NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Vector Adaptive/Predictive Encoding Of SpeechVector adaptive/predictive technique for digital encoding of speech signals yields decoded speech of very good quality after transmission at coding rate of 9.6 kb/s and of reasonably good quality at 4.8 kb/s. Requires 3 to 4 million multiplications and additions per second. Combines advantages of adaptive/predictive coding, and code-excited linear prediction, yielding speech of high quality but requires 600 million multiplications and additions per second at encoding rate of 4.8 kb/s. Vector adaptive/predictive coding technique bridges gaps in performance and complexity between adaptive/predictive coding and code-excited linear prediction.
Document ID
19890000435
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Chen, Juin-Hwey
(California Univ.)
Gersho, Allen
(California Univ.)
Date Acquired
August 14, 2013
Publication Date
September 1, 1989
Publication Information
Publication: NASA Tech Briefs
Volume: 13
Issue: 9
ISSN: 0145-319X
Subject Category
Electronic Systems
Report/Patent Number
NPO-17230
Accession Number
89B10435
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Available Downloads

There are no available downloads for this record.
No Preview Available