An Efficient Algorithm for Clipping Detection and Declipping Audio

Laguna C, Lerch A. An Efficient Algorithm for Clipping Detection and Declipping Audio. In: AES Convention 141. Audio Engineering Society; 2016. Paper 9682. Available from: https://aes.org/publications/elibrary-page/?id=18486

@inproceedings{Laguna2016_18486,
  author = {Laguna, Christopher and Lerch, Alexander},
  title = {{An Efficient Algorithm for Clipping Detection and Declipping Audio}},
  booktitle = {AES Convention 141},
  note = {Paper 9682},
  year = {2016},
  month = sep,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=18486}
}

TY  - CPAPER
TI  - An Efficient Algorithm for Clipping Detection and Declipping Audio
AU  - Laguna, Christopher
AU  - Lerch, Alexander
T2  - AES Convention 141
M1  - Paper 9682
PY  - 2016
DA  - 2016/09/06
UR  - https://aes.org/publications/elibrary-page/?id=18486
PB  - Audio Engineering Society
LA  - en
AB  - We present an algorithm for end to end declipping, which includes clipping detection and the replacement of clipped samples. To detect regions of clipping, we analyze the signal’s amplitude histogram and the shape of the signal in the time-domain. The sample replacement algorithm uses a two-pass approach: short regions of clipping are replaced in the time-domain and long regions of clipping are replaced in the frequency-domain. The algorithm is robust against different types of clipping and is efficient compared to existing approaches. The algorithm has been implemented in an open source JavaScript client-side web application. Clipping detection is shown to give an f-measure of 0.92 and is robust to the clipping level.
ER  -