摘要
G.723.1协议是将音频信号压缩到5.3Kb/s和6.3Kb/s2种码率的音频编解码协议，主要应用在多媒体通信中的音频压缩。介绍一种基于Trimedia/NexperiaDSP的流结构TSSA（TrimediaStreamingSoftwareArchitecture）实现应用在可视电话中的G.723.1实时语音编解码。
The dual-rate speech codec deigned according to Recommendation G.723.1 can be used to compress speech signals at the two rates of 5.3 Kb/s and 6.3 Kb/s. It is used in multimedia communication for transmitting videophone, videoconference and other signals. A real-time speech codec for use in videophone is realized based on the TSSA (Trimedia streaming software architecture) of Trimedia/Nexperia DSP according to G.723.1.
出处
《电声技术》
2005年第2期26-29,共4页
Audio Engineering
基金
江苏省教育厅自然科学研究项目( 01KJD510009)
