AMR-WB is a speech-compression algorithm. It offers substantially better voice quality (even in noisy environment) because of doubled throughput, without extra radio and transmission bandwidth requirements.
It is standardized in 3GPP Rel-5 and applicable in 3GPP mobile circuit switched systems (GSM, WCDMA) as well as packet switched systems (IMS Telephony, VoIP).´
AMR-WB comprises nine coding rates including the first three rates 6.60, 8.85 and 12.65kbps, which make up the mandatory multirate configuration.
A few speech examples of AMR-WB in comparison with today’s AMR codec.
