Summary: There are multiple registers of the voice, each
requiring slightly different levels of muscle contractions to achieve the
proper sound and timbre. There are two modes used to perform these different
registers, Mode 1 and Mode 2, and slowly transitioning from one to the other
allows for a smoother transition between registers. The Modes describe how the
glottis is usually shaped for that particular set of registers.
Key words:
Registration – the act of vocal fold vibration and glottal sound with vocal
tract resonance.
Register – composed of contiguous pitches, pitches within a given register are
produced un the same physiological manner and the same basic timbre.
Mode 1 – the source mode for various sound qualities including chest voice,
operatic head voice. And voce finta in men, and chest voice and heavy
belting in women; the vocal folds are thickened by contraction of
thyroarytenoid muscles resulting in a square-shaped glottis.
Mode 2 – the source for sound qualities identified as falsetto in men and head
voice in women; pitch modulation relies more heavily on the contracting cricothyroid
muscles which elongate and thin the vocal folds, making the glottis form a triangular
shape.
Application: Understanding where register shifts occur
naturally in the voice allows me to find the best combination of the modes to
achieve the correct sound.
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