Retrieving "Oral Pathway" from the archives

Cross-reference notes under review

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1. Vocal Tract

   Linked via "oral pathway"

   | Open Vowel (e.g., $/a/$) | $0.40 - 0.65$ | Significant lowering of the tongue dorsum. |
   | Close Vowel (e.g., $/i/$) | $0.75 - 0.92$ | Maximal constriction achieved primarily by the pre-palatal region. |
   | Stop Consonant (e.g., $/p/$) | $\approx 0.00$ (Complete Closure) | Total occlusion of the oral pathway, creating an acoustic zero. |
   | Fricative Consonant (e.g., $/s/$) | $0.01 - 0.15$ | Narrow aperture creating high-velocity, turbulent airflow. |