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UBC Theses and Dissertations
Automatic measurement and modelling of contact sounds Richmond, Joshua Lee
Abstract
Sound plays an important role in our everyday interactions with the environment. Sound models enable virtual objects to produce realistic sounds. The manual creation of sound models from real objects is tedious and inaccurate. A brief review of sound models is presented, with details of a sound model for contact sounds. This thesis documents the development of a system for the automatic acquisition of sound models. The system is composed of four modules: a sound acquisition device, an asynchronous data server, an algorithm for computing prototypical sound models and an adaptive sampling algorithm. A description of each module and its requirements is included. Implementations of each module are tested and explained. Results of typical data collections are discussed. Sound models for a calibration object, brass vase, plastic speaker and toy drum are constructed using the system. Comparisons of the sound models to the original recordings are displayed for each object. Under ideal circumstances the system produces accurate sound models. Environmental noise, however, decreases the accuracy of the estimation technique. An evaluation of the parameter estimation algorithm confirms this observation. Many opportunities exist for future work on this system. Ideas for improvements and future investigations are suggested.
Item Metadata
Title |
Automatic measurement and modelling of contact sounds
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Creator | |
Publisher |
University of British Columbia
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Date Issued |
2000
|
Description |
Sound plays an important role in our everyday interactions with the environment.
Sound models enable virtual objects to produce realistic sounds. The manual
creation of sound models from real objects is tedious and inaccurate. A brief review
of sound models is presented, with details of a sound model for contact sounds.
This thesis documents the development of a system for the automatic acquisition
of sound models. The system is composed of four modules: a sound acquisition
device, an asynchronous data server, an algorithm for computing prototypical sound
models and an adaptive sampling algorithm. A description of each module and its
requirements is included. Implementations of each module are tested and explained.
Results of typical data collections are discussed. Sound models for a calibration
object, brass vase, plastic speaker and toy drum are constructed using the
system. Comparisons of the sound models to the original recordings are displayed
for each object.
Under ideal circumstances the system produces accurate sound models. Environmental
noise, however, decreases the accuracy of the estimation technique. An
evaluation of the parameter estimation algorithm confirms this observation.
Many opportunities exist for future work on this system. Ideas for improvements
and future investigations are suggested.
|
Extent |
11869334 bytes
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Genre | |
Type | |
File Format |
application/pdf
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Language |
eng
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Date Available |
2009-07-13
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Provider |
Vancouver : University of British Columbia Library
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Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
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DOI |
10.14288/1.0051315
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URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
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Graduation Date |
2000-11
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Campus | |
Scholarly Level |
Graduate
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Aggregated Source Repository |
DSpace
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Item Media
Item Citations and Data
Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.