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The Acoustic Echo Cancellation for Hands-free Communicator

Mladen Maletić
Dubravko Miljković

Sažetak

The control of acoustic feedback has an important function in speech processing systems, whenever the microphone picks up the audio signal radiated by loudspeaker and its reflection from the enclosure. The users are annoyed by listening to their own speech delayed by the round-trip time of the hands free communicator. This paper compares convergence properties of two FIR filter adaptation algorithms used in echo cancellation. Beside base algorithms, advanced and improved versions that include adaptive step size are considered.

Ključne riječi

convergence; FIR filter; adaptation; echo cancellation; feedback; LEM system

Hrčak ID:

4410

URI

https://hrcak.srce.hr/4410

Datum izdavanja:

3.5.2006.

Podaci na drugim jezicima: hrvatski

Posjeta: 2.727 *