Acoustic Channel Decorrelation with Phase Modification for Stereo Acoustic Echo Cancellation

Jeong JH, Jeong SY, Lee WJ, Park JE, Kim JS, Kim J. Acoustic Channel Decorrelation with Phase Modification for Stereo Acoustic Echo Cancellation. In: AES Convention 131. Audio Engineering Society; 2011. Paper 8519. Available from: https://aes.org/publications/elibrary-page/?id=16045

@inproceedings{Jeong2011_16045,
  author = {Jeong, Jae-Hoon and Jeong, So-Young and Lee, Woo-Jeong and Park, Jung-Eun and Kim, Jeong-Su and Kim, Jongje},
  title = {{Acoustic Channel Decorrelation with Phase Modification for Stereo Acoustic Echo Cancellation}},
  booktitle = {AES Convention 131},
  note = {Paper 8519},
  year = {2011},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=16045}
}

TY  - CPAPER
TI  - Acoustic Channel Decorrelation with Phase Modification for Stereo Acoustic Echo Cancellation
AU  - Jeong, Jae-Hoon
AU  - Jeong, So-Young
AU  - Lee, Woo-Jeong
AU  - Park, Jung-Eun
AU  - Kim, Jeong-Su
AU  - Kim, Jongje
T2  - AES Convention 131
M1  - Paper 8519
PY  - 2011
DA  - 2011/10/06
UR  - https://aes.org/publications/elibrary-page/?id=16045
PB  - Audio Engineering Society
LA  - en
AB  - In this paper, we propose a novel acoustic channel de-correlation method, which prevents from poor convergence in stereophonic echo cancellation. In order to minimize audio quality degradation while maximizing channel de-correlation, the proposed method provides a sub-band phase modification of each channel, which depends on the amount of inter-channel phase difference so that redundant phase alteration is avoided. In addition, we introduce a phase control parameter for each sub-band to preserve perceptual stereo image of each channel. The performances of the proposed method are verified with MUSHRA subjective audio quality test, impulse response misalignment and echo return loss enhancement. The results show that the proposed method has a good de-correlation performance while minimizing signal distortion and stereo image change.
ER  -