在噪声中识别基本声源的目标增强和噪声消除。
Target enhancement and noise cancellation in the identification of a rudimentary sound source in noise.
机构信息
Auditory Behavioral Research Lab, University of Wisconsin, Madison, Wisconsin 53706, USA.
出版信息
J Acoust Soc Am. 2011 Feb;129(2):EL52-6. doi: 10.1121/1.3533000.
Perturbation analysis was used to determine the relative contribution of target enhancement and noise cancellation in the identification of rudimentary sound source in noise. In a two-interval, forced-choice procedure, listeners identified the impact sound produced by the larger of two stretched membranes as target. The noise on each presentation was the impact sound of a variable-sized plate. For four of five listeners, the relative weights on the noise were positive indicating enhancement, and for the remaining listeners, they were negative indicating cancellation. The results underscore the difficulty with evaluating models of masking solely in terms of measures of performance accuracy.
采用微扰分析方法确定在噪声中识别基本声源时目标增强和噪声消除的相对贡献。在两间隔、强制选择过程中，听众识别出由两个拉伸膜中较大的一个产生的冲击声作为目标。每次呈现的噪声都是可变尺寸板的冲击声。对于五个听众中的四个，噪声的相对权重为正，表明增强，对于其余听众，权重为负，表明消除。结果强调了仅根据性能准确性度量来评估掩蔽模型的困难。
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