With the trend of merging various networks, a need arises to provide transcoding between different speech coding formats. Presently this means cross tandeming the two coders, but it results in both quality loss and extra delay. A possible alternative is using a bit-stream mapping approach that directly converts parameter values. This paper proposes a bit-stream mapping method between ITU-T Recommendation G.729 and TIA IS-641. Informal listening tests and PSQM scores show that the proposed method has better quality than the cross tandeming method in both clean and frame erased channel environments.
|Title of host publication||2000 IEEE Workshop on Speech Coding - Proceedings|
|Subtitle of host publication||Meeting the Challenges of the New Millennium|
|Publisher||Institute of Electrical and Electronics Engineers Inc.|
|Number of pages||3|
|ISBN (Electronic)||0780364163, 9780780364165|
|Publication status||Published - 2000|
|Event||IEEE Workshop on Speech Coding - Delavan, United States|
Duration: 2000 Sep 17 → 2000 Sep 20
|Name||2000 IEEE Workshop on Speech Coding - Proceedings: Meeting the Challenges of the New Millennium|
|Other||IEEE Workshop on Speech Coding|
|Period||00/9/17 → 00/9/20|
Bibliographical notePublisher Copyright:
© 2000 IEEE.
All Science Journal Classification (ASJC) codes
- Signal Processing