Effect of linear and warped spectral transposition on consonant identification by normal-hearing listeners with a simulated dead region
Effect of linear and warped spectral transposition on consonant identification by normal-hearing listeners with a simulated dead region
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DOI：
10.3109/14992020903505521
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发表时间：
2010-06-01
影响因子：
2.7
通讯作者：
Moore, Brian C. J.
中科院分区：
文献类型：
--
作者：
Fuellgrabe, Christian;Baer, Thomas;Moore, Brian C. J.
我们研究了一种频率换位形式的辅音识别的潜在好处 适用于在高频下有严重或严重听力损失但在低频下接近正常的人 来自“高频区域中的源频段向下换位到“目标频段”的频率分量 所有实验均使用听力正常的听众 实验 I 表明，以 4 kHz 为中心的（未换位的）源频段产生最高的识别分数 此外，当源频段较宽时，性能会更好 实验 2 使用换位实验 3 评估了使用没有和有换位的条件进行集中训练的效果，但训练后的整体性能在所有条件下都相似，但是，换位减少了一些常见错误。
We investigated the potential benefits for consonant identification of a form of frequency transposition Intended for people with severe or profound hearing loss at high frequencies, but near-normal heartily at low frequencies Frequency components from a "source band in a high-frequency region were transposed downwards to a 'destination band' All experiments used normal-hearing listeners Experiment I showed that (untransposed) source bands centred near 4 kHz yielded highest identification scores Also, performance was better when the source band was wider Experiment 2 used transposition with the 'best' source bands front experiment I. and showed that superimposing the transposed components on the components in the destination band gave better results than replacing the latter by the former Experiment 3 assessed the effects of focused training. using conditions without and with transposition Significant Improvements occurred with training, but overall performance following training was similar for all conditions However, transposition reduced some frequent errors