Persistent Link:
http://hdl.handle.net/10150/291562
Title:
Noisy channel performance of trellis coded quantization
Author:
Sriram, Parthasarathy, 1967-
Issue Date:
1990
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
Low delay speech coding at 16 kbits/sec has received a tremendous amount of attention. One recently proposed scheme that offers excellent performance with buffering delays less than 5 msec is Trellis Coded Quantization (TCQ). The primary objective of this thesis is to evaluate the performance of TCQ in the presence of channel errors. When feedback-free encoding circuits are employed, error propagation is not a serious problem. For encoding sampled speech, segmental signal-to-noise ratios in excess of 20 dB are obtained. Performance comparisons are made using a fixed predictor and four different adaptive predictors for both error-free and noisy channels. Informal listening tests reveal that the reconstructed speech is of "near toll quality" and is almost indistinguishable from the original speech.
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Engineering, Electronics and Electrical.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Electrical and Computer Engineering
Degree Grantor:
University of Arizona
Advisor:
Marcellin, Michael W.

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleNoisy channel performance of trellis coded quantizationen_US
dc.creatorSriram, Parthasarathy, 1967-en_US
dc.contributor.authorSriram, Parthasarathy, 1967-en_US
dc.date.issued1990en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractLow delay speech coding at 16 kbits/sec has received a tremendous amount of attention. One recently proposed scheme that offers excellent performance with buffering delays less than 5 msec is Trellis Coded Quantization (TCQ). The primary objective of this thesis is to evaluate the performance of TCQ in the presence of channel errors. When feedback-free encoding circuits are employed, error propagation is not a serious problem. For encoding sampled speech, segmental signal-to-noise ratios in excess of 20 dB are obtained. Performance comparisons are made using a fixed predictor and four different adaptive predictors for both error-free and noisy channels. Informal listening tests reveal that the reconstructed speech is of "near toll quality" and is almost indistinguishable from the original speech.en_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.subjectEngineering, Electronics and Electrical.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineElectrical and Computer Engineeringen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorMarcellin, Michael W.en_US
dc.identifier.proquest1341498en_US
dc.identifier.bibrecord.b26354792en_US
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