Auditory brainstem responses to chirps delivered by an insert earphone with equalized frequency response

作者：Elberling Claus^*; Don Manuel; Kristensen Sinnet G B

来源：Journal of the Acoustical Society of America, 2012, 132(2): EL149-EL154.

DOI：10.1121/1.4737915

Recently it has been demonstrated that auditory brainstem responses, ABRs, to chirps are larger with the ER-2 than with the ER-3A insert earphone due to differences between the corresponding amplitude-frequency responses. Therefore a modified chirp, which equalizes the amplitude-frequency response of the ER-3A, is constructed and subsequently compared to the unmodified chirp. ABRs are recorded from 20 normal-hearing subjects in response to the two chirps delivered by the ER-3A earphone at a wide range of levels. The results confirm that the modified chirp generates significantly larger ABRs than the unmodified chirp at levels below 60 dB nHL.

• 出版日期2012-8