Extraction of Weak Background Transients from Audio Signals

Grenier Y, David B. Extraction of Weak Background Transients from Audio Signals. In: AES Convention 114. Audio Engineering Society; 2003. Paper 5774. Available from: https://aes.org/publications/elibrary-page/?id=12571

@inproceedings{Grenier2003_12571,
  author = {Grenier, Yves and David, Bertrand},
  title = {{Extraction of Weak Background Transients from Audio Signals}},
  booktitle = {AES Convention 114},
  note = {Paper 5774},
  year = {2003},
  month = mar,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=12571}
}

TY  - CPAPER
TI  - Extraction of Weak Background Transients from Audio Signals
AU  - Grenier, Yves
AU  - David, Bertrand
T2  - AES Convention 114
M1  - Paper 5774
PY  - 2003
DA  - 2003/03/06
UR  - https://aes.org/publications/elibrary-page/?id=12571
PB  - Audio Engineering Society
LA  - en
AB  - Extracting a weak audio signal buried below a stronger one is a difficult task that may be encountered in forensic applications. Extraction of the background signal is made difficult by the signal-to-noise which is clearly negative. Apart from this difficulty, the problem would look like the problem of separating different components from an audio signal. We will investigate the possibility of using separation techniques for this extraction, based upon harmonic models of the stronger signal. We will compare theoretically and practically two approaches: in the first one, estimation of harmonic models is followed by subtraction of the harmonic signal, in the second one, high resolution tracking of damped sinusoids allows synthesis of each component after sorting the individual patterns.
ER  -