Noisy channel performance of trellis coded quantization
| dc.contributor.advisor | Marcellin, Michael W. | en_US |
| dc.contributor.author | Sriram, Parthasarathy, 1967- | |
| dc.creator | Sriram, Parthasarathy, 1967- | en_US |
| dc.date.accessioned | 2013-05-16T09:30:46Z | |
| dc.date.available | 2013-05-16T09:30:46Z | |
| dc.date.issued | 1990 | en_US |
| dc.identifier.uri | http://hdl.handle.net/10150/291562 | |
| dc.description.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. | |
| dc.language.iso | en_US | en_US |
| dc.publisher | The University of Arizona. | en_US |
| dc.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. | en_US |
| dc.subject | Engineering, Electronics and Electrical. | en_US |
| dc.title | Noisy channel performance of trellis coded quantization | en_US |
| dc.type | text | en_US |
| dc.type | Thesis-Reproduction (electronic) | en_US |
| thesis.degree.grantor | University of Arizona | en_US |
| thesis.degree.level | masters | en_US |
| dc.identifier.proquest | 1341498 | en_US |
| thesis.degree.discipline | Graduate College | en_US |
| thesis.degree.discipline | Electrical and Computer Engineering | en_US |
| thesis.degree.name | M.S. | en_US |
| dc.identifier.bibrecord | .b26354792 | en_US |
| refterms.dateFOA | 2018-05-26T02:35:25Z | |
| html.description.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. |
