Analysis of two structures for combined acoustic echo cancellation and noise reduction

Author

Guelou, Yann ; Benamar, Abdelkrim ; Scalart, Pascal

Author_Institution

CNET, Lannion, France

Volume

2

fYear

1996

fDate

7-10 May 1996

Firstpage

637

Abstract

We address the problem of speech enhancement in the context of GSM hands-free radiotelephony where the signal to be transmitted is corrupted by background noise and echo signals. We propose possible schemes for combined acoustic echo cancellation (AEC) and noise reduction (NR) devices. Considering two AEC algorithms and one NR device, we show that the overall performance obtained by these schemes are greatly dependent on the intrinsic behaviour of the considered AEC algorithms. These results are confirmed by the informal listening tests presented

Keywords

acoustic noise; acoustic signal processing; cellular radio; echo suppression; noise abatement; radiotelephony; telephony; AEC algorithms; GSM hands-free radiotelephony; acoustic echo cancellation algorithms; background noise; echo signals; informal listening test; noise reduction devices; performance; speech enhancement; Acoustic devices; Algorithm design and analysis; Background noise; Echo cancellers; Filters; Microphones; Noise reduction; Signal processing; Signal to noise ratio; Speech enhancement;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996 IEEE International Conference on

Conference_Location

Atlanta, GA

ISSN

1520-6149

Print_ISBN

0-7803-3192-3

Type

conf

DOI

10.1109/ICASSP.1996.543201

Filename

543201