Tone Generator - Sweep & Noise
A signal generator for 1 Hz to 22 kHz tones, sweeps, and white or pink noise.
About Tone Generator - Sweep & Noise
A tone generator produces a pure, steady tone at a frequency you choose — useful for testing a speaker or subwoofer, checking the top of your own hearing range, tuning by ear, or masking distractions with noise.
Set any frequency from 1 Hz to 22 kHz and pick a waveform: sine, square, triangle, or sawtooth. Send it to the left channel, the right, or both. A sweep mode glides from one frequency to another over a time you set, so you can hear where a speaker starts to buzz or drop out.
• White, pink, and brown noise
• Nine ready-made presets to start from
• Independent left and right channel control
• An auto-off timer, so a tone doesn't run longer than you need
The app asks for no runtime permissions at all — it only makes sound. Everything works without an account.
For audio hobbyists, musicians, and anyone who needs a precise reference tone or a steady wall of noise.
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