amrwb适用于3G系统的变速率语音编码技术，这篇文档介绍了amrwb中的帧结构。-amrwb applicable to the 3G system variable-rate speech coding technology, This document describes the amrwb the frame structure.

3GPP AMR Adaptive Multi-Rate - Wideband (AMR-WB) Speech Codec Shared Library,3GPP AMR Adaptive Multi-Rate- Wideband (AMR-WB) Speech Codec Shared Library