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本文引用的文献

1
Critical bandwidth speech: Arrays of subcritical band speech maintain near-ceiling intelligibility at high amplitudes.临界带宽语音：亚临界带语音阵列在高振幅时保持接近上限的可懂度。
J Acoust Soc Am. 2017 Mar;141(3):EL222. doi: 10.1121/1.4976031.
2
How broadband speech may avoid neural firing rate saturation at high intensities and maintain intelligibility.宽带语音如何在高强度下避免神经放电率饱和并保持可懂度。
J Acoust Soc Am. 2015 Apr;137(4):EL340-6. doi: 10.1121/1.4916793.
3
When intelligibilities of paired speech bands do not behave the way they are supposed to.当成对的语音频段的可理解度表现得不符合预期时。
J Acoust Soc Am. 2013 Aug;134(2):EL244-50. doi: 10.1121/1.4814945.
4
Maintaining intelligibility at high speech intensities: evidence of lateral inhibition in the lower auditory pathway.在高语音强度下保持可理解性：下听觉通路中侧抑制的证据。
J Acoust Soc Am. 2013 Jul;134(1):EL119-25. doi: 10.1121/1.4807861.
5
Relative contributions of passband and filter skirts to the intelligibility of bandpass speech: Some effects of context and amplitude.通带和滤波器裙边对带通语音可懂度的相对贡献：语境和幅度的一些影响。
Acoust Res Lett Online. 2000 Oct;1(2):31-36. doi: 10.1121/1.1329836.
6
An alternative to the computational Speech Intelligibility Index estimates: direct measurement of rectangular passband intelligibilities.计算语音可懂度指数估计的另一种方法：直接测量矩形通带可懂度。
J Exp Psychol Hum Percept Perform. 2011 Feb;37(1):296-302. doi: 10.1037/a0020411.
7
Intelligibilities of 1-octave rectangular bands spanning the speech spectrum when heard separately and paired.在单独聆听和配对聆听时，跨越语音频谱的1倍频程矩形频段的可懂度。
J Acoust Soc Am. 2005 Nov;118(5):3261-6. doi: 10.1121/1.2047228.
8
Enhancing intelligibility of narrowband speech with out-of-band noise: evidence for lateral suppression at high-normal intensity.利用带外噪声增强窄带语音的可懂度：高正常强度下侧向抑制的证据。
J Acoust Soc Am. 2005 Jan;117(1):365-9. doi: 10.1121/1.1835513.
9
Intelligibility of bandpass filtered speech: steepness of slopes required to eliminate transition band contributions.带通滤波语音的可懂度：消除过渡带贡献所需的斜率陡度。
J Acoust Soc Am. 2004 Mar;115(3):1292-5. doi: 10.1121/1.1646404.
10
Intelligibility of 1/3-octave speech: greater contribution of frequencies outside than inside the nominal passband.
J Acoust Soc Am. 1999 Nov;106(5):L47-52. doi: 10.1121/1.427606.

通过亚临界宽度语音频段阵列和内插噪声在高强度下保持可懂度。

Maintaining intelligibility at high intensities with arrays of subcritical width speech bands and interpolated noise.

作者信息

Bashford James A, Warren Richard M, Lenz Peter W

机构信息

Department of Psychology, University of Wisconsin-Milwaukee, P.O. Box 413, Milwaukee, Wisconsin 53201, USA

出版信息

J Acoust Soc Am. 2017 Sep;142(3):EL299. doi: 10.1121/1.5002735.

DOI:10.1121/1.5002735
PMID:28964061
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5724618/
Abstract

Speech intelligibility normally declines at high intensities, but this "rollover" effect decreases when steep filtering reduces sentences to an array of rectangular subcritical bands. The present study found that interpolating low intensity noise between the speech bands further decreases rollover, supporting the hypothesis that rollover is normally reduced by lateral inhibition of input from rate-saturated auditory nerve fibers. With noise also present within the speech (a 15 dB signal-to-noise ratio) an array of 6%-wide speech bands with interpolated noise was found to be 9% more intelligible at 100 dB than a spectrally continuous band of speech covering the same frequency range.

摘要

语音清晰度通常在高强度时会下降，但当陡峭滤波将句子简化为一系列矩形亚临界带时，这种“翻转”效应会减弱。本研究发现，在语音频段之间插入低强度噪声会进一步降低翻转，这支持了如下假设：翻转通常是通过对速率饱和的听神经纤维输入进行侧向抑制来降低的。当语音中也存在噪声（信噪比为15dB）时，发现一系列宽度为6%且带有插入噪声的语音频段在100dB时的可懂度比覆盖相同频率范围的频谱连续语音频段高9%。