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.

This page provides a wide variety of test tones, for testing your audio equipment.

Generate your audio test files online. Multiple waveform and frequency generators available. Audio output as high quality .wav file download. Online and free.

This page gives you access to high definition audio test files, with sample rates as high as 192 kHz. Unlike our other sections, these sounds won't play online: higher sample rates are not …

Test your audio equipment online. Check for frequency response, dynamic range, stereo imaging and more!

For this test, don't pay attention to this phenomenon, but rather to strong and localized frequency dips or peaks. When checking by ear, use the logarithmic version, as our ears are more or …

Test Files ... If your left speaker plays right, it's wrong! Swap your speakers - or better, your speaker connections - and you're done. As you are testing your speakers, check their relative …

On the top of the test tone, a voiceover tells you which frequency is currently playing. Play back the file until you start hearing the underlying sweeping tone as it rises.

Use these test tones to realize how 16-bit supersedes by far the dynamic range offered by your listening environment. At 20 bits, you are on the verge of dynamic range covering fly-farts-at …

In audio applications, pink noise is used as a reference tone to check frequency responses and becomes particularly useful when coupled with a 1/3 octave spectrum analyzer.