Monaural and binaural loudness of 5- and 200-ms tones in normal and impaired hearing.
Monaural and binaural loudness of 5- and 200-ms tones in normal and impaired hearing.
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DOI：
10.1121/1.2193813
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发表时间：
2006-06
期刊：
影响因子：
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通讯作者：
Shani Whilby;M. Florentine;Eva-Maria Wagner;J. Marozeau
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文献类型：
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作者：
Shani Whilby;M. Florentine;Eva-Maria Wagner;J. Marozeau
测量了听力正常和受损的听众的水平差异，以匹配单声道和双耳响度的5和200毫秒的音调。刺激是在10至90 dB感觉水平范围内呈现的1 kHz音调。16个听众（8个正常和8个损失的主要耳蜗起源）等持续时间的单声道和双耳音调之间的响度匹配使用自适应2AFC程序。目前的结果证实了现有的数据为200毫秒的音调在正常的听众，并提供新的数据为5毫秒的音调。平均而言，单声道和双声道音调的相等响度所需的双声道电平差对于相等电平的5 ms和200 ms音调大致相同，并且作为电平的函数而变化。正常和受损的听众的组数据是在合理的协议与文献中的数据。然而，从一些受损的听众的数据明显偏离平均值，表明组数据不准确地代表所有受损的听众的行为。从响度匹配数据导出的响度函数与文献中的个体数据相当一致。
The difference in level required to match monaural and binaural loudness of 5- and 200-ms tones was measured for listeners with normal and impaired hearing. Stimuli were 1-kHz tones presented at levels ranging from 10 to 90 dB sensation level. Sixteen listeners (eight normal and eight with losses of primarily cochlear origin) made loudness matches between equal-duration monaural and binaural tones using an adaptive 2AFC procedure. The present results corroborate existing data for 200-ms tones in normal listeners and provide new data for 5-ms tones. On average, the binaural level difference required for equal loudness of monaural and binaural tones is about the same for 5- and 200-ms tones of equal level and changes as a function of level. The group data for normal and impaired listeners are in reasonable agreement with data in the literature. However, the data from some of the impaired listeners deviate markedly from the average, indicating that group data do not accurately represent the behavior of all impaired listeners. Derived loudness functions from the loudness-matching data are reasonably consistent with individual data in the literature.