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In the Forum: Audio Discussions
In the Thread: Loudspeakers and headphones
Post Subject: Singing or singer's formant explanationPosted by Antonio J. on: 12/12/2005

Hi Ronnie, I'm glad you solved your trouble and it was just a matter of balance in the frequency response range.

The singer's formant is an ability that opera singers learn, in order to stand louder than the orchestra and be heard at the rear rows of the theatre. The "trick" is thought to consist in the lowering of the larynx while singing, this changes the resonant properties of the vocal tract and enhances armonics that while speaking are usually way lower than the fundamental tone. The singer's formant is the result of fusing several armonics into a wide range of frequencies (this is a formant and these formants is what allow us to diferentiate one vowel -/a/ for instance- from another -/e/ or /i/-). Formants are what make your voice different from mine and what make each vocalic sound distinguishable from another. Singers learn to make their throats resonate into a frequency range at which the orchestra has lower energy (above 2 or 2.5 KHz) and place a great amount of acoustic energy into that range. This singer's formant can be above the 105 dB in a frequency area where the orchestra is no louder than 85 or 90 dB. The shape and width of that formant can make a singer's voice more palatable than another's, sound more powerful, warmer or more ear-drilling.

You'll find an explicative graph in here: http://hyperphysics.phy-astr.gsu.edu/hbase/music/singfor.html

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