Fine pitch contour extraction by voice fundamental wave filtering method
Fine pitch contour extraction by voice fundamental wave filtering method
复制标题
语音基波滤波法提取细音调轮廓
DOI：
10.1109/icassp.1994.389687
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
H. Ohmura
中科院分区：
文献类型：
--
作者：
H. Ohmura
提出了一种提取细音高轮廓的新方法。该方法的主要优点是使用一种简单的滤波技术来提取语音的基频分量，从而以基音同步地确定基音周期。处理的第一阶段是使用自适应控制滤波器进行滤波，以提取基音通道信号。第二阶段是基音轮廓确定过程，其有两种不同的方法。第一种方法是通过检测过零点将波分割成基音周期。另一种方法是提取连续的基音和强度轮廓。对该算法的性能研究表明，用该方法得到的基音轮廓线与人工跟踪的标准基音轮廓线具有很好的一致性。
A new method for fine pitch contour extraction is presented. The primary advantage of our approach is that a pitch period is determined pitch-synchronously using a simple wave filtering technique to extract the fundamental frequency component of voice. The first stage of processing is wave filtering using an adaptively controlled filter to extract the pitch channel signal. The second stage is a pitch contour determination process of which there are two different approaches. The first involves segmenting the wave into pitch periods by detecting zero crossing points. The other involves extracting continuous pitch and intensity contours. A performance study on the algorithm showed very good agreement between the resultant pitch contours obtained with this method and the manually traced standard pitch contours.<<ETX>>