ArticleInternational archives of otorhinolaryngology2025
Acoustic Changes in Voicemail Transmission Induced by Mobile Phones.
Article in International archives of otorhinolaryngology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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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 ( 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.
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