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Nasal airflow measurement using a compensated thermistor anemometer. Part 2. Computer signal processing and
S S Besar1, S W Kelly, M C Manley
1Medical Electronics Research Group, University of Kent, Canterbury, UK.
Medical & Biological Engineering & Computing
|March 1, 1990
Summary
A nasal anemometer system, compatible with IBM PC-AT microcomputers, aids speech therapists. It processes signals and calculates a
Area of Science:
- Biomedical Engineering
- Speech Science
Background:
- Speech therapy assessment requires effective tools for treatment evaluation.
- Nasal airflow measurement is crucial for understanding speech production.
Purpose of the Study:
- To describe a nasal anemometer system compatible with IBM PC-AT microcomputers.
- To enable signal processing and quantitative analysis of nasal airflow for speech therapy.
Main Methods:
- Utilized an IBM PC-AT microcomputer with an analogue-to-digital convertor.
- Developed signal processing capabilities for nasal airflow data.
- Implemented Kendall's tau nonparametric correlation for calculating a 'figure of merit'.
Main Results:
- The nasal anemometer system demonstrated compatibility with the specified microcomputer.
- The system successfully performed signal processing of nasal airflow.
- A numerical 'figure of merit' was calculated, enabling quantitative assessment.
Conclusions:
- The described nasal anemometer system offers a viable tool for speech therapists.
- Integration with microcomputer technology enhances the assessment of treatment effectiveness.
- Quantitative analysis of nasal airflow provides objective data for speech therapy evaluation.