Efficient Low Frequency Echo Cancellation Using Sparse Adaptive FIR Filters

Favrot A, Faller C. Efficient Low Frequency Echo Cancellation Using Sparse Adaptive FIR Filters. In: AES Convention 136. Audio Engineering Society; 2014. Paper 9033. Available from: https://aes.org/publications/elibrary-page/?id=17180

@inproceedings{Favrot2014_17180,
  author = {Favrot, Alexis and Faller, Christof},
  title = {{Efficient Low Frequency Echo Cancellation Using Sparse Adaptive FIR Filters}},
  booktitle = {AES Convention 136},
  note = {Paper 9033},
  year = {2014},
  month = apr,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=17180}
}

TY  - CPAPER
TI  - Efficient Low Frequency Echo Cancellation Using Sparse Adaptive FIR Filters
AU  - Favrot, Alexis
AU  - Faller, Christof
T2  - AES Convention 136
M1  - Paper 9033
PY  - 2014
DA  - 2014/04/06
UR  - https://aes.org/publications/elibrary-page/?id=17180
PB  - Audio Engineering Society
LA  - en
AB  - It is shown how finite impulse response (FIR) filtering and filter adaptation can be implemented with reduced computational complexity when applied to signals containing only low frequencies. A sparse adaptive filter (with only every Mth coefficient being non-zero) with reduced adaptation rate achieves a similar result as a conventional adaptive filter but with lower computational complexity. An echo control scheme based on a sparse adaptive filter is described. Low frequency echoes are cancelled followed by echo suppression over all frequencies.
ER  -