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Mobile Phone Applications Voice Tools and Voice Pitch Analyzer Validated With LingWAVES to Measure Voice Frequency
Lidewij S Boogers1, Britney S J Chen1, Marieke J Coerts2
1Department of Endocrinology, Amsterdam University Medical Center, Amsterdam, North Holland, The Netherlands; Center of Expertise on Gender Dysphoria, Amsterdam University Medical Center, Amsterdam, North Holland, The Netherlands.
Mobile apps "Voice Tools" and "Voice Pitch Analyzer" reliably measure voice frequency in transgender individuals. These validated tools offer accessible options for clinical practice and research, aiding voice change assessment.
Area of Science:
- Medical applications of mobile technology
- Voice analysis and acoustics
- Transgender healthcare
Background:
- Voice frequency analysis is crucial for monitoring voice changes in transgender individuals undergoing hormone therapy.
- Existing methods for voice frequency measurement can be complex or inaccessible.
- Mobile phone applications offer a potential solution for accessible voice analysis.
Purpose of the Study:
- To validate the accuracy of two mobile phone applications,
- Voice Tools
- and
- Voice Pitch Analyzer
- , for measuring voice frequency.
- To compare the performance of these applications against a gold standard, LingWAVES.
- To assess the suitability of these apps for clinical and research use in transgender voice care.
Main Methods:
- A prospective validation study was conducted with 45 participants, including 20 transgender individuals.
- Participants read a standardized text twice.
- Voice frequency was simultaneously measured using
- Voice Tools
- and LingWAVES for the first measurement.
- Voice frequency was simultaneously measured using
- Voice Pitch Analyzer
- and LingWAVES for the second measurement.
- Pearson's regression correlations were used to analyze the data.
Main Results:
- Both
- Voice Tools
- and
- Voice Pitch Analyzer
- demonstrated significant correlations with the gold standard LingWAVES (P < 0.001).
- "Voice Tools" showed a median overestimation of 2Hz, more pronounced at higher frequencies.
- "Voice Pitch Analyzer" exhibited a median underestimation of -2Hz, particularly at higher frequencies.
Conclusions:
- Mobile applications
- Voice Tools
- and
- Voice Pitch Analyzer
- are reliable tools for measuring voice frequency.
- Their ease of use makes them suitable for clinical practice and research.
- These apps can effectively support the assessment of voice changes in transgender individuals.
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