Integration of acoustic power at threshold by normal hearers.
Integration of acoustic power at threshold by normal hearers.
复制标题
正常听者在阈值处的声功率积分。
DOI：
10.1121/1.1910123
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发表时间：
1966
期刊：
影响因子：
--
通讯作者：
R. Carhart
中科院分区：
文献类型：
--
作者：
W. Olsen;R. Carhart
Threshold responses for seven durations of 250 , 1000 , and 4000‐cps and white noise were determined for 32 normal‐hearing persons. The time parameters and spectral characteristics of the stimuli were carefully specified. The following results were obtained. (1) There was no significant difference between the male or female groups employed here with regard to their threshold response to short‐duration acoustic stimuli. (2) The decrease in intensity required for threshold response as a function of stimulus length was a real difference when the stimulus was systematically doubled in length from 10 to 500 msec. (3) Changes in the intensity necessary for threshold response resulting from changes of signal length were highly similar for 250‐, 1000‐, and 4000‐cps and white‐noise stimuli of more than 50 msec in length, but there was an excessive increase in intensity needed for response when 250‐cps stimuli were made shorter than 50 msec in duration. (4) Test‐retest reliability of threshold response to short‐dur...
