DocumentCode
754866
Title
Tree-Encoding of Speech Using the (M, L)-Algorithm and Adaptive Quantization
Author
Jayant, N.S. ; Christensen, S.A.
Author_Institution
Bell Labs., Murray Hill, NJ
Volume
26
Issue
9
fYear
1978
fDate
9/1/1978 12:00:00 AM
Firstpage
1376
Lastpage
1379
Abstract
This paper shows the utility of using adaptive quantizers in the tree-encoding of speech waveforms based on the ( 
) algorithm [1]. Resulting adaptive differential PCM (ADPCM) and adaptive delta modulation (ADM) encoders, with time-invariant prediction networks, can provide useful speech outputs at bit rates in the order of 24 kbits/s; at 16 kbits/s, on the other hand, the encoders exhibit clearly perceptible amounts of quantization noise.
) algorithm [1]. Resulting adaptive differential PCM (ADPCM) and adaptive delta modulation (ADM) encoders, with time-invariant prediction networks, can provide useful speech outputs at bit rates in the order of 24 kbits/s; at 16 kbits/s, on the other hand, the encoders exhibit clearly perceptible amounts of quantization noise.Keywords
Adaptive coding; DPCM coding/decoding; Delta modulation, coding/decoding; Speech coding; Tree codes; Bit rate; Delta modulation; Encoding; Information rates; Instruments; Phase change materials; Propagation delay; Quantization; Sampling methods; Speech enhancement;
fLanguage
English
Journal_Title
Communications, IEEE Transactions on
Publisher
ieee
ISSN
0090-6778
Type
jour
DOI
10.1109/TCOM.1978.1094232
Filename
1094232
Link To Document