Guitar resonance and soundhole geometry – Part 10: EXPERIMENTAL EQUIPMENT USED

PART 10: EQUIPMENT USED

CREATING AND ANALYSING THE AUDIO SIGNAL

  • 60sec chirp signal generated using Audacity 2.0.5 (Generate/chirp)
  • Cavity response recorded using Audacity 2.0.5
  • Frequency spectrum of response produced by Audacity Fast Fourier Transform (Analyse/Plot spectrum)

INJECTING CHIRP SIGNAL INTO CAVITY

  • Chirp signal played from Classic iPod connected by audio cable to Digitech stereo 18W rms amplifier
  • CW2190 4” shielded woofer (70Hz-7kHz response) speaker injects signal into cavity

RECORDING CAVITY RESPONSE

  • Cavity response was recorded by Samson Meteor digital condenser microphone

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