Peak is a digital audio editing application for the Macintosh, used primarily for stereo/mono recording, sample editing, creating loops, and CD mastering. It is commonly used by amateur and professional audio and video editors, mastering engineers, musicians, sound designers, artists, educators, and hobbyists. It was published by the now defunct company BIAS Inc. in several editions, with varying levels of features. BIAS Inc. ceased all business operations as of June, 2012.