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

Abstract

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 complex-ity. ITU-T evaluation results show that the codec fulfils all the re-quirements defined in the terms of reference. 1.