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Notched-noise embedded frequency specific chirps for objective audiometry using auditory brainstem responses

  • It has been shown recently that chirp-evoked auditory brainstem responses (ABRs) show better performance than click stimulations, especially at low intensity levels. In this paper we present the development, test, and evaluation of a series of notched-noise embedded frequency specific chirps. ABRs were collected in healthy young control subjects using the developed stimuli. Results of the analysis of the corresponding ABRs using a time-scale phase synchronization stability (PSS) measure are also reported. The resultant wave V amplitude and latency measures showed a similar behavior as for values reported in literature. The PSS of frequency specific chirp-evoked ABRs reflected the presence of the wave V for all stimulation intensities. The scales that resulted in higher PSS are in line with previous findings, where ABRs evoked by broadband chirps were analyzed, and which stated that low frequency channels are better for the recognition and analysis of chirp-evoked ABRs. We conclude that the development and test of the series of notched-noise embedded frequency specific chirps allowed the assessment of frequency specific ABRs, showing an identifiable wave V for different intensity levels. Future work may include the development of a faster automatic recognition scheme for these frequency specific ABRs.

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Document Type:Article
Author:Farah I. Corona-StraussORCiD, Bernhard Schick, Wolfgang Delb, Daniel J. Strauss
Parent Title (English):Audiology Research
First Page:30
Last Page:38
Year of first Publication:2012
Release Date:2022/11/18
Tag:auditory brainstem responses; chirps; frequency-specific ABRs; phase synchronization; single sweeps; wavelet transform
Open Access:Open Access
Signature:INM 2012/55
Licence (German):License LogoCreative Commons - CC BY - Namensnennung 4.0 International