David T . Chappell | Stanford University (original) (raw)
Experienced in speech and audio processing, computer programming, algorithm development, and quantum computing.B.S. in computer science with a minor in physicsM.S. in electrical engineering, specialized in computer hardwareEngineer Degree in electrical engineering, specialized in space systems engineeringPh.D. electrical engineering, specialized in signal processing (speech processing)
Supervisors: Bruce Lusignan and John H. L. Hansen
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National Institute of Technology, Calicut
Graduate Center of the City University of New York
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Papers by David T . Chappell
International Conference on Acoustics, Speech, and Signal Processing, 1998
This paper describes a new auditory-based distance measure intended for use in a concatenated syn... more This paper describes a new auditory-based distance measure intended for use in a concatenated synthesis technique wherein the time- and frequency-domain characteristics are used to perform natural-sounding speaker synthesis. Whereas most concatenation systems use large databases (often +100,000 units), we begin from a small, limited database (approx. 400 units) and use a new spectral distortion measure to aid in the
This study presents a new auditory-based distance measure with application to concatenative speec... more This study presents a new auditory-based distance measure with application to concatenative speech synthesis. This measure employs the Carney auditory model to produce a feature vector related to auditory perception. For concatenative synthesis, the new measure is employed to assess perceived discontinuities at segment transitions. Evaluations using a restricted data base environment show that the new measure can be effective in improving speech synthesis performance.
... Authors, David Thomas Chappell, Supervisors, John H. Hansen, Publisher, Duke University Durha... more ... Authors, David Thomas Chappell, Supervisors, John H. Hansen, Publisher, Duke University Durham, NC, USA. ... Collaborative Colleagues: David Thomas Chappell: colleagues. John H. Hansen: colleagues. The ACM Portal is published by the Association for Computing Machinery ...
International Conference on Acoustics, Speech, and Signal Processing, 1998
This paper describes a new auditory-based distance measure intended for use in a concatenated syn... more This paper describes a new auditory-based distance measure intended for use in a concatenated synthesis technique wherein the time- and frequency-domain characteristics are used to perform natural-sounding speaker synthesis. Whereas most concatenation systems use large databases (often +100,000 units), we begin from a small, limited database (approx. 400 units) and use a new spectral distortion measure to aid in the
This study presents a new auditory-based distance measure with application to concatenative speec... more This study presents a new auditory-based distance measure with application to concatenative speech synthesis. This measure employs the Carney auditory model to produce a feature vector related to auditory perception. For concatenative synthesis, the new measure is employed to assess perceived discontinuities at segment transitions. Evaluations using a restricted data base environment show that the new measure can be effective in improving speech synthesis performance.
... Authors, David Thomas Chappell, Supervisors, John H. Hansen, Publisher, Duke University Durha... more ... Authors, David Thomas Chappell, Supervisors, John H. Hansen, Publisher, Duke University Durham, NC, USA. ... Collaborative Colleagues: David Thomas Chappell: colleagues. John H. Hansen: colleagues. The ACM Portal is published by the Association for Computing Machinery ...