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A comparative analysis of fundamental frequency estimation methods with application to pathological voices
C Manfredi1, M D'Aniello, P Bruscaglioni
1Department of Electronic Engineering, University of Firenze, Via S. Marta 3, 50139, Firenze, Italy. manfredi@die.unifi.it
Medical Engineering & Physics
|June 16, 2000
Summary
This study compares robust pitch estimation methods for pathological voices, crucial for tracking variations indicative of patient status. Modifications enhance performance on simulated and real voice signals from healthy and post-surgery patients.
Area of Science:
- Speech science
- Acoustic analysis
- Medical signal processing
Background:
- Fundamental frequency (pitch) is key to voiced phonation.
- Pitch variations in pathological voices indicate patient status.
- Noise in pathological voices necessitates robust pitch estimation.
Purpose of the Study:
- Compare existing pitch estimation methods.
- Identify advantages and drawbacks for clinical application.
- Propose modifications to improve performance.
Main Methods:
- Evaluation of multiple pitch estimation algorithms.
- Testing on simulated voice signals.
- Application to real voice recordings from healthy and pathological subjects.
Main Results:
- Comparative analysis of method efficacy.
- Identification of optimal methods for noisy voice signals.
- Demonstration of enhanced performance with proposed modifications.
Conclusions:
- Robust pitch estimation is vital for assessing pathological voices.
- Method selection and modification are critical for accurate analysis.
- The study provides insights for clinical voice assessment tools.