Audio Guides

How audio formats work, and how to convert, cut, record and fix sound.

Brown Noise vs White Noise vs Pink Noise: What's the Difference?

What brown, pink and white noise actually are, how they sound different, which one people use for sleep, focus and tinnitus, and safe listening levels.

How to Make a Ringtone for iPhone (and Set Any Song as Your Ringtone)

Turn a song or voice clip into an iPhone ringtone: the 30-second M4R format, GarageBand on the iPhone, Finder or iTunes on a computer, and setting it in Settings.