ETSI TR 126 975-2017 数字蜂窝通信系统(第2+阶段)(GSM全球移动通信系统);通用移动通信系统(UMTS);长期演进技术(LTE);自适应多速率(AMR)语音编解码器的性能表征(V14.0.0;3GPP TR 26.975版本14.0.0 发行版本14)
Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Performance characterization of the Adaptive Multi-Rate (AMR) speech codec (V14.0.0; 3GPP TR 26.975 version 14.0.0 Release 14)