耳机耳垫中心孔直径对听力计耳机声学输出的影响。
Influence of earphone-cushion center-hole diameter on the acoustic output of audiometric earphones.
作者信息
Richards W D, Frank T A, Prout J H
出版信息
J Acoust Soc Am. 1979 Jan;65(1):257-9. doi: 10.1121/1.382245.
DOI:10.1121/1.382245
PMID:422818
Abstract
Although the dimensions of the MX-41/AR earphone cushion are specified in ANSI S3.6--1969, nonstandard MX--41/AR cushions are still found on some audiometers. Variations in the diameter of the cushion's center hole are shown to affect the coupler calibration of the earphone and also hearing threshold measurements at high audiometric frequencies.
摘要
尽管MX - 41/AR耳机垫的尺寸在ANSI S3.6 - 1969中有规定，但在一些听力计上仍能发现非标准的MX - 41/AR垫子。结果显示，垫子中心孔直径的变化会影响耳机的耦合器校准，还会影响高听力测试频率下的听力阈值测量。
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