浊音

In this paper, a new algorithm based on wavelet transform and Teager energy operator is presented to detect voiced regions.

常用的浊音段提取方法多采用语音信号的短时能量、短时平均过零率及线性预测编码参数等来提取浊音段。

The recognition of voiced phonemes in final is based on the first and second formant which are extract from FFT spectrum.

根据浊音的特点，研究了浊音的短帧FFT谱，提出利用谱图和浊音谱结构的知识提取第一、二共振峰等参数，并根据在FFT谱上提取的第一、二共振峰进行浊音串和韵母的识别的方案。

For the pitch misgrouping problem caused by no voicing decision in Meddis'pitch extracting method for concurrent speech signals, referring to voicing decision for single speech signal, basing on the analysis of the voicing charater of concurrent speech signals, we present a voicing decision method in pitch extracting for concurrent speech signals. Double periodic degree and frequencies group's distribution degree are introduced for voicing decision of concurrent speech signals.

针对Meddis的基于听觉心理生理的混叠语音基频提取算法中不分清浊音所导致的语音基频错判问题，借鉴了单语音清浊音判断的方法，基于对混叠语音的清浊性能的分析，提出了混叠语音基频提取中的清浊音判断算法，提出了判断混叠语音周期性的双周期度及判断频带组周期性的分布度两个指标，用于混叠语音基频提取中的清浊音判断。

Secondly, different methods are adopted to detect pitch periods of sonant frames and transition frames of surd and sonant.

其次，采用不同的方法对浊音帧和清浊音过渡帧进行基音检测。

The method for searching the beginning and ending point of the sonant was improved. Thus, more accurate points could be acquired.

还改进了浊音起止点检测算法，使浊音起止点的定位更精确。

Thats to say, the method of weighted autocorrelation function is adopted for sonant frames while the singularity detection theory of wavelet transform is adopted for transition frames of surd and sonant.

对浊音帧，采用加权自相关法进行检测；对清浊音过渡帧，则利用小波变换的突变检测原理进行检测。

In accordance with chaotic essence of speech signals , syllable segmentation in continuous speech is researched by fractal theory . an approach of syllable segmentation using variance fractal dimension is proposed , its performance is analyzed in detail . the method can discriminate between voiced and unvoiced , between surd and sonant , but it can hardly discriminate between sonant

本文根据语音信号的混沌本质，利用分形理论研究了汉语连续语音中的音节分割问题，提出了基于方差分形维数的音节分割方法，并详细分析了该方法的性能，它能很好地解决了无声与有声、浊音与清音间的分割问题，但很难解决浊音间的分割问题，当浊音相连且过渡段较短时，该方法无法实现它们之间的分割。

A method for protecting channel error code resistance ability of low speed vocoder includes applying improved Chinese plain code and BCH code to separately protect voice parameter in voiceless and voiced sound frames at coding end, using BCH code to recover relevant parameters of voiceless sound frame and using maximum post verification probability rule to recover parameter of voiceless sound accurately for voiced sound frame then using line spectrum to parameter anti-error code algorithm to recover line spectrum to parameter at decoding end.

该方法在编码端改变2.4kb/s SELP编码后清音帧清浊音参数的发送模式；采用BCH码和改进的(7，4)汉明码分别保护清音和浊音帧中的语音参数；在解码端，根据信源信道的联合特性采用分支判决确定清浊音；对于清音帧采用相应BCH码恢复出对应参数，对于浊音帧采用基于长时统计特性的最大后验概率准则恢复清浊音参数，并解码出线谱对参数第一级并对残留误码的线谱对参数采用线谱对参数抗误码算法恢复。

We present an improved DP-MBE SAM; secondly, un-voice analysis is introduced to the DP-MBESAM, so that the improved ASA system can be used not only to separate concurrent vowels but concurrent speech signals with unvoice as well.

针对基于DP-MBE SAM的混叠浊音听觉场景分析系统存在的问题，提出了改进的基于DP-MBE SAM的混叠语音听觉场景分析系统，包括两部分内容，第一，针对DP-MBE SAM在实际的应用中存在的求解矩阵奇异引起的参数模糊及混叠信号谐波频率相同引起的参数模糊问题，借鉴多帧内插方法，提出了改进的DP-MBE SAM；第二，在基于DP-MBE SAM的混叠浊音听觉场景分析系统加入清音分离环节，将系统的应用从浊音推广到含有清浊音的语音信号。

During the initial assessment of a client the nurse percusses dullness.

在最初的评估期间，护士叩诊浊音，她知道浊音是

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了