Mixed in Key has introduced Mashup, a new app that’s designed to ease the process of making audio mashups.

Here’s what they have to say about it:

Mashup’s user interface is streamlined and intuitive. Import songs into Mashup, and it will analyze them for key and tempo. Next, drag a song into Mashup’s ultra-fast audio editor, and its tempo will become the master for the project. If you’d prefer, you can manually enter in a different master tempo. As soon as one song is added, the song browser will show you which other songs in your collection are 100% harmonically compatible with your original song. Then drag other songs into the editor window, and they’re automatically beat-matched to the master tempo, using Mashup’s professional time-stretching algorithm.

Now you can start editing. Mashup lets you graphically edit each song’s volume, as well as three bands of EQ, all with breakpoint-style automation. The editor also lets you select and silence portions of songs, adjust phase, slide them in time, and more. When you’re done editing, you can export the result to a 320kbps MP3 file or a 16-bit, 44.1kHz WAV file. If you already use Mixed In Key 5, Mashup will load its database and will skip the analysis step. Mashup and Mixed In Key 5 work flawlessly with each other.

Mashup is available now, for Mac & Windows, for US $39.