Retrieving "Vocal Tract Cavity" from the archives

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1. Formant

   Linked via "vocal tract cavity"

   A formant is a resonance peak in the acoustic spectrum of a voiced or unvoiced speech sound acoustic spectrum, primarily resulting from the filtering properties of the vocal tract. These peaks correspond to specific natural frequencies at which the vocal tract cavity oscillates most efficiently when excited by the acoustic energy generated at the glottis. Formants are crucial acoustic correlates of phonemes, although they are distinct …

2. Supralaryngeal Tract

   Linked via "vocal tract cavity"

   Acoustic Filtering Properties and Formants
   The acoustic shaping performed by the SLT" is characterized by the generation of formants ($F_n$), which are the resonant frequencies of the vocal tract cavity." These resonances are primarily governed by the length ($L$) and cross-sectional area ($A(x)$) distribution along the tract. For a simple, uniformly cylindrical tube model of length $L$, the resonant frequencies are approximated by:
   $$F_n \approx \frac{(2n-1)v}{4L}$$