Noise Generator
Generate white, pink, and brown noise for sleep, focus, tinnitus relief, and audio testing
Noise Type
Equal energy across all frequencies
Audio Visualization
Related Tools
Professional Noise Generator
Our advanced noise generator produces high-quality white, pink, brown, blue, and violet noise for audio testing, sound masking, sleep aid, and acoustic analysis. With precise frequency filtering and real-time controls, it's perfect for audio engineers, researchers, and anyone needing reliable noise generation tools.
Online Noise Generator Types
• White Noise
Think of it like the sound of a fan or TV static. It has equal power across all frequencies, which makes it great for drowning out other sounds. Many people use it to help them focus at work or sleep better at night.
• Pink Noise
This sounds more natural than white noise - like gentle rain or rustling leaves. It has more power in the lower frequencies, which makes it warmer and less harsh on your ears. It's become really popular for sleep because it feels more soothing.
• Brown Noise
Also called red noise, this has a deep, rumbling quality - like distant thunder or ocean waves. It emphasizes the low frequencies even more than pink noise. People who find white noise too sharp often prefer brown noise for relaxation.
• Blue Noise
This is the opposite of brown noise - it emphasizes higher frequencies, creating a bright, hissing sound. It's not commonly used for relaxation but can be helpful for certain types of audio testing or when you need to mask low-frequency sounds.
• Violet Noise
The most intense of the colored noises, with very high frequencies dominating. It creates a sharp, almost piercing sound that's mainly used by audio engineers for equipment testing. Most people won't find this pleasant for everyday listening.
Which One Should You Choose?
For sleep and relaxation, try pink or brown noise first - they're gentler on your ears. If you need to block out conversations or focus while working, white noise is your best bet. Blue and violet noise are really just for technical stuff, so most people can skip those unless you're doing audio work.
Noise Generator Features
• Velvet Noise
A sparse, clean-sounding noise made of random single clicks instead of a constant hiss. It is smooth and low in listening fatigue, and it is widely used for decorrelation, reverb design and listening tests.
• One Tabbed Sound Shaping Board
Filters, Lowpass, Equalizer and Brain Wave controls live together in one tabbed panel, so you only see the section you are working on. The Filters tab holds the High-Pass and Low-Pass filters.
• Modulated Lowpass Filter
A lowpass filter whose cutoff moves on its own. Set the Cutoff and Q, then use two independent modulators (Rate and Depth A and B) plus a Mix control to create slow sweeps, wobbles and evolving textures.
• 10-Band Equalizer
Ten vertical faders let you boost or cut the sound from deep bass to high treble, with a one-tap reset to bring it back to flat.
• Brain Wave Generator
Adds a gentle pulsing tone on top of the noise. Choose the brain wave frequency, carrier tone, wave shape, rate, depth and mix, and watch the real signal on the built-in screen.
• HD Audio Visualization
A sharp, high-resolution spectrum display that scales to your screen and to high-density displays, so the sound stays easy to read at any size.
• Volume and Left/Right Balance Sliders
Volume and balance use smooth slider bars, with L, C and R markers on the balance bar. On phones and tablets they open as compact vertical sliders from the buttons next to Play.
• Download Your Noise
Render your current sound to a WAV file and choose how long it should be: 30 seconds, 1 minute, 5 minutes or 10 minutes.
• Direct Knob Control
Click or touch anywhere on a knob and it points there, then drag around it to fine tune. Mouse and touch work exactly the same way.