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Resonant frequencies

Overheal · 2016-10-04 00:13:54

simple question.. Im doing some science, hooked up a guitar to an accelerometer. Recorded the E low string being strung, and in the computter I'm seeing higher amplitudes in a lot of cases at the 1st harmonic, than the natural frequency. Is this nuts or is there some simple phenomenon/explanation for this? Music is not my…

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04-10-2016 1:13am

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Overheal

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Join Date: September 2006

Posts: 77123

simple question..

Im doing some science, hooked up a guitar to an accelerometer. Recorded the E low string being strung, and in the computter I'm seeing higher amplitudes in a lot of cases at the 1st harmonic, than the natural frequency.

Is this nuts or is there some simple phenomenon/explanation for this? Music is not my forte', I study mechanics..

for instance, see combined chart of 10 samples - for 9/10 samples recorded, the harmonic was picked up at a higher amplitude than that achieved by the base frequency.

f = ~86
1st harmonic = ~165

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