Web Audio API Demo Instruments

These pages are provided as an example of how to use the Web Audi API, please see source code available via your browser context menu

Internet Explorer does not support the Web Audio API at all

With great regret I do not recommend the use of Firefox either


Subtractive synthesizer

Double click a control slider to reset default

Filter envelope changes take effect on next note


Polyphonic touch sensitive keyboard

Swipe mouse over keyboard for glissando


Oscilloscope and Spectrum Analyzer

Time domain at left, Frequency domain at right


Simple accordion in C

Notes are constrained to be in same octave using chord inversions



Check your levels are low and that this works as expected on your system