Dynamic Bit-Rate Adaptation for Speech and Audio

van Schijndel NH, Gros L, van de Par S. Dynamic Bit-Rate Adaptation for Speech and Audio. In: AES Convention 123. Audio Engineering Society; 2007. Paper 7288. Available from: https://aes.org/publications/elibrary-page/?id=14345

@inproceedings{vanSchijndel2007_14345,
  author = {van Schijndel, Nicolle H. and Gros, Laetitia and van de Par, Steven},
  title = {{Dynamic Bit-Rate Adaptation for Speech and Audio}},
  booktitle = {AES Convention 123},
  note = {Paper 7288},
  year = {2007},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=14345}
}

TY  - CPAPER
TI  - Dynamic Bit-Rate Adaptation for Speech and Audio
AU  - van Schijndel, Nicolle H.
AU  - Gros, Laetitia
AU  - van de Par, Steven
T2  - AES Convention 123
M1  - Paper 7288
PY  - 2007
DA  - 2007/10/06
UR  - https://aes.org/publications/elibrary-page/?id=14345
PB  - Audio Engineering Society
LA  - en
AB  - Many audio and speech transmission applications have to deal with highly time-varying channel capacities, making dynamic adaptation to bit rate an important issue. This study investigates such adaptation using a coder that is driven by rate-distortion optimization mechanisms, always coding the full signal bandwidth. For perceptual evaluation, the continuous quality evaluation methodology is used, which has specifically been designed for dynamic quality testing. Results show latency and smoothing effects in the judged sound quality, but no quality penalty for the switching between quality levels; the overall quality using adaptation is comparable to using the average available bit rate. Thus, dynamic bit-rate adaptation has a clear benefit as compared to always using the lowest guaranteed available bit rate.
ER  -