A Multi-Pitch Detecting Method Suitable for CASA

ZHAO He-ming; ZHU Mei-hong; YU Yi-biao; CHEN Xue-qin

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A Multi-Pitch Detecting Method Suitable for CASA

更新时间：2025-07-16

- A Multi-Pitch Detecting Method Suitable for CASA
- Acta Electronica Sinica Vol. 31, Issue 1, Pages: 21-24(2003)
- 作者机构：
  
  苏州大学通信与电子工程系,江苏,苏州,215021
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN912.3
- Published：2003
- 稿件说明：
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ZHAO He-ming, ZHU Mei-hong, YU Yi-biao, et al. A Multi-Pitch Detecting Method Suitable for CASA[J]. Acta Electronica Sinica, 2003, 31(1): 21-24.
DOI：

ZHAO He-ming, ZHU Mei-hong, YU Yi-biao, et al. A Multi-Pitch Detecting Method Suitable for CASA[J]. Acta Electronica Sinica, 2003, 31(1): 21-24. DOI：

摘要

本文提出了一种在混叠语音信号中检测各自语音分量基音信息的方法.该方法采用小波变换作为基音检测模型中的滤波处理

并用广义自相关运算突出基音信息

用增强自相关累和消除冗余信息

并提出了用基音概率函数来预测并跟踪不同基音的变化以提高基音检测的准确性.本文提出的方法可应用于计算声场景分析中.实验结果表明

该方法对于混叠语音的基音检测是非常有效的.

Abstract

This paper puts up a method suitable for multi-pitch detecting under overlapping speech signals environment.In this method

wavelet transform is used as filtering analysis part of this pitch detecting model.Besides that

generalized autocorrelation function is used to strengthen pitch information and enhanced summary autocorrelation function is used to weaken redundant information.It is the most important that a pitch probability function is given to predict and tail after each pitch tracking to improve the veracity of pitch detecting.Above-mentioned method could be applied to computational auditory scene analysis.From the experiment results provided

we can infer that this method is very useful and efficient.

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