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Open Access
CC BY 4.0 · Int Arch Otorhinolaryngol 2025; 29(04): s00451810029
DOI: 10.1055/s-0045-1810029
Original Research

Acoustic Changes in Voicemail Transmission Induced by Mobile Phones

Authors

  • Halil Erdem Özel 

    1   Department of Otolaryngology, University of Health Sciences Derince Research and Training Hospital, Kocaeli, Turkey

Funding The author declares that no funding was received for this work.
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Abstract

Introduction

Given the widespread use of mobile phones for voice communication, a comprehensive understanding of the objective acoustic alterations in voicemail transmission is lacking, motivating this investigation into voice quality changes.

Objective

This study aims to explore the objective changes in voice recordings caused by mobile phones and voicemail applications during the transmission process, specifically focusing on the alterations to voice quality that occur during this process.

Methods

A volunteer sample of 45 healthy male hospital employees, with an average age of 36.7 ± 7.5 (ranging from 22 to 50), in a tertiary referral center were included in this study. The Multi-Dimensional Voice Program (Kay Elemetrics, Lincoln Park, NJ, USA) was employed to compare a set of nine parameters derived from sustained vowel phonations of /a/, encompassing free-field voice and mobile phone voicemail recordings. Average fundamental frequency (Fo), frequency perturbation parameters [Pitch Period Perturbation Quotient (PPQ), Relative Average Perturbation (RAP)], amplitude perturbation parameters [Shimmer in dB (ShdB), Shimmer Percent (Shim), Amplitude Perturbation Quotient (APQ)], noise parameters [Noise-to-Harmonic Ratio (NHR)] were calculated.

Results

Analysis of the patient data revealed that fundamental frequency (Fo) was resistant to alterations of voice (p = 0,313). Frequency perturbation parameters (PPQ, RAP) were impacted (p = 0.018, 0.020 respectively), however, amplitude perturbation parameters (ShdB, Shim, APQ) and noise parameter (NHR) were much more affected in voice transmission caused by mobile phones (p < 0,001 in all).

Conclusion

The findings of this study indicate that mobile phones induce significant acoustic changes in voicemail transmission. The fundamental frequency remained resistant to alterations in voice.

Keywords

voice - voice quality - mobile phone

Data Availability Statement

Data supporting the results of this study are available upon a reasonable request from the corresponding author.




Publication History

Received: 12 July 2024

Accepted: 24 May 2025

Article published online:
16 October 2025

© 2025. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution 4.0 International License, permitting copying and reproduction so long as the original work is given appropriate credit (https://creativecommons.org/licenses/by/4.0/)

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Bibliographical Record
Halil Erdem Özel. Acoustic Changes in Voicemail Transmission Induced by Mobile Phones. Int Arch Otorhinolaryngol 2025; 29: s00451810029.
DOI: 10.1055/s-0045-1810029