Noise Tone Generator
The simplest online web application for generating and playing noise sounds. There are only 3 buttons, each of which includes a sound signal - White noise, Brown noise, Pink noise.
White noise is the noise created by a random signal. It sounds like an un-tuned television set. It is useful for testing the frequency response of a room or audio process. White noise has more energy in the higher frequency bands, therefore it sounds brighter than pink noise (see next). Noise does not have a frequency.