Acoustic reflexes in the measurement of auditory filters at high levels in normal listeners

Stuart Rosen, Richard J. Baker

    Research output: Contribution to journalArticlepeer-review


    The possible influence of the acoustic reflex in auditory filter shape measurements was investigated in 4 normal listeners by measuring contralateral acoustic reflexes to stimuli used in the notched-noise method. For probe/masker combinations centred at 125 and 250 Hz, the reflex was, at most, barely detectable even at masker levels of 80 dB SPL/Hz. On the other hand, all listeners had a measurable reflex at a masker level of 70 dB SPL/Hz for a probe/masker combination centred at 1 kHz. Some listeners also evidenced reflexes at a masker level of 60 dB SPL/Hz at this frequency and at 70 dB SPL/Hz at 500 Hz. As it is known that the acoustic reflex significantly attenuates frequency components of sounds below about 2 kHz as they pass through the middle ear, it appears that estimates of auditory filter bandwidths at high levels at 0.5 and 1 kHz can be influenced to some degree by the reflex. © 1994 Informa UK Ltd All rights reserved: reproduction in whole or part not permitted.
    Original languageEnglish
    Pages (from-to)37-46
    Number of pages9
    JournalInternational Journal of Audiology
    Issue number1
    Publication statusPublished - 1994


    • Acoustic reflex
    • Frequency selectivity
    • Middle ear
    • Notched-noise masking


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