Tdma third generation wireless - adaptive multi - rate speech codec minimum performance requirements 时分多址联接第三代无线电通信.自适应多速率语音编码译码器最低性能要求
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Audio codec requirements for the provision of bi - directional audio service over cable television networks using cable modem 使用电缆调制解调器通过有线电视网络提供双向音频服务的音频编码译码器要求