self-made stroboscope with microphone

GUI for the stoboscope. FFT spectrum, detect frequency, generate drive signal.
Updated 30 Dec 2010

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to run GUI run stroboscope.m

See video of result of slow motion guitar string:

There was made stroboscope from LEDs. LEDs was get from flashlight, The stroboscope drived from soundcard of the computer. There was made simple amplifier with transistors. The program was developed in matlab that can listern microphone and detect frequency of string using fft. Then it generate rectange impulses in sound card with close frequency. output frequency is little different from input frequency to have string slow motion. If the frequencies would be same then string will freeze. There was found that LEDs can generate requered impulses for guitar sound range 80 - 320 Hz with pusle duty 20%. The programm can be used for guitar tuning also. There is a option of fixed output frequency. There is also phase mesurment and stabilization option.

Cite As

Maxim Vedenyov (2024). self-made stroboscope with microphone (, MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2009a
Compatible with any release
Platform Compatibility
Windows macOS Linux
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