宽带语音

接着讲述了基于DSP的宽带语音处理系统的总体设计，包括系统架构设计、算法与芯片选型等。

Secondly , the design of the wideband speech processing system based on DSP is described .

提出了一种基于自适应加权谱内插（STRAIGHT）的宽带语音编码算法。

Based on speech transformation and representation using adaptive interpolation of weighted spectrum ( STRAIGHT ), a wideband speech coding algorithm is presented .

基于HMM状态聚类均值替代的宽带语音ISF参数补偿算法

ISF Parameters Concealment Algorithm Based on the HMM Clustering Means for Wideband Speech

G.722.1低码率宽带语音编解码器的DSP实现

Realization of G.722.1 Wideband Speech Codec on DSP

DSP技术的高速发展为宽带语音信号处理提供了强有力的工具，使得较为复杂的宽带语音编解码算法的实时实现成为可能。

With the rapid development of DSP technology , it has become a powerful tool in the wideband speech signal processing , which makes it possible to implement the complex algorithms for wideband speech in real time .

对新型宽带语音编解码器AMR-WB的研究

The Study of a New Wideband Speech Codec AMR-WB

CELP宽带语音编码中感知加权滤波器的新算法用于语音子频带编码的编解码器的设计与微处理机实现

New algorithm of perceptual weighting filter used in CELP wideband speech codec . Design and Microprocessor-Implementation of ADPCM Encoder for SBC

经过两种低速率的宽带语音编码输出的广西大学硕士研究生学位论文合成语音，通过听力测试MOS可达到3.5左右，表明合成语音的质量达到预定的要求。

The synthesize speech which is put out come by low bits rate wideband coding can reach MOS 3.5 by audition test . That indicate the quality of synthesize speech can achieve scheduled request .

考察了特征波形内插（CWI）算法对于宽带语音编码的扩展能力。

The paper investigates the capability of extension of characteristic waveform interpolation ( CWI ) algorithm to wideband speech coding .

随着通信技术和信息的发展，宽带语音将应用于视频会议，电话会议以及ISDN的多用户／多信道通信领域。

With the development of communications technology and information technology , wideband speech would be applied to videoconference , conference call , as well as to multi-user / multi-channel communications domain of ISDN .

基于子带编码原理的10.4kbt/s宽带语音编码实现

Implement 10.4kbt/s Wideband Speech Code Based on the Theory of Sub-band Coding

729A作为低频部分的编码；高频部分采用编码速率较低的MELP算法，仿真实现10.4kbit/s的宽带语音编码。

729A coder , the high-band uses lower bits of MELP , so 10.4kbit/s wideband speech coding can be simulated to realization .

对于小波阈值，使用了根据估计值变量和偏差的能显示软硬阈值的半软阈值函数。GMM普遍用于说话人识别系统中，并且在宽带语音中表现出了很好的性能。

First , for threshold in the wavelet domain , a semi-soft threshold function that showed the advantages over hard and soft threshold function with respect to variance and bias of the estimated value is used .

AMR-WB（AdaptiveMulti-RateWidebandSpeechCodec）同时被3GPP和ITU-T选定为高品质宽带语音编解码标准，增强了语音质量自然度和舒适度，在移动终端上具有十分广阔的应用前景。

The AMR-WB ( Adaptive Multi-Rate Wideband Speech Codec ) codec was both selected by 3GPP and ITU-T as wideband speech codec standard , substantially improved speech quality , naturalness and comfort , had great application prospect on mobile terminals .

比较了现有的宽带语音编码标准，重点介绍了自适应多速率的宽带语音压缩编码标准AMR-WB，分析了它的语音质量，以及在未来的广泛应用。

In this paper , comparison among current standards of wideband speech compression coding are briefly introduced . New generation standards of wideband speech compression coding ( AMR-WB ) is emphasized and its speech quality is analyzed . Finally , its application in the future is expected .

本文的全面系统地介绍了G.729标准与混合激励线性预测语音编解码的原理，子带编码的原理，并基于该原理仿真实现14.4kbit／s和10.4kbit／s的宽带语音编码的实现方法。

729 standard and the principle of Mixed Excitation Line Prediction ( MELP ) coding decoding are completely and systemic introduced . The theory of sub-band coding is researched , basing on the theory of sub-band coding , so 14.4kbit/s and 10.4kbit/s wideband speech coding can be simulated to realization .

当前国际标准组织定义的宽带语音编码标准有G。

Now the wideband speech coding standards defined by ITU-T are G.

基于自适应加权谱内插的宽带语音编码算法

Wideband Speech Coding Algorithm Based on Adaptive Interpolation of Weighted Spectrum

一种基于正弦模型的变码率低速率宽带语音编码算法

Wideband Variable-rate Low Bit Speech Coding Algorithm Based on Sinusoidal Model

基于特征波形内插与频带扩展技术的低速率宽带语音编码器

Low Bit Rate Wideband Speech Coder Based on CWI and BWE Techniques

基于正弦语音模型的低比特率宽带语音编码算法的研究

Research on Low-bit-rate Wideband Speech Coding Algorithms Based on the Sinusoidal Speech Model

最终的宽带语音由原始窄带语音和扩展得到的高带语音经子带合成得到。

Adding the high-band speech to the low-band , wide-band speech is synthesized .

s两种不同比特率的宽带语音编码的实现方法。

Several algorithms about wideband speech coding are introduced .

宽带语音编码&机遇与实施挑战

Wideband Voice Coding - Opportunities and Implementation Challenges

低比特率宽带语音编码的研究

Research of Low Bits Rate Wideband Speech Codec

宽带语音编码算法及实现

Algorithms and Their Implement on Wideband Speech Coding

本文提出了实现两种不同速率的低比特率宽带语音编码的方案。

Realization two different rates scheme for lowness bits rate wideband speech coding are presented .

本文论述采用小波包法进行实时宽带语音编码。

Abstract : We developed a real-time wideband speech codec adopting a wavelet packet based methodology .

一种改进的12.8kb·S~（-1）宽带语音压缩技术的实现

An improved 12.8 kb · . s ~ ( - 1 ) wideband speech compression coding

宽带语音编码技术在提高语音质量的同时，也提高了对系统的要求。

While wideband speech coding technology improves the speech intelligibility and naturalness , telecommunication systems have to be modified .