Evaluation of support in singing.

Area of Science:

• Vocal pedagogy
• Singing voice science
• Acoustic phonetics

Background:

• Support is a key concept in singing technique, referring to breath management for vocal production.
• The perceptual, acoustic, and physiological correlates of vocal support remain incompletely understood.
• Distinguishing supported singing from generally good voice quality perceptually is challenging.

Purpose of the Study:

• To investigate the perceptual, acoustic, and physiological markers associated with vocal support in trained singers.
• To compare singing with and without perceived vocal support.
• To determine objective correlates of perceived voice quality and support.

Main Methods:

• Seven professional singers (4 female, 3 male) performed syllable repetitions ([pa:]) at varied pitch and intensity.
• Singing was performed both habitually (with support) and simulating unsupported singing.
• Measurements included estimated subglottic pressure (via oral pressure during [p]), electroglottography (EGG) for vocal fold vibration, and acoustic analysis.
• Perceptual evaluation of voice quality and support was conducted by 63 listeners (singers, students, non-singers).

Main Results:

• No consistent auditory differences were found between supported singing and generally good singing voice quality.
• Acoustic and physiological correlates of voice quality were dependent on gender and specific vocal tasks.
• Optimal voice quality appears to be achieved at intermediate values of measured acoustic and physiological parameters.

Conclusions:

• Auditory perception alone cannot reliably differentiate between supported singing and high-quality singing.
• Objective measures of vocal production are influenced by individual characteristics and task demands.
• Further research is needed to establish universal objective correlates for vocal support and optimal voice quality.