A New Low Bit Rate Speech Coding Scheme for Mixed Content

Annadana R, Ferreira AJS, Sinha D. A New Low Bit Rate Speech Coding Scheme for Mixed Content. In: AES Convention 120. Audio Engineering Society; 2006. Paper 6803. Available from: https://aes.org/publications/elibrary-page/?id=13607

@inproceedings{Annadana2006_13607,
  author = {Annadana, Raghuram and Ferreira, Aníbal J. S. and Sinha, Deepen},
  title = {{A New Low Bit Rate Speech Coding Scheme for Mixed Content}},
  booktitle = {AES Convention 120},
  note = {Paper 6803},
  year = {2006},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=13607}
}

TY  - CPAPER
TI  - A New Low Bit Rate Speech Coding Scheme for Mixed Content
AU  - Annadana, Raghuram
AU  - Ferreira, Aníbal J. S.
AU  - Sinha, Deepen
T2  - AES Convention 120
M1  - Paper 6803
PY  - 2006
DA  - 2006/05/06
UR  - https://aes.org/publications/elibrary-page/?id=13607
PB  - Audio Engineering Society
LA  - en
AB  - Speech coding is a very mature research area and many coding schemes are available that provide speech qualities ranging from highly intelligible synthetic speech at about 2 kbit/s, till wideband natural speech at about 16 kbit/s. However, emerging application scenarios such as information services on broadcast radio are eliciting additional concurrent challenges not easily addressed by current speech coding technology, namely the need to code mixed audio material, the need to permit flexible bitrate coding configurations, the need to scale effectively in quality in the range 2-8 kbit/s, and the need to offer pleasant natural sound. In this paper we present a new very low rate speech/audio coding technology addressing those concurrent challenges thanks to the use of innovative approaches regarding accurate reconstruction of harmonic complexes, optimal coding of the excitation, efficient side information coding, and suitable combination of new bandwidth extension techniques. The structure of the speech/audio coder will be detailed and its performance in the range 2.4-12 kbit/s will be illustrated and compared to that of reference coders.
ER  -