| Conference/Proceedings | 15th European Signal Processing Conference (EUSIPCO 2007) |
| Start date | 03.09.2007 |
| End date | 07.09.2007 |
| Address | Poznań, Poland |
| Pages | 1377-1381 |
| Author(s) | Kai Clüver, Jan Weil, Thomas Sikora |
| Title | Multiple-Description Coding of Speech using Forward Error Correction Codes |
| Abstract | A flexible framework is presented which performs multiple-description coding of speech signals with two or more channels. The use of forward error correction codes together with a layered speech codec permits encoding into more than two descriptions without excessive increase in complexity. Results of a formal MOS listening test reveal considerable improvements in robustness as long as base layer quality and the number of descriptions are chosen appropriately. A modification of the original encoding scheme allows trading off bit rate savings against robustness to extreme channel conditions. Different coding schemes can easily be compared using a real-time demonstrator software. |
| Key words | Multiple-Description Coding, Speech Coding, Forward Error Correction |
| File | 1081Cluever2007.pdf |