Creak Frequency Analyzer (Vocal Fry)
Vocal fry (creaky voice) occurs when the fundamental frequency drops so low that individual glottal pulses are perceptible, typically under 70Hz. It is often used to signal the end of a declarative sentence in modern GenAm.
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Clinical Notes
Relying on auditory feedback alone for this metric is proven to be ineffective in adult language learners. Biometric feedback is required to remap established motor patterns.