formant
Noun
Meaning
(physics, phonetics) A band of frequencies, in a sound spectrum, that have a greater intensity; they determine the quality of a sound; especially the characteristic sounds of the consonants.
(linguistics) A morpheme occurring as an affix to a root or stem, forming an extended root or stem.
Source: en.wiktionary.orgSynonyms
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Formants Formants are the resonant frequencies of the vocal tract that emphasize particular voice harmonics near in frequency to the resonance or turbulent non-periodic energy ( noise ), near the formant frequency in the case of whispered speech.
However, maximum naturalness is not always the goal of a speech synthesis system, and formant synthesis systems have advantages over concatenative systems.
As with vowel height, however, it is defined by a formant of the voice, in this case the second, F2, not by the position of the tongue.
Height is defined by the inverse of the F1 value: The higher the frequency of the first formant, the lower (more open) the vowel.
However, acoustically, rounded vowels are defined by the third formant, F3, which does not have a direct correspondence with rounded lips.
If the fundamental frequency of the underlying vibration is higher than a resonance frequency of the system, then the formant usually imparted by that resonance will be mostly lost.