The normalized interaural correlation:: Accounting for NoSπ thresholds obtained with Gaussian and "low-noise" masking noise
The normalized interaural correlation:: Accounting for NoSπ thresholds obtained with Gaussian and "low-noise" masking noise
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DOI：
10.1121/1.428051
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发表时间：
1999-08-01
影响因子：
2.4
通讯作者：
Trahiotis, C
中科院分区：
文献类型：
--
作者：
Bernstein, LR;van de Par, S;Trahiotis, C
最近，Eddins和Barber [J. Acoust.秒Am. 103，2578-2589（1998）]和Hall等人[.声音塞克103，2573-2577（1998）]独立地报道了由diotic低噪声噪声比由diotic高斯噪声产生更大的耳间相位反转（Spi）音调的掩蔽。基于定量分析，Eddins和Barber认为，他们的结果不能通过假设听者的判断是基于标准化耳间相关性的恒定标准变化来解释的，标准化耳间相关性是通过将S pi信号添加到diotic masker产生的。特别是，他们表明，一个模型，如以前所采用的伯恩斯坦和Trahiotis [J。秒Am. 100，3774-3784（1996）]预测了与观察到的相反的感兴趣条件之间的阈值排序。伯恩斯坦和Trahiotis计算了半波、平方律整流和低通滤波后的标准化耳间相关性，其参数被选择为模拟外周听觉处理。在这份报告中，它表明，通过增加一个生理上有效的阶段“包络压缩”之前，整流和低通滤波的模型提供了一个补救措施。新模型不仅考虑了Eddins和Barber获得的数据（以及Hall等人获得的类似数据），但也没有削弱对产生该模型原始形式的一套全面数据的高度成功的解释。因此，基于归一化耳间相关性的计算的模型似乎仍然有效，因为它们可以定量和定性地解释各种各样的双耳检测和辨别数据。(C)1999年美国声学学会。[S0001-4966（99）06108-1]。
Recently, Eddins and Barber [J. Acoust. Sec. Am. 103, 2578-2589 (1998)] and Hall et al. [. Acoust. Sec, Am. 103, 2573-2577 (1998)] independently reported that greater masking of interaurally phase-reversed (S pi) tones was produced by diotic low-noise noise than by diotic Gaussian noise. Based on quantitative analyses, Eddins and Barber suggested that their results could not be accounted for by assuming that listeners' judgments were based on constant-criterion changes in the normalized interaural correlation produced by adding the S pi signal to the diotic masker. In particular, they showed that a model like the one previously employed by Bernstein and Trahiotis [J. Acoust. Sec. Am. 100, 3774-3784 (1996)] predicted an ordering of thresholds between the conditions of interest that was opposite to that observed. Bernstein and Trahiotis computed the normalized interaural correlation subsequent to half-wave, square-law rectification and low-pass filtering, the parameters of which were chosen to mimic peripheral auditory processing. Tn this report, it is demonstrated that augmenting the model by adding a physiologically valid stage of "envelope compression" prior to rectification and low-pass filtering provides a remedy. The new model not only accounts for the data obtained by Eddins and Barber (and the similar data obtained by Hall er al.), but also does not diminish the highly successful account of the comprehensive set of data that gave rise to the original form of the model. Therefore, models based on the computation of the normalized interaural correlation appear to remain valid because they can account, both quantitatively and qualitatively, for a wide variety of binaural detection and discrimination data. (C) 1999 Acoustical Society of America. [S0001-4966(99)06108-1].