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Updated: Jan 27, 2026

Semi-Automated Analysis of Peak Amplitude and Latency for Auditory Brainstem Response Waveforms Using R
Published on: December 9, 2022
Rising-frequency chirp stimulus to effectively enhance wave-I amplitude of auditory brainstem response
Takashi Morimoto1, Yoh-Ichi Fujisaka1, Yasuhide Okamoto2
1Rion Co., Ltd, 3-20-41 Higashimotomachi, Kokubunji, Tokyo, 185-8533, Japan.
Abstract:
This study aims to find an effective chirp signal that enhances the amplitude of wave-I of auditory brainstem response (ABR) to diagnose "cochlear synaptopathy." Although several chirp signals have been proposed to enhance the amplitude of wave-V, the effect on wave-I has not been clarified yet. Ten chirp signals, which have shorter group delays than the commonly used "CE-chirp," were produced to measure the amplitudes of wave-I and wave-V of the ABRs. The results show that one of the chirp signals significantly enhanced the amplitude of wave-I, where the group delay is approximately half of the CE-chirp.
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