Notionally steady background noise acts primarily as a modulation masker of speech.
Notionally steady background noise acts primarily as a modulation masker of speech.
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理论上稳定的背景噪声主要充当语音的调制掩蔽器。
DOI：
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发表时间：
2012
影响因子：
2.4
通讯作者：
B. Moore
中科院分区：
文献类型：
--
作者：
M. Stone;Christian Füllgrabe;B. Moore
Stone等人[J. Acoust. Soc Am. 130，2874-2881（2011）]，表明了理论上稳定的噪声的包络调制比作为语音掩蔽的包络能量更有效。在这里，使用非声码信号证明了相同的效果。语音被过滤到28个通道。以每个通道为中心的掩蔽物以-5或-10 dB的目标背景比添加到通道信号。掩蔽是正弦曲线或噪声带，带宽为1/3或1 ERB（N）（ERB（N）是“正常”听觉滤波器的带宽），用高斯（GN）或低噪声（LNN）统计合成。为了最大限度地减少掩蔽者之间的外周相互作用，奇数通道被呈现给一只耳朵，甚至是另一只耳朵。语音清晰度进行了评估，在每个“稳定”掩蔽和掩蔽100%正弦幅度调制（SAM）在8 Hz的存在。可懂度随着掩蔽噪声包络波动的增大而降低。掩蔽释放，SAM和其“稳定”对应物之间的可懂度差异，随着带宽从接近零增加到1-ERB（N）GN的约50个百分点。它的结论是，正弦和GN掩蔽表现主要作为充满活力和调制掩蔽，分别。
Stone et al. [J. Acoust. Soc Am. 130, 2874-2881 (2011)], using vocoder processing, showed that the envelope modulations of a notionally steady noise were more effective than the envelope energy as a masker of speech. Here the same effect is demonstrated using non-vocoded signals. Speech was filtered into 28 channels. A masker centered on each channel was added to the channel signal at a target-to-background ratio of -5 or -10 dB. Maskers were sinusoids or noise bands with bandwidth 1/3 or 1 ERB(N) (ERB(N) being the bandwidth of "normal" auditory filters), synthesized with Gaussian (GN) or low-noise (LNN) statistics. To minimize peripheral interactions between maskers, odd-numbered channels were presented to one ear and even to the other. Speech intelligibility was assessed in the presence of each "steady" masker and that masker 100% sinusoidally amplitude modulated (SAM) at 8 Hz. Intelligibility decreased with increasing envelope fluctuation of the maskers. Masking release, the difference in intelligibility between the SAM and its "steady" counterpart, increased with bandwidth from near-zero to around 50 percentage points for the 1-ERB(N) GN. It is concluded that the sinusoidal and GN maskers behaved primarily as energetic and modulation maskers, respectively.
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影响因子：
2.4
作者：
DELGUTTE, B
通讯作者：
DELGUTTE, B
影响因子：
2.4
作者：
Arbogast, TL;Mason, CR;Kidd, G
通讯作者：
Kidd, G
影响因子：
2.4
作者：
Durlach, NI;Mason, CR;Kidd, G
通讯作者：
Kidd, G
影响因子：
2.4
作者：
Whitmal, Nathaniel A., III;Poissant, Sarah F.;Helfer, Karen S.
通讯作者：
Helfer, Karen S.
用于辅音识别的语音波形包络提示。
DOI：
10.1121/1.395251
发表时间：
1987
期刊：
The Journal of the Acoustical Society of America
影响因子：
--
作者：
VanTasell,DJ;Soli,SD;Kirby,VM;Widin,GP
通讯作者：
Widin,GP