| 一种基于听觉掩蔽模型的语音增强算法 |
| |
| 引用本文： | 蔡汉添,袁波涛.一种基于听觉掩蔽模型的语音增强算法[J].通信学报,2002,23(8):93-98. |
| |
| 作者姓名： | 蔡汉添 袁波涛 |
| |
| 作者单位： | 华南理工大学,电子与通信工程系,广东,广州,510640 |
| |
| 基金项目： | 国家自然科学基金资助项目（69896240） |
| |
| 摘 要： | 本文提出一种基于听觉掩蔽模型的语音增强算法。该算法对应用于语音编码中的听觉掩蔽模型进行了适当的修正，动态地确定第一帧语音信号各个关键频率段的听觉掩蔽阈值，有选择性地进行谱减。计算机仿真表明所提算法优于基本谱减法，不仅信噪比有较大的提高而且有效地减少了主观听觉的失真和残留音乐噪声。
|
| 关 键 词： | 语音增强 谱减算法 听觉掩蔽模型 语音处理 |
| 文章编号： | 1000-436X(2002)08-0093-06 |
| 修稿时间： | 2001年11月28 |
A speech enhancement algorithm based on masking properties of human auditory system |
| |
| CAI Han-tian,YUAN Bo-tao.A speech enhancement algorithm based on masking properties of human auditory system[J].Journal on Communications,2002,23(8):93-98. |
| |
| Authors: | CAI Han-tian YUAN Bo-tao |
| |
| Abstract: | An approach to speech enhancement based on masking properties of human auditory system is presented. In this approach, the masking model of human auditory system used in speech coding is modified, the masking thresholds of the key frequency segments of each speech frame are determined dynamically, and the selective spectral subtraction is performed. The experiment results show that the proposed algorithm is superior to the general spectral subtraction methods, not only in the SNR improvement, but also in the reduction of audible distortion and music residual noise. |
| |
| Keywords: | speech enhancement spectral subtraction masking model of auditory system |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
