Methods to check on objective acoustic impedance and subjective pure tone audiometry.

方法对外伤性聋进行客观声导抗测试和主观纯音测试。

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Methods ABR tests were evaluated in 30 traumatic perforation of tympanic membrane cases (30 ears) and compared with the results of pure tone audiometry.

方法应用abr方法对30例(30耳)外伤性鼓膜穿孔进行测试，并将其结果与纯音电测听结果进行对照。

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Methods the pure tone thresholds of 30 subjects (60 ears) were measured by pure tone audiometry and MCML was obtained by means of the same frequency tone masking test.

方法30例受试者(60耳)分别进行纯音测听，首先测出双耳的纯音听阈，然后应用同频音掩蔽试验测试各个频率的MCML。

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More direct evidence from studies of experiments with animals and humans, however, suggests that we may have to alter the very concept of what we mean by hearing loss, and that current tests - particularly pure-tone audiometry which measures our ability to perform "pin-drop" hearing - may not be sufficient to pick up the early signs of a decline in hearing function.

BBC: Viewpoint: Does deafness contribute to dementia?