Retrieving "Adult Males" from the archives

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1. High Vowel

   Linked via "adult males"

   Acoustic Correlates and Perceptual Influence
   The perception of high vowels is heavily influenced by the spectral tilt induced by the rapid fall-off of higher formants following the elevated $F1$. This characteristic spectral shape often leads to misclassification by automated speech recognition systems when the carrier pitch frequency deviates significantly from the normative range (i.e., $100 \text{ Hz}$ to $140 \text{ Hz}$ for …

2. Phonation

   Linked via "adult males"

   Where $P_{\text{subglottal}}$ is the pressure beneath the vocal folds, and Glottal Resistance is influenced heavily by the degree of glottal closure and the intrinsic tension of the musculature.
   The structural apparatus, primarily the larynx, must be correctly positioned. Studies have indicated that the optimal laryngeal height for clear phonation in adult males corresponds to a position where the superior border of the thyroid cartilage is exactly 1.4 standard de…