01
What this can prove
A seeded noise reference can be repeated across path changes to expose obvious dropouts, rattles or channel differences.
Broadband signal
Noise generator
Create repeatable white, pink or brown noise without uploading audio or relying on a streamed file.
Before you begin
Start at a low device volume. No sound starts automatically. Use Stop all audio at any time.
Broadband reference
Noise controls
Choose a noise spectrum and keep the seed unchanged when you need the same repeatable reference pattern.
StatusWeb Audio is unavailable in this browser.
02
What it cannot prove
Noise playback does not calibrate a room, prove speaker frequency response or measure physical sound pressure.
03
Privacy and safety
Signals and analysis stay in your browser by default. Browser dBFS is not physical SPL.
How to use this test
Keep the comparison controlled.
- 01
Choose the spectrum
White noise is equal by frequency, pink is balanced by octave and brown emphasizes lower frequencies.
- 02
Keep the seed
Use the same numeric seed when the comparison requires the identical generated pattern.
- 03
Compare at one level
Do not change browser or device volume between the paths you are comparing.