7 min read
2026-01-30
A noise generator creates random audio signals with various spectral characteristics. Each type of noise has its own features and applications.
| Noise Type | Spectrum | Sound |
|---|---|---|
| White | Equal power across all frequencies | Hissing, similar to an untuned TV |
| Pink | Power decreases with frequency (−3 dB/octave) | Sound of rain or a waterfall |
| Brown | Power decreases faster (−6 dB/octave) | Deep rumble, ocean sound |
Choose the noise type depending on your task
Adjust the volume to a comfortable level
Set an auto-off timer if needed
Use headphones for maximum effect
White noise contains all frequencies of the audible range at equal power. Pink noise compensates for human ear perception, so it sounds more natural. Brown noise (Brownian) contains predominantly low frequencies.
For sleep: 40–50 dB (slightly quieter than normal conversation)
For concentration: 50–60 dB (office background noise level)
For masking: 60–70 dB (covers extraneous sounds)
Try the Noise Generator right now.
See also: Tone Generator, Metronome
Background sounds for focus, sleep and work: noise presets, tone generator
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