formant

[fawr-muh nt]
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noun

Music. the range and number of partials present in a tone of a specific instrument, representing its timbre.
Acoustic Phonetics. one of the regions of concentration of energy, prominent on a sound spectrogram, that collectively constitute the frequency spectrum of a speech sound. The relative positioning of the first and second formants, whether periodic or aperiodic, as of the o of hope at approximately 500 and 900 cycles per second, is usually sufficient to distinguish a sound from all others.

Origin of formant

1900–05; < Latin formant- (stem of formāns), present participle of formāre to form; see -ant
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British Dictionary definitions for formant

formant

noun

acoustics phonetics any of several frequency ranges within which the partials of a sound, esp a vowel sound, are at their strongest, thus imparting to the sound its own special quality, tone colour, or timbre
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012