基于ERB尺度划分的多子带语声信号抗噪谱减算法
发布时间:2018-12-25 16:48
【摘要】:为了研究心理声学在语声增强方面的应用,本文提出了一种基于等效矩阵带宽(ERB)尺度划分的多子带语声信号抗噪谱减算法。此算法根据ERB尺度将带噪信号的频谱划分成多个子带,然后再根据每个子带的分段信噪比以及心理声学掩蔽原则分别计算每个子带的谱减参数,最后在每个子带中分别进行谱减算法处理。实验结果表明,应用新算法所获得的语声增强结果在信噪比、IS失真以及PESQ方面均优于之前提出的多子带语声信号抗噪谱减算法。
[Abstract]:In order to study the application of psychoacoustics in speech enhancement, an anti-noise-spectrum de-noising algorithm for multi-subband acoustic signals based on (ERB) scale partition of equivalent matrix bandwidth is proposed in this paper. According to the ERB scale, the spectrum of the noisy signal is divided into several sub-bands, and then the spectral subtractive parameters of each sub-band are calculated according to the segmented signal-to-noise ratio of each sub-band and the principle of psychoacoustic masking. Finally, spectral subtraction algorithm is used in each subband. The experimental results show that the proposed algorithm is superior to the previous algorithm in signal to noise ratio (SNR), IS distortion and PESQ.
【作者单位】: 南京师范大学物理科学与技术学院;
【基金】:江苏省科技项目(BE2014139)
【分类号】:TN912.35
本文编号:2391377
[Abstract]:In order to study the application of psychoacoustics in speech enhancement, an anti-noise-spectrum de-noising algorithm for multi-subband acoustic signals based on (ERB) scale partition of equivalent matrix bandwidth is proposed in this paper. According to the ERB scale, the spectrum of the noisy signal is divided into several sub-bands, and then the spectral subtractive parameters of each sub-band are calculated according to the segmented signal-to-noise ratio of each sub-band and the principle of psychoacoustic masking. Finally, spectral subtraction algorithm is used in each subband. The experimental results show that the proposed algorithm is superior to the previous algorithm in signal to noise ratio (SNR), IS distortion and PESQ.
【作者单位】: 南京师范大学物理科学与技术学院;
【基金】:江苏省科技项目(BE2014139)
【分类号】:TN912.35
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