G.726,声码器,可切换传输速率
G.726 Speech Vocoder and Audio Codec (G726 Speech and Audio Compression and Processing Software) - GAO Research

G.726声码器

G.726声码器

GAO的 G.726声码器将64 Kbps的A律或μ律PCM信道转换成40,32,24或16 Kbps的信道。该转换将差分PCM转码技术应用到PCM码流。因此,该计划采用可切换传输速率,提供与ITU - T标准一致的4 kHz音频带宽。此应用非常广泛,诸如通过数字网络传输语音信号,视频会议,多媒体和ISDN通信.

ITU – T G.726是对ITU - T的G.721以及G.723标准的超越,最初被设计为半速率作为G.711音频压缩扩展。G.726可以把13或14 bit PCM采样值或8 位, A律或μ律编码数据编成2,3,4或5 bit编码字的数据。由于该算法一次编码一个样值,编码或解码有效延迟为零,是稳定的高质量声音.

G.726声码器的特点

G.726 Speech Vocoder and Audio Codec (G726 Speech and Audio Compression and Processing Software) Demo

如需GAO语音声码器软件产品的完整目录,请参阅 GAO's Speech Vocoders List.

G.726 VocoderG.726产品可打印的PDF格式

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