... Coefficients)之外，编码端针对有声 或无声语音，HVXC有不同的分析和编码方式，如果目前音框(frame)为 有声语音(Voiced Speech)信号，编码端会先求得开回路基周(Open Loop P- itch)，再利用类似多频带激发编码技术的方法，在频率域上，分析线性预 测编码残值...
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voiced speech sound 浊语言声
Voiced speech is interpreted as a concatenation of slowly evolving pitch cycle waveforms.
浊音语音可以看作是慢变化的基音周期波形的连接。
Firstly we analyze the speech with reversed polarity and present the idea of post-filtering of the LPC residual of these voiced speech frames.
该算法重点研究经典LPC分析后基音激励方向向下的语音，对这种浊音LPC残差进行后滤波以取代预增强的方法使其逼近语音激励。
By extracting the multipulse excitations during voiced speech, and adding the excitations into the process equation the harmonic of high-frequency area can be reconstructed.
通过在浊音段提取多脉冲激励信号加入语音的状态方程，有效地重建语音的高频谐波。
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