporter de multiples nuances aux sons de leur instrument grâce à un large éventail de techniques de jeu. Il leur est même possible d'identifier comment une guitare a été jouée par l'écoute attentive d'un enregistrement, en confrontant les sons entendus à leurs connaissances sur la pratique instrumentale. Ce dernier point suggère la présence d'informations sur les manipulations des instrumentistes dans les sons produits. L'objectif de ce travail de doctorat est donc de développer des méthodes automatiques permettant d'extraire une partie de ces informations à partir d'enregistrements des vibrations de l'instrument. Cette thèse se concentre sur un paramètre spécifique: l'angle avec lequel une corde quitte le doigt à la fin du pincement, désigné "angle de lâcher" par la suite. En…

Advisors/Committee Members: Philippe Depalle (Supervisor).

Subjects/Keywords: Physics - Acoustics

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APA (6^th Edition):

Scherrer, B. (2013). Physically-informed indirect acquisition of instrumental gestures on the classical guitar: Extracting the angle of release. (Doctoral Dissertation). McGill University. Retrieved from http://digitool.library.mcgill.ca/thesisfile116950.pdf

Chicago Manual of Style (16^th Edition):

Scherrer, Bertrand. “Physically-informed indirect acquisition of instrumental gestures on the classical guitar: Extracting the angle of release.” 2013. Doctoral Dissertation, McGill University. Accessed March 23, 2019. http://digitool.library.mcgill.ca/thesisfile116950.pdf.

MLA Handbook (7^th Edition):

Scherrer, Bertrand. “Physically-informed indirect acquisition of instrumental gestures on the classical guitar: Extracting the angle of release.” 2013. Web. 23 Mar 2019.

Vancouver:

Scherrer B. Physically-informed indirect acquisition of instrumental gestures on the classical guitar: Extracting the angle of release. [Internet] [Doctoral dissertation]. McGill University; 2013. [cited 2019 Mar 23]. Available from: http://digitool.library.mcgill.ca/thesisfile116950.pdf.

Council of Science Editors:

Scherrer B. Physically-informed indirect acquisition of instrumental gestures on the classical guitar: Extracting the angle of release. [Doctoral Dissertation]. McGill University; 2013. Available from: http://digitool.library.mcgill.ca/thesisfile116950.pdf

University of Waterloo

20. Matheson, Ryan. An Investigation and Application of the Finite Difference Time Domain Method as a Tool for Solving Equalization Problems in Acoustics.

Degree: 2010, University of Waterloo

URL: http://hdl.handle.net/10012/5001

► This thesis investigates the issues in deriving the Finite Di erence Time Domain Method, including the derivation of a unique method for exciting an FDTD… (more)

Subjects/Keywords: FDTD; Acoustics

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APA (6^th Edition):

Matheson, R. (2010). An Investigation and Application of the Finite Difference Time Domain Method as a Tool for Solving Equalization Problems in Acoustics. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/5001

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Matheson, Ryan. “An Investigation and Application of the Finite Difference Time Domain Method as a Tool for Solving Equalization Problems in Acoustics.” 2010. Thesis, University of Waterloo. Accessed March 23, 2019. http://hdl.handle.net/10012/5001.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Matheson, Ryan. “An Investigation and Application of the Finite Difference Time Domain Method as a Tool for Solving Equalization Problems in Acoustics.” 2010. Web. 23 Mar 2019.

Vancouver:

Matheson R. An Investigation and Application of the Finite Difference Time Domain Method as a Tool for Solving Equalization Problems in Acoustics. [Internet] [Thesis]. University of Waterloo; 2010. [cited 2019 Mar 23]. Available from: http://hdl.handle.net/10012/5001.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Matheson R. An Investigation and Application of the Finite Difference Time Domain Method as a Tool for Solving Equalization Problems in Acoustics. [Thesis]. University of Waterloo; 2010. Available from: http://hdl.handle.net/10012/5001

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

21. Wattez, Y.C.M. Acoustics in Sports halls:.

Degree: 2012, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:0bdfeb44-b72a-409d-81a0-895aceee72da

► Problem statement Sports teachers (and other users) often suffer from bad acoustics in sports halls. A survey revealed that most complaints are about tiredness, throat… (more)

▼ Problem statement Sports teachers (and other users) often suffer from bad acoustics in sports halls. A survey revealed that most complaints are about tiredness, throat problems and hearing problems. Bad acoustics in sports halls are mainly caused by an uneven distribution of the sound absorbing material in a hall. Often, the roof absorbs most of the sound where the floor and walls up to 3 meter reflect most of the sound. This lower part of the walls needs to be strong, flat and hard to rebound balls. In this way, vertically reflected sound is being absorbed faster than horizontally reflected sound. This difference causes sagging Schroeder curves and therefore long reverberation times. Dutch standards for acoustics are mainly based on reverberation times, so sagging curves are unwanted. Besides the problem of the long reverberation times, another problem is found. Measurements show that sports halls constructed with stone-like materials absorb sound according to the expectations of the material properties. Sports halls constructed with perforated steel sound absorbing panels give different results. These panels seem to behave differently on sound absorption than expected. Especially low frequencies seem to be absorbed extremely well by the panels. The research question therefore is: ‘Why do perforated steel sound absorbing panels seem to behave differently in absorption coefficient in sports halls than expected from laboratory test results?’ Because this question is part of the larger subject ‘acoustics in sports halls’, it is necessary to investigate the acoustical behaviour of perforated steel panels for a broad demarcation of the subject. Approach In order to find an answer to the research question, two hypotheses are tested by measurements. The measurements are done in a laboratory and in a scale model. The results are analysed. The conclusions give insight in the sound absorbing behaviour of perforated steel sound absorbing panels. Besides that, the conclusions give guidelines to the design phase of this graduation project. Hypotheses: 1. A perforated steel panel behaves differently in practice than in a laboratory situation on absorption coefficient because the shape of the panels causes sound absorption of parallel striking sound based on a phase shift principle. 2. A perforated steel panel behaves differently in practice than in a laboratory situation on absorption coefficient because the backing construction has influence on the result. Laboratory measurements Absorption coefficient measurements are done in the reverberation room of the acoustical laboratory. Different samples of the roof structure are tested. By comparing the results, we get insight in the influence of different parts of the roof structure. Besides that, hypothesis one can be tested: the influence of the backing construction will become clear. Scale model measurements The scale model makes it possible to test the influence of different shaped roof structures in a small model. By using the same, reflecting material for all walls, we get… Advisors/Committee Members: Tenpierik, M.J..

Subjects/Keywords: acoustics

…suffer from bad acoustics in sports halls. A survey revealed that most complaints are about… …tiredness, throat problems and hearing problems. Bad acoustics in sports halls are mainly caused… …for acoustics are mainly based on reverberation times, so sagging curves are unwanted… …laboratory test results?’ Because this question is part of the larger subject ‘acoustics in sports… …weakest link when talking about acoustics in sports halls. The designed panel should improve…

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APA (6^th Edition):

Wattez, Y. C. M. (2012). Acoustics in Sports halls:. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:0bdfeb44-b72a-409d-81a0-895aceee72da

Chicago Manual of Style (16^th Edition):

Wattez, Y C M. “Acoustics in Sports halls:.” 2012. Masters Thesis, Delft University of Technology. Accessed March 23, 2019. http://resolver.tudelft.nl/uuid:0bdfeb44-b72a-409d-81a0-895aceee72da.

MLA Handbook (7^th Edition):

Wattez, Y C M. “Acoustics in Sports halls:.” 2012. Web. 23 Mar 2019.

Vancouver:

Wattez YCM. Acoustics in Sports halls:. [Internet] [Masters thesis]. Delft University of Technology; 2012. [cited 2019 Mar 23]. Available from: http://resolver.tudelft.nl/uuid:0bdfeb44-b72a-409d-81a0-895aceee72da.

Council of Science Editors:

Wattez YCM. Acoustics in Sports halls:. [Masters Thesis]. Delft University of Technology; 2012. Available from: http://resolver.tudelft.nl/uuid:0bdfeb44-b72a-409d-81a0-895aceee72da

Rice University

22. VAN ROOY, DAVID LEE. DIGITAL ULTRASONIC WAVEFRONT RECONSTRUCTION IN THE NEAR FIELD.

Degree: PhD, Natural Sciences, 1971, Rice University

URL: http://hdl.handle.net/1911/14803

Subjects/Keywords: Acoustics

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APA (6^th Edition):

VAN ROOY, D. L. (1971). DIGITAL ULTRASONIC WAVEFRONT RECONSTRUCTION IN THE NEAR FIELD. (Doctoral Dissertation). Rice University. Retrieved from http://hdl.handle.net/1911/14803

Chicago Manual of Style (16^th Edition):

VAN ROOY, DAVID LEE. “DIGITAL ULTRASONIC WAVEFRONT RECONSTRUCTION IN THE NEAR FIELD.” 1971. Doctoral Dissertation, Rice University. Accessed March 23, 2019. http://hdl.handle.net/1911/14803.

MLA Handbook (7^th Edition):

VAN ROOY, DAVID LEE. “DIGITAL ULTRASONIC WAVEFRONT RECONSTRUCTION IN THE NEAR FIELD.” 1971. Web. 23 Mar 2019.

Vancouver:

VAN ROOY DL. DIGITAL ULTRASONIC WAVEFRONT RECONSTRUCTION IN THE NEAR FIELD. [Internet] [Doctoral dissertation]. Rice University; 1971. [cited 2019 Mar 23]. Available from: http://hdl.handle.net/1911/14803.

Council of Science Editors:

VAN ROOY DL. DIGITAL ULTRASONIC WAVEFRONT RECONSTRUCTION IN THE NEAR FIELD. [Doctoral Dissertation]. Rice University; 1971. Available from: http://hdl.handle.net/1911/14803

Rice University

23. Claytor, Richard N. A microwave acoustic investigation of the spin-lattice interaction for F centers in quartz.

Degree: PhD, Natural Sciences, 1961, Rice University

URL: http://hdl.handle.net/1911/18218

► An investigation was made of the spin-lattice interaction of F centers in quartz through the use of 9.3 Gc acoustic waves. An upper limit to… (more)

Subjects/Keywords: Acoustics

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APA (6^th Edition):

Claytor, R. N. (1961). A microwave acoustic investigation of the spin-lattice interaction for F centers in quartz. (Doctoral Dissertation). Rice University. Retrieved from http://hdl.handle.net/1911/18218

Chicago Manual of Style (16^th Edition):

Claytor, Richard N. “A microwave acoustic investigation of the spin-lattice interaction for F centers in quartz.” 1961. Doctoral Dissertation, Rice University. Accessed March 23, 2019. http://hdl.handle.net/1911/18218.

MLA Handbook (7^th Edition):

Claytor, Richard N. “A microwave acoustic investigation of the spin-lattice interaction for F centers in quartz.” 1961. Web. 23 Mar 2019.

Vancouver:

Claytor RN. A microwave acoustic investigation of the spin-lattice interaction for F centers in quartz. [Internet] [Doctoral dissertation]. Rice University; 1961. [cited 2019 Mar 23]. Available from: http://hdl.handle.net/1911/18218.

Council of Science Editors:

Claytor RN. A microwave acoustic investigation of the spin-lattice interaction for F centers in quartz. [Doctoral Dissertation]. Rice University; 1961. Available from: http://hdl.handle.net/1911/18218

Rice University

24. Closmann, Philip Joseph. Ultrasonic velocity measurements on potassium chrome alum.

Degree: PhD, Natural Sciences, 1953, Rice University

URL: http://hdl.handle.net/1911/18219

► The velocity of propagation of longitudinal sound waves in a single crystal of potassium chrome alum was measured as a function of temperature. The waves… (more)

Subjects/Keywords: Acoustics

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APA (6^th Edition):

Closmann, P. J. (1953). Ultrasonic velocity measurements on potassium chrome alum. (Doctoral Dissertation). Rice University. Retrieved from http://hdl.handle.net/1911/18219

Chicago Manual of Style (16^th Edition):

Closmann, Philip Joseph. “Ultrasonic velocity measurements on potassium chrome alum.” 1953. Doctoral Dissertation, Rice University. Accessed March 23, 2019. http://hdl.handle.net/1911/18219.

MLA Handbook (7^th Edition):

Closmann, Philip Joseph. “Ultrasonic velocity measurements on potassium chrome alum.” 1953. Web. 23 Mar 2019.

Vancouver:

Closmann PJ. Ultrasonic velocity measurements on potassium chrome alum. [Internet] [Doctoral dissertation]. Rice University; 1953. [cited 2019 Mar 23]. Available from: http://hdl.handle.net/1911/18219.

Council of Science Editors:

Closmann PJ. Ultrasonic velocity measurements on potassium chrome alum. [Doctoral Dissertation]. Rice University; 1953. Available from: http://hdl.handle.net/1911/18219

University of Oregon

25. Brittell, Megen Elizabeth. Neuro-Imaging Support for the Use of Audio to Represent Geospatial Location in Cartographic Design.

Degree: 2019, University of Oregon

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=13420194

► Audio has the capacity to display geospatial data. As auditory display design grapples with the challenge of aligning the spatial dimensions of the data… (more)

▼ Audio has the capacity to display geospatial data. As auditory display design grapples with the challenge of aligning the spatial dimensions of the data with the dimensions of the display, this dissertation investigates the role of time in auditory geographic maps. Three auditory map types translate geospatial data into collections of musical notes, and arrangement of those notes in time vary across three map types: sequential, augmented-sequential , and concurrent. Behavioral and neuroimaging methods assess the auditory symbology. A behavioral task establishes geographic context, and neuroimaging provides a quantitative measure of brain responses to the behavioral task under recall and active listening response conditions. In both behavioral and neuroimaging data, two paired contrasts measure differences between the sequential and augmented-sequential map types, and between the augmented- sequential and concurrent map types. Behavioral data reveal differences in both response time and accuracy. Response times for the augmented-sequential map type are substantially longer in both contrasts under the active response condition. Accuracy is lower for concurrent maps than for augmented-sequential maps; response condition influences direction of differences in accuracy between the sequential and augmented-sequential map types. Neuroimaging data from functional magnetic resonance imaging (fMRI) show significant differences in blood-oxygenation level dependent (BOLD) response during map listening. The BOLD response is significantly stronger in the left auditory cortex and planum temporale for the concurrent map type in contrast to the augmented- sequential map type. And the response in the right auditory cortex and bilaterally in the visual cortex is significantly stronger for augmented-sequential maps in contrast to sequential maps. Results from this research provide empirical evidence to inform choices in the design of auditory cartographic displays, enriching the diversity of geographic map artifacts.

Subjects/Keywords: Geography; Acoustics

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APA (6^th Edition):

Brittell, M. E. (2019). Neuro-Imaging Support for the Use of Audio to Represent Geospatial Location in Cartographic Design. (Thesis). University of Oregon. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=13420194

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Brittell, Megen Elizabeth. “Neuro-Imaging Support for the Use of Audio to Represent Geospatial Location in Cartographic Design.” 2019. Thesis, University of Oregon. Accessed March 23, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=13420194.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Brittell, Megen Elizabeth. “Neuro-Imaging Support for the Use of Audio to Represent Geospatial Location in Cartographic Design.” 2019. Web. 23 Mar 2019.

Vancouver:

Brittell ME. Neuro-Imaging Support for the Use of Audio to Represent Geospatial Location in Cartographic Design. [Internet] [Thesis]. University of Oregon; 2019. [cited 2019 Mar 23]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=13420194.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Brittell ME. Neuro-Imaging Support for the Use of Audio to Represent Geospatial Location in Cartographic Design. [Thesis]. University of Oregon; 2019. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=13420194

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Penn State University

26. Walsh, Gregory Daniel. A PRELIMINARY ACOUSTIC INVESTIGATION OF A COAXIAL HELICOPTER IN HIGH-SPEED FLIGHT.

Degree: MS, Aerospace Engineering, 2016, Penn State University

URL: https://etda.libraries.psu.edu/catalog/c534fn92g

► The desire for a vertical takeoff and landing (VTOL) aircraft capable of high forward flight speeds is very strong. Compound lift-offset coaxial helicopter designs have… (more)

Subjects/Keywords: Acoustics; Coaxial Helicopter; Rotorcraft; Rotorcraft Acoustics; Helicopter

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APA (6^th Edition):

Walsh, G. D. (2016). A PRELIMINARY ACOUSTIC INVESTIGATION OF A COAXIAL HELICOPTER IN HIGH-SPEED FLIGHT. (Masters Thesis). Penn State University. Retrieved from https://etda.libraries.psu.edu/catalog/c534fn92g

Chicago Manual of Style (16^th Edition):

Walsh, Gregory Daniel. “A PRELIMINARY ACOUSTIC INVESTIGATION OF A COAXIAL HELICOPTER IN HIGH-SPEED FLIGHT.” 2016. Masters Thesis, Penn State University. Accessed March 23, 2019. https://etda.libraries.psu.edu/catalog/c534fn92g.

MLA Handbook (7^th Edition):

Walsh, Gregory Daniel. “A PRELIMINARY ACOUSTIC INVESTIGATION OF A COAXIAL HELICOPTER IN HIGH-SPEED FLIGHT.” 2016. Web. 23 Mar 2019.

Vancouver:

Walsh GD. A PRELIMINARY ACOUSTIC INVESTIGATION OF A COAXIAL HELICOPTER IN HIGH-SPEED FLIGHT. [Internet] [Masters thesis]. Penn State University; 2016. [cited 2019 Mar 23]. Available from: https://etda.libraries.psu.edu/catalog/c534fn92g.

Council of Science Editors:

Walsh GD. A PRELIMINARY ACOUSTIC INVESTIGATION OF A COAXIAL HELICOPTER IN HIGH-SPEED FLIGHT. [Masters Thesis]. Penn State University; 2016. Available from: https://etda.libraries.psu.edu/catalog/c534fn92g

University of Manchester

27. Rowley, William. Mathematical modelling of novel metamaterials for noise reduction applications.

Degree: PhD, 2018, University of Manchester

URL: https://www.research.manchester.ac.uk/portal/en/theses/mathematical-modelling-of-novel-metamaterials-for-noise-reduction-applications(7ce8e9fb-4c2c-4637-ac89-c156949f9a27).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.764627

► In this thesis we investigate acoustic metamaterials and how they can influence incident sound waves. Specifically we are interested in the mathematical technique of transformation… (more)

Subjects/Keywords: 510; Metamaterials; Acoustics; Transformation acoustics; Homogenisation

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APA (6^th Edition):

Rowley, W. (2018). Mathematical modelling of novel metamaterials for noise reduction applications. (Doctoral Dissertation). University of Manchester. Retrieved from https://www.research.manchester.ac.uk/portal/en/theses/mathematical-modelling-of-novel-metamaterials-for-noise-reduction-applications(7ce8e9fb-4c2c-4637-ac89-c156949f9a27).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.764627

Chicago Manual of Style (16^th Edition):

Rowley, William. “Mathematical modelling of novel metamaterials for noise reduction applications.” 2018. Doctoral Dissertation, University of Manchester. Accessed March 23, 2019. https://www.research.manchester.ac.uk/portal/en/theses/mathematical-modelling-of-novel-metamaterials-for-noise-reduction-applications(7ce8e9fb-4c2c-4637-ac89-c156949f9a27).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.764627.

MLA Handbook (7^th Edition):

Rowley, William. “Mathematical modelling of novel metamaterials for noise reduction applications.” 2018. Web. 23 Mar 2019.

Vancouver:

Rowley W. Mathematical modelling of novel metamaterials for noise reduction applications. [Internet] [Doctoral dissertation]. University of Manchester; 2018. [cited 2019 Mar 23]. Available from: https://www.research.manchester.ac.uk/portal/en/theses/mathematical-modelling-of-novel-metamaterials-for-noise-reduction-applications(7ce8e9fb-4c2c-4637-ac89-c156949f9a27).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.764627.

Council of Science Editors:

Rowley W. Mathematical modelling of novel metamaterials for noise reduction applications. [Doctoral Dissertation]. University of Manchester; 2018. Available from: https://www.research.manchester.ac.uk/portal/en/theses/mathematical-modelling-of-novel-metamaterials-for-noise-reduction-applications(7ce8e9fb-4c2c-4637-ac89-c156949f9a27).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.764627

University of Edinburgh

28. Bromage, Seona. Visualisation of the lip motion of brass instrument players, and investigations of an artificial mouth as a tool for comparative studies of instruments.

Degree: PhD, 2007, University of Edinburgh

URL: http://hdl.handle.net/1842/1966

► When playing a brass instrument the lips of the player fulfil a similar role to the cane reeds of wood-wind instruments. The nature of the… (more)

▼ When playing a brass instrument the lips of the player fulfil a similar role to the cane reeds of wood-wind instruments. The nature of the motion of this lip-reed determines the ow of air through the lips, between the player's mouth and the instrument. It is a complicated feedback system in which the motion of the lips controls the air ow, which itself affects the behaviour of the lips. In recent years several designs of artificial mouth have been developed; these model the human lips using latex rubber tubes filled with water. These artificial mouths are increasingly used in experiments rather than enlisting the services of a musician as they have many advantages including greater accessibility and the stability of the embouchure. In this thesis factors affecting the reproducibility of the embouchure of one such artificial mouth are investigated with reference to the measured resonances of the lips. Using these results, procedures and practical design improvements are suggested. Two examples of comparative studies of historic instruments are presented. In order to provide detailed information on the behaviour of the lips of brass players high speed digital photography is used to image the self-oscillating lipreed. Variation in the lip opening, over a wide range of notes and different players, is investigated, providing experimental evidence to aid the process of reining physical models of the behaviour of the brass player's lips. Particular attention is paid to the relationship between the area and height of the lip opening. Results suggest that during extremely loud playing the lip motion is qualitatively similar to that in quieter notes and therefore is not the origin of the dramatic increase in the levels of the high harmonics of the radiated sound. Investigation of the behaviour at the start of a note has shown evidence relating the lip motion to the transient in the mouthpiece pressure waveform. Comparison is made between the behaviour of the artificial lips and that of the lips of musicians providing evidence of the suitability of the use of the artificial mouth as a model for real brass players. Results show that although differences exist, particularly when looking at behaviour over a wide range of dynamic levels, the general features of behaviour are reproduced by the artificial mouth.

Subjects/Keywords: 780; Physics; Acoustics

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APA (6^th Edition):

Bromage, S. (2007). Visualisation of the lip motion of brass instrument players, and investigations of an artificial mouth as a tool for comparative studies of instruments. (Doctoral Dissertation). University of Edinburgh. Retrieved from http://hdl.handle.net/1842/1966

Chicago Manual of Style (16^th Edition):

Bromage, Seona. “Visualisation of the lip motion of brass instrument players, and investigations of an artificial mouth as a tool for comparative studies of instruments.” 2007. Doctoral Dissertation, University of Edinburgh. Accessed March 23, 2019. http://hdl.handle.net/1842/1966.

MLA Handbook (7^th Edition):

Bromage, Seona. “Visualisation of the lip motion of brass instrument players, and investigations of an artificial mouth as a tool for comparative studies of instruments.” 2007. Web. 23 Mar 2019.

Vancouver:

Bromage S. Visualisation of the lip motion of brass instrument players, and investigations of an artificial mouth as a tool for comparative studies of instruments. [Internet] [Doctoral dissertation]. University of Edinburgh; 2007. [cited 2019 Mar 23]. Available from: http://hdl.handle.net/1842/1966.

Council of Science Editors:

Bromage S. Visualisation of the lip motion of brass instrument players, and investigations of an artificial mouth as a tool for comparative studies of instruments. [Doctoral Dissertation]. University of Edinburgh; 2007. Available from: http://hdl.handle.net/1842/1966

The University of Alabama

29. Kavanaugh, Joshua Stephen. Dynamics of vacuum-sealed, double-leaf partitions.

Degree: 2016, The University of Alabama

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=10006857

► The goal of this research is to investigate the feasibility and potential effectiveness of using vacuum-sealed, double-leaf partitions for applications in noise control. Substantial… (more)

Subjects/Keywords: Mechanical engineering; Acoustics

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APA (6^th Edition):

Kavanaugh, J. S. (2016). Dynamics of vacuum-sealed, double-leaf partitions. (Thesis). The University of Alabama. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=10006857

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Kavanaugh, Joshua Stephen. “Dynamics of vacuum-sealed, double-leaf partitions.” 2016. Thesis, The University of Alabama. Accessed March 23, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=10006857.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Kavanaugh, Joshua Stephen. “Dynamics of vacuum-sealed, double-leaf partitions.” 2016. Web. 23 Mar 2019.

Vancouver:

Kavanaugh JS. Dynamics of vacuum-sealed, double-leaf partitions. [Internet] [Thesis]. The University of Alabama; 2016. [cited 2019 Mar 23]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10006857.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kavanaugh JS. Dynamics of vacuum-sealed, double-leaf partitions. [Thesis]. The University of Alabama; 2016. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10006857

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

30. Hirsch, Adam. Moments of being| The topology of timbre and memory as a compositional process.

Degree: 2016, Mills College

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=10117391

► This interdisciplinary study examines episodic memory and instrumental timbre as structural analogs, and explores the potential of their relationships within a compositional framework. The… (more)

Subjects/Keywords: Neurosciences; Music; Acoustics

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APA (6^th Edition):

Hirsch, A. (2016). Moments of being| The topology of timbre and memory as a compositional process. (Thesis). Mills College. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=10117391

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Hirsch, Adam. “Moments of being| The topology of timbre and memory as a compositional process.” 2016. Thesis, Mills College. Accessed March 23, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=10117391.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Hirsch, Adam. “Moments of being| The topology of timbre and memory as a compositional process.” 2016. Web. 23 Mar 2019.

Vancouver:

Hirsch A. Moments of being| The topology of timbre and memory as a compositional process. [Internet] [Thesis]. Mills College; 2016. [cited 2019 Mar 23]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10117391.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Hirsch A. Moments of being| The topology of timbre and memory as a compositional process. [Thesis]. Mills College; 2016. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10117391

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Open Access Theses and Dissertations