Modelling the acoustics of fricative consonants using distributed noise sources with spatial and temporal correlation
Modelling the acoustics of fricative consonants using distributed noise sources with spatial and temporal correlation
Most existing computer models of noise sources in fricatives simulate either point sources or distributed sources composed of independent source elements. This paper describes a model that allows spatial and temporal correlations within a distributed source to be manipulated in a time-domain finite-difference model of vocal tract acoustics. Results from mechanical modelling experiments are used to validate the model where possible. Computer simulations using the model show that the sharpness of spectral zeros depends strongly on the source length and the correlation length of the source, and this is consistent with measurements of real speech.
speech production models, noise source models, fricative consonants, vocal tract acoustics
1-86408-971-0
CD-6
Shadle, Christine H.
d41e8c97-d8f9-41ca-a69a-4021e978f786
Ramsay, Gordon
087c05e7-ed04-4b58-9aa8-903844003796
2003
Shadle, Christine H.
d41e8c97-d8f9-41ca-a69a-4021e978f786
Ramsay, Gordon
087c05e7-ed04-4b58-9aa8-903844003796
Shadle, Christine H. and Ramsay, Gordon
(2003)
Modelling the acoustics of fricative consonants using distributed noise sources with spatial and temporal correlation.
6th International Seminar on Speech Production, Manly, Sydney, Australia.
07 - 10 Dec 2003.
.
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Conference or Workshop Item
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Abstract
Most existing computer models of noise sources in fricatives simulate either point sources or distributed sources composed of independent source elements. This paper describes a model that allows spatial and temporal correlations within a distributed source to be manipulated in a time-domain finite-difference model of vocal tract acoustics. Results from mechanical modelling experiments are used to validate the model where possible. Computer simulations using the model show that the sharpness of spectral zeros depends strongly on the source length and the correlation length of the source, and this is consistent with measurements of real speech.
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Published date: 2003
Additional Information:
Event Dates: 7-10 December 2003
Venue - Dates:
6th International Seminar on Speech Production, Manly, Sydney, Australia, 2003-12-07 - 2003-12-10
Keywords:
speech production models, noise source models, fricative consonants, vocal tract acoustics
Organisations:
Electronics & Computer Science
Identifiers
Local EPrints ID: 259161
URI: http://eprints.soton.ac.uk/id/eprint/259161
ISBN: 1-86408-971-0
PURE UUID: 24fee205-020d-488f-9269-63fbdbded757
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Date deposited: 14 Mar 2004
Last modified: 14 Mar 2024 06:20
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Contributors
Author:
Christine H. Shadle
Author:
Gordon Ramsay
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