Echo Cancellation Techniques for Multimedia Applications - A Survey

TitleEcho Cancellation Techniques for Multimedia Applications - A Survey
Publication TypeTechnical Report
Year of Publication1996
AuthorsStorn, R.
Other Numbers1055
Keywordsacoustical echo, adaptive filters, echo cancellation, Full duplex communication

The problem of acoustical echo in a headset-free full duplex communication environment is explained and the potential solutions are sketched. The different methods for acoustic echo cancellation (AEC) via adaptive filters are outlined and their suitability for a 16-bit fixed point implementation on a digital signal processor (DSP) is evaluated. The current prototype for the ICSI Acoustic Echo Canceller (IAEC) which uses an allpass-based subband adaptive approach is introduced and directions for future work are given.

Bibliographic Notes

ICSI Technical Report TR-96-046

Abbreviated Authors

R. M. Storn

ICSI Publication Type

Technical Report