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Author Marcellin, M.W. ♦ Fischer, T.R. ♦ Gibson, J.D.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1974
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Electricity & electronics
Subject Keyword Quantization ♦ Encoding ♦ Speech coding ♦ Modulation coding ♦ Predictive coding ♦ Predictive models ♦ Signal to noise ratio ♦ System testing ♦ History ♦ Rate-distortion
Abstract Trellis-coded quantization (TCQ) is incorporated into a predictive coding structure for encoding sampled speech. The modest complexity of the resulting structure is seen to be a direct consequence of the TCQ formulation. Simulation results are presented for systems using fixed-prediction/fixed-residual encoding, fixed-prediction/adaptive-residual encoding, and adaptive-prediction/adaptive-residual encoding. The performance of predictive TCQ (PTCQ) is compared to that of other waveform coders, and the effects of channel errors on PTCQ performance are discussed. For a fully adaptive 16-kb/s speech coding system, segmental signal-to-noise ratios in the range of 19.1-21.9 dB are obtained for a variety of speakers and test sentences. Reconstructed speech obtained from this system is of excellent communication quality.<<ETX>>
Description Author affiliation :: Dept. of Electr. & Comput. Eng., Arizona Univ., Tucson, AZ, USA
ISSN 00963518
Education Level UG and PG
Learning Resource Type Article
Publisher Date 1990-01-01
Publisher Place U.S.A.
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Volume Number 38
Issue Number 1
Size (in Bytes) 1.04 MB
Page Count 10
Starting Page 46
Ending Page 55


Source: IEEE Xplore Digital Library