Title :
Predictive trellis coded quantization of speech
Author :
Marcellin, Michael W. ; Fischer, Thomas R. ; Gibson, Jerry D.
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
Trellis coded quantization is incorporated into a predictive coding structure for encoding sampled speech. Systems are developed using fixed prediction/fixed residual encoding, fixed prediction/adaptive residual encoding, and adaptive prediction/adaptive residual encoding. For a fully adaptive 16 kbps speech coding system, segmental signal-to-noise ratios in the range of 17.5 to 20.2 dB are obtained for a variety of speakers and test sentences. Reconstructed speech obtained from this system can be described as being of excellent communications quality
Keywords :
encoding; filtering and prediction theory; speech analysis and processing; 16 kbit/s; adaptive prediction/adaptive residual encoding; fixed prediction/adaptive residual encoding; fixed prediction/fixed residual encoding; predictive coding; segmental signal-to-noise ratios; speech coding; trellis coded quantization; Constraint theory; Convolutional codes; Design optimization; Encoding; Hypercubes; Modulation coding; Quantization; Rate distortion theory; Speech; Viterbi algorithm;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1988. ICASSP-88., 1988 International Conference on
Conference_Location :
New York, NY
DOI :
10.1109/ICASSP.1988.196561
