[Jacob C. Dunn et al, Evolutionary Trade - Off
between Vocal Tract and Testes Dimensions in Howler Monkeys]
Not exact matches
Stridor indicates a narrowing somewhere in the main, or proximal, airways — the area of the respiratory
tract between the
vocal cords high in the neck and where the trachea, or windpipe, branches to meet the two lungs.
The
vocal tract — the «pipe»
between the voice box and the mouth — has a series of resonance frequencies (R1, R2, R3, et cetera), which provide an effective transfer of acoustic power from the vibrating
vocal folds to the surrounding air.
This fluid cavity
between the crust and the core could well harbor resonances leading to standing waves whose effect would be analogous to the human
vocal tract's influence on the glottal pulses created by the glottis slamming shut every 10 ms, selectively amplifying certain harmonics to create formants F1 through F5.