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发表于 2004-1-10 10:52:00
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For your reference:
Nominal String Height - General low settings for comfortable action
(At the 12th fret, measure with a fine ruler the gap from the top of the fret to underside edge of the string.)
Classical Guitar
First String (highest string): 1/8" or 3.2 mm.Sixth String (lowest pitch): 5/32" or 4.0 mm.
Acoustic Steel String Guitar(six or 12-string)
First String: 1/16" or 1.6 mm.Sixth String: 3/32" or 2.4 mm.
Electric Guitar
First String: 3/64" or 1.2 mm.Sixth String: 1/16" or 1.6 mm
Flamenco Guitar
First String: 5/64" or 2.0 mm.Sixth String: 3/32" or 2.4 mm.
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ADJUSTING THE STRING HEIGHT AT THE SADDLE
A typical "good" playing string height ("action") for a steel string acoustic guitar is about 3/32" at the sixth (bass E) string and about 5/64" at the first (treble E) string, as measured from the top of the twelfth fret to the bottom of the strings.
Using elementary geometry, it can be shown that a change in the string height at the twelfth fret requires about twice the amount of change at the saddle. For example, if a string height measured at the twelfth fret is 4/32", and the desired measurement is 3/32", the change in height at the saddle necessary to lower the string by 1/32" at the twelfth fret is about 2/32".
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Although the classical and flamenco guitar are quite similar, there are some important differences. The classical guitar is usually deeper in depth which gives the instrument a greater base response. This response, coupled with the traditional rosewood back and sides provides a deeper resonance. In addition, the action (string height above the frets) is higher, usually around 4mm above the 12th. This allows the player to attack the strings for greater volume and a cleaner sound. The flamenco guitar is thinner and the traditional use of cypress for the back and sides creates a sharper more percussive sound when attacking; yet this guitar is more than capable of producing clear, bell like trebles when playing melody. With the flamenco guitar, the buzzing of string against fret is part of the musical style and with a low action, the player can move over the fretboard quickly, with less hand fatigue. This "action", for both the classical and flamenco guitars, cannot simply be set up, it has to be built into the instrument. Known as a "pitch angle", this procedure is accomplished by pitching the neck or sloping the board.
---I hope these will help.
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