UltraMixer Professional is an application for Mac in which you will be able to make any kinds of remixes and modify a vast amount of sound properties during the song playback.
The mixing tables have been replaced by two path players that come with playlists, equalizer controls with 31 bands and special effects, like resonance, delay or cut.
UltraMixer Professional allows you modify characteristics of songs like the time scale or tone, create loops or get the number of beats per minute. Also in comes with a series of samples which can come to great use to liven up a DJ session.
The following formats are the ones which UltraMixer Professional can work with: MP3, WMA, AAC, OGG, WAV and audio CDs.