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Audiology Research
Volume 5
Issue 2
10.4081/audiores.2015.136
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Audiology Research is published by MDPI from Volume 10 Issue 2 (2020). Previous articles were published by another publisher in Open Access under a CC-BY (or CC-BY-NC-ND) licence, and they are hosted by MDPI on mdpi.com as a courtesy and upon agreement with PAGEPress.
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Article

Safety of the Hypersound® Audio System in Subjects with Normal Hearing

by
Ritvik P. Mehta
1,*,
Sara L. Mattson
1,
Brian A. Kappus
2 and
Robin L. Seitzman
3
1
California Hearing & Balance Center, La Jolla, CA, USA
2
Turtle Beach Corporation, Poway, CA, USA
3
Seitzman Consulting, San Diego, CA, USA
*
Author to whom correspondence should be addressed.
Audiol. Res. 2015, 5(2), 136; https://doi.org/10.4081/audiores.2015.136
Submission received: 12 May 2015 / Revised: 3 August 2015 / Accepted: 12 August 2015 / Published: 20 November 2015

Abstract

The objective of the study was to assess the safety of the HyperSound® Audio System (HSS), a novel audio system using ultrasound technology, in normal hearing subjects under normal use conditions; we considered preexposure and post-exposure test design. We investigated primary and secondary outcome measures: i) temporary threshold shift (TTS), defined as >10 dB shift in pure tone air conduction thresholds and/or a decrement in distortion product otoacoustic emissions (DPOAEs) >10 dB at two or more frequencies; ii) presence of new-onset otologic symptoms after exposure. Twenty adult subjects with normal hearing underwent a pre-exposure assessment (pure tone air conduction audiometry, tympanometry, DPOAEs and otologic symptoms questionnaire) followed by exposure to a 2-h movie with sound delivered through the HSS emitter followed by a post-exposure assessment. No TTS or new-onset otological symptoms were identified. HSS demonstrates excellent safety in normal hearing subjects under normal use conditions.
Keywords: Hypersound®; ultrasonic hearing; directional audio; ultrasound safety Hypersound®; ultrasonic hearing; directional audio; ultrasound safety

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MDPI and ACS Style

Mehta, R.P.; Mattson, S.L.; Kappus, B.A.; Seitzman, R.L. Safety of the Hypersound® Audio System in Subjects with Normal Hearing. Audiol. Res. 2015, 5, 136. https://doi.org/10.4081/audiores.2015.136

AMA Style

Mehta RP, Mattson SL, Kappus BA, Seitzman RL. Safety of the Hypersound® Audio System in Subjects with Normal Hearing. Audiology Research. 2015; 5(2):136. https://doi.org/10.4081/audiores.2015.136

Chicago/Turabian Style

Mehta, Ritvik P., Sara L. Mattson, Brian A. Kappus, and Robin L. Seitzman. 2015. "Safety of the Hypersound® Audio System in Subjects with Normal Hearing" Audiology Research 5, no. 2: 136. https://doi.org/10.4081/audiores.2015.136

APA Style

Mehta, R. P., Mattson, S. L., Kappus, B. A., & Seitzman, R. L. (2015). Safety of the Hypersound® Audio System in Subjects with Normal Hearing. Audiology Research, 5(2), 136. https://doi.org/10.4081/audiores.2015.136

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