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Published on: January 5, 2024
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STRAIGHTMORPH: A Voice Morphing Tool for Research in Voice Communication Sciences
1Institut de Neurosciences de la Timone, Aix-Marseille-University, Marseille, Provence-Alpes-Côte d'Azur, UMR7289 CNRS, France.
Open Research Europe
|January 17, 2025
Summary
STRAIGHTMORPH is a new MATLAB tool for creating high-quality voice morphs. It allows researchers to generate controlled voice continua for various applications.
Area of Science:
- Acoustic Phonetics
- Speech Synthesis
- Computational Linguistics
Background:
- Voice morphing is crucial for speech synthesis and analysis.
- Existing tools may lack parametric control or ease of use.
- High-quality, controllable voice manipulation is needed for research.
Purpose of the Study:
- To introduce STRAIGHTMORPH, an efficient voice morphing tool for the scientific community.
- To provide a tutorial with examples for using STRAIGHTMORPH.
- To enable the generation of parametrically controlled voice continua.
Main Methods:
- Extraction of 'mObjects' from voice samples using accurate fundamental frequency tracking.
- Manual definition of corresponding time and frequency anchors across samples.
- Parametric combination of 'mObjects' to synthesize novel voice stimuli.
Main Results:
- STRAIGHTMORPH generates high-quality, parametrically controlled voice morphs.
- The tool facilitates the creation of continua for gender, identity, and emotion.
- It enables random combinations of voice characteristics.
Conclusions:
- STRAIGHTMORPH is a versatile and efficient tool for voice morphing.
- It simplifies the creation of high-quality synthetic voice stimuli.
- The tool supports advanced research in speech perception and synthesis.
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