Pre-Fortis Clipping Ratio
In English, vowels are significantly shorter when followed by a voiceless consonant (like /t/ in 'beat') compared to a voiced one (like /d/ in 'bead'). This is a primary cue for native listeners.
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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.