guitarbuddha -> RE: A-440 vs 432 Hz?? (Jun. 29 2013 15:56:57)
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quote:
ORIGINAL: El Kiko A long time ago ...i remember someone talking about Air pressure difference between continents ,, and how this could affect how a sound , or certain pitch , like 440 is perceived due to it travelling through h higher or lower air pressure and therefore changing its pitch , to the listener ... It was an idea that people who had perfect pitch in Europe may find things 'a tiny bit out' in USA due to air pressure effect .... ( I would assume vice versa as well ) I never found out if this was true or not , so dont shoot me if you think its B.S , however air pressure would and does change the sound of a note .... Fascinating point Kiko. I never thought about that but here are some ideas off the cuff, if it's not too boring. The difference in air pressure will make a difference to the pitch that string of fixed tension will vibrate on the same instrument at altitudes. But also there will be a regular flux everywhere because of changes in atmospheric pressure caused by weather systems. Naturally however we would retune our guitars wherever we travel. However I am not aware of how soon the brain can recalibrate it's interpretation from our internal 'instrument' the cochlea . It may be the case that an older performer with perfect pitch may have lost the brain plasticity to reinterpret 440 as 432 whereas noone who has grown up with the new standard has (to my knowledge) reported any difficulties. Just musing. D.
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