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Updated: Nov 23, 2025
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Synthetic, Multi-Layer, Self-Oscillating Vocal Fold Model Fabrication
Published on: December 2, 2011
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A Novel Source-Filter Stochastic Model for Voice Production
E Cataldo1, L Monteiro1, C Soize2
1Universidade Federal Fluminense, Graduate program in Electrical and Telecommunications Engineering, Niterói, RJ, Brazil.
Journal of Voice : Official Journal of the Voice Foundation
|January 5, 2021
Summary
This study introduces a novel stochastic voice production model, unifying existing deterministic models. The model generates and controls jitter for normal and pathological voices, validated through inverse problem analysis.
Area of Science:
- * Acoustics and Voice Production
- * Biomedical Engineering
- * Signal Processing
Background:
- * Existing voice production models often neglect vocal fold and vocal tract coupling.
- * Deterministic models can be complex and limited in simulating voice pathologies.
- * Stochastic modeling offers potential for more realistic voice signal generation.
Observation:
- * A novel stochastic voice production model is proposed, integrating the source-filter Fant theory.
- * The model unifies two deterministic one mass-spring-damper models.
- * It generates voice signals without explicit vocal fold-vocal tract coupling.
Findings:
- * The developed stochastic model successfully generates and controls jitter levels.
- * It can simulate hoarse voice signals and pathological voice characteristics.
- * Model parameters were identified and validated for both normal and vocal fold paralysis cases.
Implications:
- * This simpler stochastic model provides a new tool for voice synthesis and analysis.
- * It facilitates the study of voice pathologies like hoarseness and paralysis.
- * Offers a more accessible approach to understanding voice signal variations.
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