A Real Time Implementation of a Novel Psychoacoustic Approach for Stereo Acoustic Echo Cancellation

Cecchi S, Peretti P, Piazza F, Romoli L. A Real Time Implementation of a Novel Psychoacoustic Approach for Stereo Acoustic Echo Cancellation. In: AES Convention 129. Audio Engineering Society; 2010. Paper 8199. Available from: https://aes.org/publications/elibrary-page/?id=15621

@inproceedings{Cecchi2010_15621,
  author = {Cecchi, Stefania and Peretti, Paolo and Piazza, Francesco and Romoli, Laura},
  title = {{A Real Time Implementation of a Novel Psychoacoustic Approach for Stereo Acoustic Echo Cancellation}},
  booktitle = {AES Convention 129},
  note = {Paper 8199},
  year = {2010},
  month = nov,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=15621}
}

TY  - CPAPER
TI  - A Real Time Implementation of a Novel Psychoacoustic Approach for Stereo Acoustic Echo Cancellation
AU  - Cecchi, Stefania
AU  - Peretti, Paolo
AU  - Piazza, Francesco
AU  - Romoli, Laura
T2  - AES Convention 129
M1  - Paper 8199
PY  - 2010
DA  - 2010/11/06
UR  - https://aes.org/publications/elibrary-page/?id=15621
PB  - Audio Engineering Society
LA  - en
AB  - Stereo acoustic echo cancellers (SAECs) are used in teleconferencing systems to reduce undesired echoes originating from coupling between loudspeakers and microphones. The main problem of this approach is related to the issue of uniquely identifying each pair of room acoustic paths, due to high interchannel coherence. In this paper, a real time implementation of a novel approach for SAEC based on the psychoacoustic effect of missing fundamental is proposed. An adaptive algorithm is employed to track and remove the fundamental frequency of one of the two channels, ensuring a continuous decorrelation without affecting the stereo quality. Several tests are presented taking into account a real time implementation on a DSP framework in order to confirm its effectiveness.
ER  -