An echo cancellation algorithm for operation with a digital speech coder in a single signal processor

Author

Roulier, Guy ; Galand, Claude

Author_Institution

IBM Lab., La Gaude, France

fYear

1988

fDate

11-14 Apr 1988

Firstpage

1628

Abstract

When introducing a delay in the telephone network, one is likely to hear an echo. Digital cancellers exist, but they need to be initialized. An implementation on a 10-MIPS (million instructions per second) signal processor is reported which uses the speech signal as a training signal while performing voice analysis and synthesis at the same time. The initialization is completed after 3 s of speech and covers a 32-ms window

Keywords

echo suppression; speech analysis and processing; telephone interference; 10 MIPS; digital speech coder; echo cancellation algorithm; initialization; single signal processor; telephone network; training signal; voice analysis; voice synthesis; Echo cancellers; Network synthesis; Performance analysis; Signal analysis; Signal processing; Signal processing algorithms; Speech analysis; Speech processing; Speech synthesis; Telephony;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1988. ICASSP-88., 1988 International Conference on

Conference_Location

New York, NY

ISSN

1520-6149

Type

conf

DOI

10.1109/ICASSP.1988.196923

Filename

196923

Link To Document

https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3003554