DocumentCode
2022847
Title
Tree coding combined with harmonic scaling of speech at 6.4 kbps
Author
Lee, Insung ; Gibson, Jerry D.
Author_Institution
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
Volume
2
fYear
1993
fDate
27-30 April 1993
Firstpage
600
Abstract
Tree coding is combined with time-domain harmonic scaling (TDHS) for speech coding at 6.4 kbit/s. A 2-to-1 TDHS compression is used and the coder is fully backward adaptive. Experiments on selecting window type, pitch extractor, code tree, and gain adaptation rule are reported. A novel backward adaptive pitch predictor greatly enhances performance. Paired comparison listening tests show quality equivalent to 6-bit log-pulse code modulation (PCM) at a sampling rate of 6400 samples/s.<>
Keywords
adaptive filters; data compression; harmonic analysis; speech coding; time-domain analysis; tree data structures; 6.4 kbit/s; backward adaptive pitch predictor; code tree; compression; gain adaptation rule; paired comparison listening tests; performance; speech coding; time-domain harmonic scaling;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech, and Signal Processing, 1993. ICASSP-93., 1993 IEEE International Conference on
Conference_Location
Minneapolis, MN, USA
ISSN
1520-6149
Print_ISBN
0-7803-7402-9
Type
conf
DOI
10.1109/ICASSP.1993.319381
Filename
319381
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