| 坦克舱强噪声背景下利用掩蔽效应的语音增强 |
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| 引用本文： | 肖东,高勇.坦克舱强噪声背景下利用掩蔽效应的语音增强[J].现代电子技术,2006,29(11):37-38,45. |
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| 作者姓名： | 肖东 高勇 |
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| 作者单位： | 四川大学 电子信息学院 四川 成都 610065 |
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| 摘 要： | 采用了一种基于人耳听觉掩蔽效应的语音增强算法。该算法通过计算每一帧语音信号各个关键频率段的听觉掩蔽阈值,动态地调整谱减系数,有选择性地进行谱减。通过对采集的坦克舱内含强噪声的语音信号的计算机仿真表明,该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。
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| 关 键 词： | 语音增强 残留音乐噪声 听觉掩蔽效应 谱减法 |
| 文章编号： | 1004-373X（2006）11-037-02 |
| 收稿时间： | 2005-12-26 |
| 修稿时间： | 2005-12-26 |
Speech Enhancement Using Auditory Masking Properties under Strong Noise Environments in Tank Cockpit |
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| XIAO Dong,GAO Yong.Speech Enhancement Using Auditory Masking Properties under Strong Noise Environments in Tank Cockpit[J].Modern Electronic Technique,2006,29(11):37-38,45. |
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| Authors: | XIAO Dong GAO Yong |
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| Affiliation: | College of Electronics and Information Engineering, Sichuan University, Chengdu, 610065, China |
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| Abstract: | An approach to speech enhancement based on auditory masking properties is presented.The masking thresholds of the key frequency segments of each speech frame are determined,and the selective spectral subtraction is performed.The results of the noisy speech enhancement under tank cockpit environments show that this algorithm is superior to the general spectral subtraction is performed,not only in the SNR improvement,but also in the reduction of audible distortion and musical residual noise. |
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| Keywords: | speech enhancement musical residual noise auditory masking properties spectral subtraction |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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