Embedded Speech Codec Based on Speex

Kamaruzzaman M, Taddei H. Embedded Speech Codec Based on Speex. In: AES Convention 116. Audio Engineering Society; 2004. Paper 6173. Available from: https://aes.org/publications/elibrary-page/?id=12700

@inproceedings{Kamaruzzaman2004_12700,
  author = {Kamaruzzaman, Md. and Taddei, Herve},
  title = {{Embedded Speech Codec Based on Speex}},
  booktitle = {AES Convention 116},
  note = {Paper 6173},
  year = {2004},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=12700}
}

TY  - CPAPER
TI  - Embedded Speech Codec Based on Speex
AU  - Kamaruzzaman, Md.
AU  - Taddei, Herve
T2  - AES Convention 116
M1  - Paper 6173
PY  - 2004
DA  - 2004/05/06
UR  - https://aes.org/publications/elibrary-page/?id=12700
PB  - Audio Engineering Society
LA  - en
AB  - Embedded speech coding technique is of interest for many applications like VoIP, Multimedia Broadcasting, Video Conferencing. We propose a CELP based embedded speech codec that is operable for both narrowband and wideband speech signals. Our three-layered embedded codec offers three bit-rates. This embedded codec is based on Speex codec. In our embedded speech codec, innovation vectors of the higher layers are embedded in the innovation vector of the lowest layer. All speech coding parameters but innovation vector are shared between lowest layer and higher layers. In our algorithm, higher bit rates are rewarded with better quality penalizing the lowest bit rate.
ER  -