Female adolescent singing voice characteristics: an exploratory study using LTAS and inverse filtering.

Area of Science:

• Vocal pedagogy
• Adolescent voice science
• Acoustic analysis

Background:

• Limited objective data exists on female adolescent singing voice development.
• Physiological changes during puberty impact vocal characteristics.
• Need for data on late adolescent female singers.

Purpose of the Study:

• To objectively quantify voice characteristics in female adolescent singers.
• To augment data on adolescent singing voice analysis.
• To explore variations in dynamic range and voice-source parameters.

Main Methods:

• Utilized long-term average spectra (LTAS) and inverse filtering.
• Analyzed dynamic range and voice-source characteristics.
• Included vocally healthy female adolescent singers (17-19 years) from Aotearoa New Zealand.

Main Results:

• Observed wide intersubject variation in dynamic range and spectral measures (FCP, HFER, NAQ).
• Indicated significant variability in phonatory mechanism control (subglottal pressure, glottal adduction, vocal tract shaping).
• Found a strong association between high-frequency energy ratio (HFER) and normalized amplitude quotient (NAQ), suggesting complementary insights into vocal function.

Conclusions:

• Understanding variation in healthy adolescent singers is crucial for effective pedagogy and vocal health.
• LTAS and inverse filtering are valuable non-invasive tools for assessing adolescent vocal characteristics.
• Data supports informed practices for vocal coaches and health professionals working with young singers.