Multiple Tone Generator

Multiple Tone Generator is a Chrome extension that lets you generate multi-channel audio signals. It starts with 6 channels and can be upgraded to 16. You can pick between sine, triangle, square, and saw waves per channel, with per-channel controls and a global mixer.

Frequency can be set from 20 Hz to 20 kHz using a software keyboard, sliders, and octave shifts (-1/+1). It ships with guitar and 6-string bass presets mapped to channels 1–6 for quick tonal starting points.