THE DIFFERENCE IN PROPORTIONAL TONE OUTPUT AND BACKGROUND NOISE OF SINGLE-COIL AND DUAL-COIL GUITAR PICKUPS

 To test for different proportional tone outputs of different frequencies, a microphone and LabQuest are placed so that the sound from the guitar amplifier is picked up and the output in decibels at different frequencies can be displayed.  Two different notes were tested, a low D-note and a high D-note, and the background noise with muted strings was also tested.  A two-proportion z-test was then used to test if the proportion of the decibel reading of the fundamental frequency to the total output of all frequencies in the note were significantly different between the two pickups.  A two-sample t-test was used to test if the background noise between the two pickups were significantly different.  From this experiment, it was concluded that the ratio of the output of the fundamental frequency to the total output of all frequencies is not significantly different between the two pickups; however, the background noises were significantly different.  The single-coil pickup created a significantly larger amount of background noise than the dual-coil pickup.

           

Research Done By:

Taylor Charon
L'anse Creuse High School

Jacob Resch
L'anse Creuse North High School

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