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What are the computer requirements for MIX!?

Mac Computers: OS X Leopard (10.5.7 or higher), Snow Leopard (10.6) or OSX Lion (10.7). MIX! only supports Intel-based Mac computers.

Windows Computers: Windows XP Service Pack 3, Vista or Windows 7

MIX! requires 150 MB free hard drive space and 1 GB of RAM or higher(2 GB recommended).

An internet connection is required for registration.


What version of MIX! am I using?

The version number is displayed on the splash screen when you first start MIX!.

It is also posted in the about menu of the application. See the “Scratch DJ Academy MIX! > About Scratch DJ Academy MIX!” menu on Mac and the “Help > About Scratch DJ Academy MIX!” menu on Windows.


What’s new in MIX! 1.2?

Version 1.2 of MIX! includes 10 great new features, check out this pdf.


What file formats does MIX! support?

Scratch DJ Academy MIX! supports AIFF, WAV, MP3, AAC, and ALAC file formats. MIX! works with 16-bit mono or stereo files with a 44100khz sample-rate.


Why won’t my song files import?

Scratch DJ Academy MIX! limits the length of songs that it will import to a minimum of 20 seconds and a maximum of 20 minutes. A song must also contain at least 12 bars of music to be imported. Also make sure the format of the song is supported by MIX!: See “What file formats does MIX! support?”


The BPM of my song is detected incorrectly. What now?

MIX! is very accurate with BPM detection, but it is not perfect.  You can correct an inaccurate BPM by using the song information editor in MIX! (see “Song Information Window” chapter in the User’s Manual).  Scratch DJ Academy MIX! also only uses tempos between 60 BPM and 180 BPM. Tempos that fall outside of this range will be scaled up or down to a value that works best for beat matching.


“Check for Updates…” does not work on my Windows XP machine.

Scratch DJ Academy MIX! requires Service Pack 3 to work correctly on Windows XP machines.

I am not getting any sound playback.

Click here  to view troubleshooting tips on testing for “no sound” troubles using MIX!.


 If I change the sample rate of the audio device I’m using in another program while MIX! is running, the audio sounds very slow or very fast. Why is that?

This is a known issue and will be addressed in a future version of the software.


Why can’t I register my license key?

MIX! requires an active internet connection to register. If you are connected and continue to have trouble registering, please email us with your key and we will test it out.