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Informed source separation of underdetermined instantaneous stereo mixtures using source index embedding
| Content Provider | Hyper Articles en Ligne (HAL) |
|---|---|
| Author | Parvaix, Mathieu Girin, Laurent |
| Copyright Year | 2010 |
| Abstract | In this paper, we address the issue of under-determined source separation of non-stationary audio sources from a stereo (i.e. 2-channel) linear instantaneous mixture. This problem is addressed with a specific coder-decoder configuration. At the coder, source signals are assumed to be available before the mixing is processed. A time-frequency (TF) analysis of each source enables to select the one or two predominant sources (among I>2) in each TF region, and a corresponding source(s) index code is imperceptibly embedded into the mix signals using a watermarking technique. At the decoder level, where the original sources signals are unknown, the extraction of the watermark enables to locally reduce the under-determined configuration to an (over)determined configuration. Sources signals can then be estimated using a classical (over)determined separation technique. Thereby several instruments or voice signals can be separated from stereo mixtures, enabling separate manipulation of the source signals during restitution (i.e. remastering). |
| Related Links | https://hal.science/hal-00486804/file/icassp10_MP.pdf |
| Conference Proceedings | Proceedings of IEEE International Conference on Acoustics |
| Language | English |
| Publisher | HAL CCSD |
| Publisher Date | 2010-01-01 |
| Access Restriction | Open |
| Subject Keyword | watermarking audio processing speech processing under-determined source separation remastering |
| Content Type | Text |
| Resource Type | Conference Proceedings |
| Subject | Physics and Astronomy Computer Science |
