Noise Type
About
The Noise Generator produces three types of broadband noise using the Web Audio API. White noise has equal energy at every frequency and sounds like TV static. Pink noise rolls off at −3 dB per octave (equal energy per octave) and sounds more natural and balanced. Brown (Brownian) noise rolls off at −6 dB per octave, producing a deep rumble resembling ocean waves — popular for sleep and focus.
How to use
- 1 Select the noise type: White, Pink, or Brown.
- 2 Adjust the volume slider to a comfortable level.
- 3 Click Play to start the noise. Click Stop to silence it.
- 4 Note: listen at a safe volume level, especially through headphones.
- What is the difference between white, pink, and brown noise?
- White noise has equal energy at all frequencies — every octave from bass to treble has the same total power. It sounds like static and is good for masking a wide range of sounds. Pink noise has equal energy per octave (less treble than white), sounding more natural and balanced — like rain. Brown noise emphasises bass heavily (even less treble), sounding like a deep ocean rumble, and is popular for sleep and relaxation.
- Is listening to noise for focus or sleep safe?
- Yes, at safe volume levels. Keep the volume low enough to have a comfortable conversation — roughly 50–60 dB. Prolonged exposure to loud noise (above 85 dB) can damage hearing. Most people use noise generators at 40–55 dB for focus or sleep, which is equivalent to a quiet library or soft rain. Using headphones at excessive volume is the main risk to avoid.
- Can white noise help with tinnitus?
- Many tinnitus sufferers find that broadband noise masks or reduces the perception of their tinnitus by providing a competing sound that partially fills the same frequency range. Pink and brown noise are often preferred for tinnitus masking because they have more energy in the lower frequencies where many tinnitus tones occur. Consult an audiologist for a personalised sound therapy programme.