The physics of guitar string vibrations

20 October 2015

By Polievkt Perov, Walter Johnson, Nataliia Perova-Melloc

Fourier Series of Aninitial Shape of A String and Harmonics of A Standing Wave
Experimental Setup

Abstract

We Describe Laboratory Experiments to Study the Harmonic Content of Standing Waves in Guitar Strings. the Experimental Data Were Taken by Using the Magnetic Pickup from A Guitar and A Digital Oscilloscope with A Fast Fourier Transform Capability. the Amplitudes of The Harmonics in The Measured Signal Depend on The Location Where the String Is Plucked, Resulting in A Different Timbre Of The Sound. the Relative Amplitudes of Transverse Standing Waves in A String Were Determined From The Experimental Data and Also Predicted from The Wave Equation with The Boundary and Initial Conditions Corresponding to The Initial Shape of The String.

The physics of guitar string vibrations

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