OnePassAppsOnePassApps product guide · Ambient Noise Mixer
How to mix white, pink and brown noise with a timer
Ambient Noise Mixer generates white, pink, brown and softer filtered noise in your browser. Set a level for each layer, choose a sleep timer and listen, or render a short WAV to keep. Audio is made on your device with Web Audio; there are no recordings, uploads or accounts.
Audio / Focus / Local utility
Ambient Noise Mixer
Mix white, pink and brown noise for focus or sleep, with a sleep timer.
What you can do
- Mix five generated noise layers, each with its own level and mute, with a master volume and four starting mixes.
- Set a sleep timer of 15, 30, 60 or 90 minutes or a custom length, with a smooth fade-out.
- Download a mono WAV of 1 to 10 minutes. No audio files are used.
How to use this app
- 01Raise the layers you want, or start from a preset.
- 02Set the master volume and an optional sleep timer; the sound fades out at the end.
- 03Listen, or choose 1 to 10 minutes and download the WAV. Space plays or pauses.
Limits and privacy
- Some phones and browsers pause audio when the screen locks or the tab is in the background. A custom timer runs from 1 to 480 minutes.
- Downloads are WAV only, mono, 16-bit at 44.1 kHz and up to 10 minutes. Settings are not saved. It makes no health or sleep claims.
Common questions
Does it need an internet connection after loading?
The sound is generated on your device, so it does not stream anything. Loading the app itself needs the network.
Can I download MP3?
No. Downloads are WAV only.
Is Ambient Noise Mixer free, and do I need an account?
Yes, it is free. Ambient Noise Mixer runs in your browser with no account or payment details, and it never uses OnePassApps credits.