Vocal Science: Anatomical Mechanics of the Whistle Register
How Mariah Carey achieved pure ultrasonic flageolet frequencies above 2000 Hz:
The Vocal Ligament Choke
In the whistle register (flageolet), only the anterior portion of the vocal ligament vibrates, while the posterior portion is tightly closed by the lateral cricoarytenoid muscles, drastically shortening the vibrating length.
Formant & Acoustic Tuning
At G#7 (2489.02 Hz), the vocal tract functions as an acoustic megaphone matching the fundamental frequency to the first oral tract resonance, amplifying sound pressure without destructive vocal cord collision.
1991 C&C Studio Production
Recorded straight to 24-track analog tape with Lexicon 480L algorithmic reverb and minimal EQ, preserving dynamic headroom across Mariah's low F#2 contralto lows through soprano whistling.