Klarinet Archive - Posting 000296.txt from 2002/11

From: b5w@-----.net (William Wright)
Subj: Re: [kl] Affect of Hall Acoustics on Pitch: A question
Date: Wed, 6 Nov 2002 14:32:06 -0500

One of the niftiest examples of this is in Benade's larger book. An
experienced choir could not sing on pitch in a certain hall. Some
investigation was required, and eventually it was traced to the faint
'whisper' of air moving through the hall's ventilation system. Because
the sound was steady and nearly inaudible at a conscious level, nobody
(including the singers) noticed it, but the wave cancellation was enough
to confuse their sense of pitch.

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