g.726 (12/90) 40, 32, 24, 16 kbit/s Adaptive Differential Pulse Code Modulation (ADPCM) Corresponding ANSI-C code is available in the G.726 module of the ITU-T G.191 Software Tools Library

Corresponding ANSI-C code is available in the G.726 module of the ITU-T G.191 Software Tools Library

Recommendation G.726 was prepared by Study Group XV and was approved under the Resolution No. 2 procedure on the 14 of December 1990. In this Recommendation, the expression "Administration" is used for conciseness to indicate both a telecommunication Administration and a recognized private operating agency. All rights reserved.

Apr 14, 2014 · 2. **g726**：G.726是一种适应性差分脉冲编码调制（Adaptive Differential Pulse Code Modulation, ADPCM）的音频编码标准，由ITU-T于1992年发布。G.726提供40kbps、32kbps、24kbps和16kbps四种不同的数据速率，可以...

该文主要介绍了多通道语音采集与处理系统的设计与实现,以及以此硬件平台为基础的多路ITU-T G.726语音压缩标准的实现.多路语音采集与处理系统主要包括三个主要部分:以TMS320VC5402为核心的数据处理模块,以TLC320AD50为核心的语音采集与编解码 (CODEC)模块及扩展存储器模块.实践证明,该系统具有较强的数据处理能力,能够满足语音信号的处理要求,可以作为研究语音信号处理的通用平台.G.726标准采用ADPCM压缩算法,利用语音信号的相关性和非平稳性,使用自适应 …

Aug 2, 2005 · G.726 is an ITU standard codec. This codec uses the Adaptive Differential Pulse Code Modulation (ADPCM) scheme. Like G.711, G.726 has its roots in the PSTN network. It is primarily used for international trunks to save bandwidth. Where G.711 uses 64 Kbps, G.726 uses 32 Kbps, providing nearly the same quality.

GAO’s G.726 vocoder converts a 64 Kbps A-law or µ-law PCM channel to or from a 40, 32, 24 or 16 kbps channel. The conversion is applied to the PCM bit stream using an ADPCM transcoding technique. Thus, the scheme has switchable transmission rates providing 4 kHz of audio bandwidth in conformance with the ITU standard.

G.726 is an ITU-T ADPCM speech codec standard covering the transmission of voice at rates of 16, 24, 32, and 40 kbit/s. It was introduced to supersede both G.721, which covered ADPCM at 32 kbit/s, and G.723, which described ADPCM for 24 and 40 kbit/s.

中文摘要摘要本论文研究并设计了32通道的ADPCM编解码器，符合ITU－TG．726标准，采取全硬件的ASIC方案来提高系统的处理速度，并降低了功耗，实现了语..

G.726 TELECOMMUNICATION Annex B STANDARDIZATION SECTOR OF TU (07/2003) SERIES G: TRANSMISSION SYSTEMS AND MEDIA DIGITAL SYSTEMS AND NETWORKS Digital terminal equipments-coding of analogue signals