How susceptibility to noise varies across speech frequencies
How susceptibility to noise varies across speech frequencies
复制标题
对噪声的敏感性如何随语音频率变化
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
Frédéric Apoux
中科院分区：
文献类型：
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作者：
Sarah E. Yoho;E. Healy;Frédéric Apoux
长期以来，人们一直假设噪声对语音的破坏影响在所有频率上都是一致的，并且每个语音频率的贡献随着噪声的增加而以相同的速度减少。这一假设在许多以前的工作中是显而易见的，并在语音可懂度指数中清楚地看到，其中每个语音频带的贡献以相同的方式根据存在的噪声量来衡量。在这里，有人认为不同的语音频段对噪声的敏感性可能不同。为了检验这一假设，复合方法[F.Apoux和E.W.Healy(2012)132，J.Acoust.SoC。上午。]被修改为评估单个关键语音频带的噪声敏感性。将噪声添加到每个目标语音频带，并估计将该频带的贡献降低一半所需的信噪比(SNR)。研究发现，不同语音频段的噪声敏感度差异很大，而同样影响每个频段所需的信噪比差异高达12分贝。有趣的是，频带重要性和噪声易感性之间似乎没有明显的系统关系。长期以来，人们一直假设噪声对语音的破坏影响在所有频率上是一致的，并且每个语音频率的贡献随着噪声的增加而以相同的速度下降。这一假设在许多以前的工作中是显而易见的，并在语音可懂度指数中清楚地看到，其中每个语音频带的贡献以相同的方式根据存在的噪声量来衡量。在这里，有人认为不同的语音频段对噪声的敏感性可能不同。为了检验这一假设，复合方法[F.Apoux和E.W.Healy(2012)132，J.Acoust.SoC。上午。]被修改为评估单个关键语音频带的噪声敏感性。将噪声添加到每个目标语音频带，并估计将该频带的贡献降低一半所需的信噪比(SNR)。研究发现，不同语音频段的噪声敏感度差异很大，而同样影响每个频段所需的信噪比差异高达12分贝。有兴趣的人。
It has been long assumed that the corrupting influence of noise on speech is uniform across all frequencies, and that the contribution of each speech frequency decreases at the same rate as noise is added. This assumption is evident in numerous previous works, and is seen clearly in the Speech Intelligibility Index where the contribution of each speech band is scaled in the same way according to the amount of noise present. Here, it is argued that susceptibility to noise may differ across speech bands. To test this hypothesis, the compound method [F. Apoux and E.W. Healy (2012) 132, J. Acoust. Soc. Am.] was modified to evaluate the noise susceptibility of individual critical bands of speech. Noise was added to each target speech band and the signal-to-noise ratio (SNR) required to reduce the contribution of that band by half was estimated. It was found that noise susceptibility varies greatly across speech bands, and that the SNR required to similarly affect each band differed by as much as 12 dB. Interestingly, no obvious systematic relationship appeared to exist between band importance and noise susceptibility.It has been long assumed that the corrupting influence of noise on speech is uniform across all frequencies, and that the contribution of each speech frequency decreases at the same rate as noise is added. This assumption is evident in numerous previous works, and is seen clearly in the Speech Intelligibility Index where the contribution of each speech band is scaled in the same way according to the amount of noise present. Here, it is argued that susceptibility to noise may differ across speech bands. To test this hypothesis, the compound method [F. Apoux and E.W. Healy (2012) 132, J. Acoust. Soc. Am.] was modified to evaluate the noise susceptibility of individual critical bands of speech. Noise was added to each target speech band and the signal-to-noise ratio (SNR) required to reduce the contribution of that band by half was estimated. It was found that noise susceptibility varies greatly across speech bands, and that the SNR required to similarly affect each band differed by as much as 12 dB. Interes...