Department of Head and Neck Surgery, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, 90095, USA.
House Institute Foundation, Los Angeles, California 90057,
JASA Express Lett. 2023 Jul 1;3(7). doi: 10.1121/10.0019955.
Speech recognition thresholds were measured as a function of the relative level between two speech maskers that differed in perceptual similarity from the target. Results showed that recognition thresholds were driven by the relative level between the target and perceptually similar masker when the perceptually similar masker was softer, and by the relative level between the target and both maskers when the perceptually similar masker was louder. This suggests that effectiveness of a two-talker masker is primarily determined by the masker stream that is most perceptually similar to the target, but also by the relative levels between the two maskers.
语音识别阈值是作为两个在感知上与目标不同的语音掩蔽器之间的相对水平的函数来测量的。结果表明，当感知相似的掩蔽器较软时，识别阈值受目标和感知相似掩蔽器之间的相对水平驱动；当感知相似的掩蔽器较响时，识别阈值受目标和两个掩蔽器之间的相对水平驱动。这表明，双说话人掩蔽器的有效性主要取决于与目标最相似的掩蔽器流，但也取决于两个掩蔽器之间的相对水平。
