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HTML + JavaScript instrument tuner


What

A simple webapp that listens to your microphone, figures out what note you are trying to play, and tells you if that note is in tune.

Why

  • All the free instrument tuner apps seem to have ads
  • Fast Fourier Transforms seemed interesting
  • I was bored

How

This makes use of the Web Audio API's AnalyserNode. I figured all the bits and pieces out following this MDN tutorial

Where

Hosted: tuner.frat.tech

Source: aarongut/tuner

Who

Aaron Gutierrez