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首页> 外文会议>2017 International Conference on Electrical, Electronics, Communication, Computer, and Optimization Techniques >Modified magnitude spectral subtraction methods for speech enhancement
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Modified magnitude spectral subtraction methods for speech enhancement

机译：改进的幅度谱减法用于语音增强

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摘要

In this paper, the method proposed by Boll, noise is estimated from the initial few frames of silence region and is subtracted from noisy speech spectral magnitude, the subsequent proposing steps are residual noise removal and additional signal attenuation to improve the performance. In this research work, we proposed to study the effect of non-stationary noise and use of over subtraction factor and spectral floor factor as proposed by Berouti. The experimental results indicate that variations implemented results in better performance for helicopter noise and all types of noises at negative SNR's, the spectrogram also indicate that this method does the job similar to that of Boll's proposal.
机译：本文采用Boll提出的方法，从静默区域的最初几帧中估计出噪声，然后从嘈杂的语音频谱幅度中减去噪声，随后提出的步骤是去除残留噪声和增加信号衰减以提高性能。在这项研究工作中，我们提议研究非平稳噪声的影响以及Berouti提出的使用超减因子和频谱底限因子。实验结果表明，实施变化可以使直升机噪声和所有类型的噪声在SNR为负的情况下具有更好的性能，频谱图还表明，该方法的工作类似于Boll的建议。

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