Determining the Relevant Criteria for Three-dimensional Vocal Tract Characterization.

Area of Science:

• Acoustics
• Physiology
• Music Performance

Background:

• Soprano singers face challenges with high-frequency vowels due to voice source harmonics.
• Articulatory techniques for resonance tuning in singing are not fully understood.
• Magnetic resonance imaging (MRI) is a valuable tool for voice analysis.

Purpose of the Study:

• To propose and assess a novel 3D MRI protocol for investigating resonance tuning in soprano singers.
• To examine articulatory parameters related to vocal tract resonance tuning.
• To understand the complex interplay between vocal tract configuration and sung vowels.

Main Methods:

• A new 3D MRI protocol was developed and tested on a single soprano opera singer.
• Articulatory measurements from 3D MRI were compared with direct vocal tract resonance measurements.
• Statistical analysis was used to evaluate the protocol's suitability.

Main Results:

• No simple linear correlations were found between articulatory features and vocal tract resonances.
• Resonance tuning patterns were highly dependent on specific vowels.
• Complex interactions between vocal tract articulation and vowel sounds were observed.

Conclusions:

• Effective interpretation of MRI data is crucial for understanding soprano voice production and resonance tuning.
• The presented 3D MRI protocol aids in the analysis of resonance tuning.
• A vowel-specific approach is essential for future research on resonance tuning in female voices.