G.711.1: A wideband extension to ITU-T G.711

This paper describes a scalable coder - G.711.1 - which has been standardized by ITU-T for wideband telephony and voice over IP applications. The main feature of this extension is to give wideband scalability to ITU-T G.711, the most widely deployed speech codec. G.711.1 is designed to achieve a very short delay and low complexity. ITU-T evaluation results show that the codec fulfils all the requirements defined in the terms of reference.

[1]  Balázs Kövesi,et al.  An 64-80-96 kbit/s scalable wideband speech coding candidate for ITU-T G.711-WB standardization , 2008, 2008 IEEE International Conference on Acoustics, Speech and Signal Processing.

[2]  Roch Lefebvre,et al.  Noise shaping in an ITU-T G.711-interoperable embedded codec , 2008, 2008 16th European Signal Processing Conference.

[3]  Balázs Kövesi,et al.  A low complexity packet loss concealment algorithm for ITU-T G.722 , 2008, 2008 IEEE International Conference on Acoustics, Speech and Signal Processing.

[4]  Takeshi Mori,et al.  A G.711 Embedded Wideband Speech Coding for VoIP Conferences , 2006, IEICE Trans. Inf. Syst..

[5]  Pascal Scalart,et al.  A two-step noise reduction technique , 2004, 2004 IEEE International Conference on Acoustics, Speech, and Signal Processing.

[6]  Takeshi Mori,et al.  A wideband speech and audio coding candidate for ITU-T G.711WBE standardization , 2008, 2008 IEEE International Conference on Acoustics, Speech and Signal Processing.