中文摘要：

用听觉的掩盖的低声说的讲话改进在修改 Mel- 的模型领域和讲话缺席概率树液被建议。考虑到发声字符 -- 耳语的 acteristic，我们修改可伸缩的 Mel 频率模型。低声说的讲话被建议模型过滤。同时，为每个频率乐队掩盖阀值的价值被讲话缺席概率动态地决定。然后低声说的讲话改进被适应地用不同掩盖的阀值价值修正光谱减法系数进行。提高的低声说的信号上的客观、主观的测试的结果与另外的方法相比显示出那；建议方法能由在掩盖的阀值价值下面减少音乐噪音和背景噪音与更好主观的听觉的质量和更少的失真提高低声说的信号。

英文摘要：

Whispered speech enhancement using auditory masking model in modified Mel- domain and Speech Absence Probability （SAP） was proposed. In light of the phonation char- acteristic of whisper, we modify the Mel-frequency Scaling model. Whispered speech is filtered by the proposed model. Meanwhile, the value of masking threshold for each frequency band is dynamically determined by speech absence probability. Then whispered speech enhancement is conducted by adaptively rectifying the spectrum subtraction coefficients using different masking threshold values. Results of objective and subjective tests on the enhanced whispered signal show that compared with other methods; the proposed method can enhance whispered signal with better subjective auditory quality and less distortion by reducing the music noise and background noise under the masking threshold value.