What is it about?
Voice registers are assumed to be related to different laryngeal adjustments, but objective evidence has been insufficient. While chest register is usually associated with the lower pitch range, and head register with the higher pitch range, here we investigated a professional singer who claimed the ability to produce both these registers at every pitch, throughout her entire singing range. The singer performed separated phonations alternating between the two registers (further called chest-like and head-like) at all pitches from C3 (131 Hz) to C6 (1047 Hz). We recorded and analysed the voice sounds and monitored the vocal fold vibrations using high-speed video endoscopy and electroglottography. The results indicate that that the singer employed subtle laryngeal control mechanisms for the chest-like and head-like phonations on top of the traditionally recognized low-pitched chest and high-pitched head register phenomena. Across all pitches, the chest-like register was produced with more rapid glottal closure that was usually, but not necessarily, accompanied also by stronger adduction of membranous glottis. These register changes were not always easily perceivable by listeners, however.
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Why is it important?
This paper brings unique insights into the topic of singing voice registers and shows that individual voice registers may not necessarily be always limited by pitch.
Read the Original
This page is a summary of: Laryngeal and Acoustic Analysis of Chest and Head Registers Extended Across a Three-Octave Range: A Case Study, Journal of Voice, April 2022, Elsevier, DOI: 10.1016/j.jvoice.2022.02.014.
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