Stereophonic acoustic echo cancellation-an overview of the fundamental problem
- 1 August 1995
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Signal Processing Letters
- Vol. 2 (8), 148-151
- https://doi.org/10.1109/97.404129
Abstract
As teleconferencing systems evolve to an ever more lifelike and transparent audio/video medium, it will be necessary to incorporate multichannel audio, which at a minimum involves two channels, i.e., stereophonic sound. However, before full-duplex stereophonic teleconferencing can be deployed, the acoustic echo cancellation (AEC) problem must be solved in this regime. This paper draws attention to a fundamental problem of multichannel AEC that concerns the nonunique nature of the estimated receiving room impulse responses. Various potential solutions are discussed but are shown to be not entirely satisfactory.<>Keywords
This publication has 3 references indexed in Scilit:
- Acoustic echo cancellation for stereophonic teleconferencingThe Journal of the Acoustical Society of America, 1993
- Acoustic Echo Cancellation for Stereophonic TeleconferencingPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1991
- Silencing echoes on the telephone networkProceedings of the IEEE, 1980