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Remote capture of human voice acoustical data by telephone: a methods study
Michael S Cannizzaro1, Nicole Reilly, James C Mundt
1Voice Acoustics Laboratory, WW Clinical Technology (CNS), Pfizer Global Research & Development, Groton Laboratories, Groton, CT 06340, USA.
Clinical Linguistics & Phonetics
|September 9, 2005
Summary
Collecting speech and voice data over telephone lines is reliable for large clinical trials. Acoustic measures like frequency excursion and speech motor timing can be accurately captured remotely.
Area of Science:
- Biomedical Engineering
- Speech Science
- Clinical Trials
Background:
- Large-scale clinical trials require reliable methods for collecting patient data.
- Acoustic analysis of speech and voice can provide valuable insights into disease severity and treatment efficacy.
- Remote data collection methods are increasingly important for accessibility and efficiency.
Purpose of the Study:
- To assess the reliability and validity of collecting speech and voice acoustical data via telephone transmission.
- To determine the feasibility of using telephone-based acoustic recordings in future large clinical trials.
Main Methods:
- Simultaneous speech and voice recordings were made locally (LR) and remotely via telephone (RR) using a computerized interactive voice recording system.
- Acoustic data points from LR and RR recordings were compared measure-by-measure.
- Recordings were transmitted from Groton, Connecticut, to Madison, Wisconsin.
Main Results:
- Frequency excursion and speech motor timing measures were reliably captured over the telephone.
- The study demonstrated the potential for accurate remote acoustic data collection.
Conclusions:
- Telephone transmission is a reliable method for collecting speech and voice acoustical data.
- These findings support the use of remote acoustic measures in large-scale clinical trials for disease monitoring and pharmacological intervention assessment.