DocumentCode
3564084
Title
A robust 1200 bps voice coder based on vector quantization of line spectral frequencies
Author
Lu, Shan ; Baraniecki, Marion
Author_Institution
COMSAT Lab., Clarksburg, MD, USA
Volume
1
fYear
1997
Firstpage
522
Abstract
This paper describes a 1200 bps voice codec that is based on a 10th-order linear prediction analysis, split vector quantization of line spectral frequencies, and differential pitch quantization. Robust codebooks and error protection and concealment techniques are used to minimize the effect of channel errors. Listening tests show that the codec has a high degree of speech intelligibility and speaker recognizability with natural voice quality
Keywords
linear predictive coding; speaker recognition; speech codecs; speech coding; speech intelligibility; vector quantisation; vocoders; 10th-order linear prediction analysis; 1200 bit/s; channel errors; differential pitch quantization; error concealment; error protection; line spectral frequencies; listening tests; natural voice quality; robust codebooks; speaker recognizability; speech intelligibility; split vector quantization; voice codec; voice coder; Bandwidth; Books; Frequency; Linear predictive coding; Protection; Robustness; Speech analysis; Speech codecs; Speech coding; Vector quantization;
fLanguage
English
Publisher
ieee
Conference_Titel
MILCOM 97 Proceedings
Print_ISBN
0-7803-4249-6
Type
conf
DOI
10.1109/MILCOM.1997.648781
Filename
648781
Link To Document