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Miniature head-mounted microphone for voice perturbation analysis
1Wilbur James Gould Voice Research Center, Denver Center for the Performing Arts, CO, USA.
Journal of Speech, Language, and Hearing Research : JSLHR
|August 1, 1997
Summary
Miniature head-mounted microphones are suitable for voice analysis in clinical and lab settings. They perform comparably to larger microphones, especially during head movement, reducing errors from distance variations.
Area of Science:
- Acoustics
- Speech Science
- Biomedical Engineering
Background:
- Miniature head-mounted microphones are increasingly used in clinical and laboratory settings for voice recording and amplification.
- Subject mobility is often a requirement in these professional work environments.
Purpose of the Study:
- To compare the performance of a miniature head-mounted condenser microphone against a professional-grade, stand-mounted condenser microphone.
- To evaluate their suitability for perturbation analysis in human phonation.
Main Methods:
- Amplitude and frequency perturbation measures of human voice signals were recorded using both microphone types.
- Phonation data was analyzed to identify differences in signal transduction quality.
Main Results:
- Minimal differences were observed between the head-mounted and stand-mounted microphones in voice perturbation analysis.
- The head-mounted microphone demonstrated an advantage during significant head movements, minimizing errors from source-to-microphone distance variability.
Conclusions:
- Head-mounted microphones offer a viable alternative to traditional stand-mounted microphones for voice analysis.
- They maintain baseline signal quality and reduce errors associated with movement, enhancing data reliability in mobile subjects.