By Jacob Benesty,Constantin Paleologu,Tomas Gänsler,Silviu Ciochină

Single-channel hands-free teleconferencing platforms have gotten well known. that allows you to improve the verbal exchange caliber of those structures, progressively more stereophonic sound units with loudspeakers and microphones are deployed. as a result of coupling among loudspeakers and microphones, there is robust echoes, which make real-time verbal exchange very tough. the way we all know to cancel those echoes is through a stereo acoustic echo canceller (SAEC), which might be modelled as a two-input/two-output process with actual random variables. during this paintings, the authors recast this challenge right into a single-input/single-output procedure with advanced random variables due to the commonly linear version. From this new handy formula, they re-derive an important elements of a SAEC, together with id of the echo paths with adaptive filters, double-talk detection, and suppression.

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