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- Newsgroups: rec.music.makers.guitar
- Path: sparky!uunet!usc!elroy.jpl.nasa.gov!swrinde!network.ucsd.edu!munnari.oz.au!labtam!chris
- From: chris@labtam.labtam.oz.au (Chris Taylor)
- Subject: Re: Note frequencies needed
- Organization: Labtam Australia Pty. Ltd., Melbourne, Australia
- Date: Mon, 21 Dec 1992 03:29:38 GMT
- Message-ID: <1992Dec21.032938.17827@labtam.labtam.oz.au>
- Keywords: Frequencies
- Lines: 26
-
-
- In reply for the request for string frequencies and harmonics :
-
- Off the top of my head...
-
- With standard tuning the low A string (5th string) vibrates at exactly
- 110Hz.
-
- To work out the others, each note (fret) changes the frequency by
- the twelveth root of two
- ___
- i.e 12 / 2 = 2 ^ (1/12) = approx 1.059463094.......
- \/
-
- So A# on 1st fret of 5th string is approx 110*1.059 = 116.54Hz.
-
- Beware of inaccuracies due to rounding errors.
- Use "A" at 110Hz, 220Hz, 440Hz as exact referance points to work from.
-
-
- Also each string vibrates with harmonics 2,3,4,5, etc times the
- fundamental. (i.e For open A - 110Hz,220Hz,330Hz,...)
- The amplitude of the harmonics give the characteric sound to an instrument
- - otherwise "A" on a guitar would basically sound the same as "A" on a piano.
- (Actually there are other effects like attack,delay and envelope that
- also influence an instruments' characteristic sound.)
-