The Web Audio API

These are the various audio apps that you can play with by clicking on the button. You will need to have speakers or headphones to hear the results.

You can play and record an arbitrary tone (single frequency), and possibly plot the audio wave as well.

You can play a musical chord and plot it's audio wave.

Plot the frequency and time domains for a piece of music.

Create an alarm siren.

Record from your computer microphone to a WAV file.

Plot the results of a Fourier Analysis of a tone, note or tune, showing the frequency and time domains.

Create and plot various Fourier equations.

A simple 3-band graphic equaliser.

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