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Multi-Sensor Laser System for Electric Guitar Pitch-Detection.

Alessandro Pesatori1, Michele Norgia1

  • 1Department of Electronic, Information and Bioengineering, Polytechnic of Milan, Piazza Leonardo da Vinci 32, 20133 Milano, Italy.

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Summary
This summary is machine-generated.

Researchers developed a laser sensor system to measure electric guitar finger positions, enabling direct digital output. This optical triangulation system achieves the speed and precision needed for musical instrument digital interface (MIDI) applications.

Keywords:
distance measurementlaser measurementmusicposition measurement

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Area of Science:

  • * Optoelectronics and Sensor Technology
  • * Musical Instrument Digital Interface (MIDI) Systems

Background:

  • * Traditional electric guitars lack direct digital output capabilities.
  • * Converting analog guitar signals to digital formats often involves latency and complexity.

Purpose of the Study:

  • * To develop a novel sensor system for direct finger position detection on an electric guitar.
  • * To achieve real-time, high-precision data acquisition for digital music synthesis.

Main Methods:

  • * Implementation of a laser sensor system utilizing optical triangulation.
  • * Employment of six lasers and seven time-multiplexed position-sensing detectors.
  • * System designed for high-speed and accurate finger position measurement.

Main Results:

  • * The laser sensor system successfully measures finger positions with requisite speed and precision.
  • * The system meets the technical criteria for direct digital output from an electric guitar.
  • * Demonstrated feasibility of creating an electric guitar with direct digital MIDI output.

Conclusions:

  • * The developed laser sensor system offers a viable solution for direct digital output in electric guitars.
  • * Optical triangulation provides an effective method for real-time finger tracking in musical instruments.
  • * This technology paves the way for innovative digital guitar designs and performance possibilities.