Latency-dependent filtering and compact representation of the complete auditory pathway response

Angel de la Torre, Joaquin T. Valderrama*, Jose C. Segura, Isaac M. Alvarez

*Corresponding author for this work

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    Auditory evoked potentials (AEPs) include the auditory brainstem response (ABR), middle latency response (MLR), and cortical auditory evoked potentials (CAEPs), each one covering a specific latency range and frequency band. For this reason, ABR, MLR, and CAEP are usually recorded separately using different protocols. This article proposes a procedure providing a latency-dependent filtering and down-sampling of the AEP responses. This way, each AEP component is appropriately filtered, according to its latency, and the complete auditory pathway response is conveniently represented (with the minimum number of samples, i.e., without unnecessary redundancies). The compact representation of the complete response facilitates a comprehensive analysis of the evoked potentials (keeping the natural continuity related to the neural activity transmission along the auditory pathway), which provides a new perspective in the design and analysis of AEP experiments. Additionally, the proposed compact representation reduces the storage or transmission requirements when large databases are manipulated for clinical or research purposes. The analysis of the AEP responses shows that a compact representation with 40 samples/decade (around 120 samples) is enough for accurately representing the response of the complete auditory pathway and provides appropriate latency-dependent filtering. MatLab/Octave code implementing the proposed procedure is included in the supplementary materials.

    Original languageEnglish
    Pages (from-to)599-613
    Number of pages15
    JournalJournal of the Acoustical Society of America
    Issue number2
    Publication statusPublished - Aug 2020

    Bibliographical note

    Copyright 2020 Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America. The following article appeared in de la Torre, A., Valderrama, J. T., Segura, J. C., & Alvarez, I. M. (2020). Latency-dependent filtering and compact representation of the complete auditory pathway response. The Journal of the Acoustical Society of America, 148(2), 599-613, and may be found at

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