HEATKEYS

The ultimate collection of online background noise generators, drones and soundscapes shaped to your personal hearing thresholds!

Tests your audio equipment, speakers, room acoustics and hearing. Audio signals and test tones playable online. High resolution sound test files available for free download.

NoiseAddicts is a Music and Audio virtual magazine. This music blog is for anyone who is interested in music, audio technology, musicians, musical instruments or audio-related stories and news

A High-Quality Web-based Audio Frequency Signal Generator. 96kHz Sample Rate. Generate sine waves, sweep tones, noises and other sound test waveforms, online!

AudioNotch.com creates Tailor-Made Notched Sound Therapy for the treatment of Tinnitus, and is based on brand-new scientific research.

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Reviews and free software downloads for Windows, Mac, Palm, Pocket PC, and Mobile Phones. The best programs and games. Buy software directly online.

Thousands of people from around the world use SimplyNoise to block distractions, enhance privacy, aid sleep, mask Tinnitus, and melt away stress. The benefits of color noise have been utilized in clinics, schools, households, and offices.

RANDOM.ORG offers true random numbers to anyone on the Internet. The randomness comes from atmospheric noise, which for many purposes is better than the pseudo-random number algorithms typically used in computer programs.