U-CONTROL UCA222 allows you to connect instruments and other audio devices to your computer, effectively merging the analog and digital worlds. It accomplishes this by providing two analog mono inputs and outputs (for monitoring), USB connectivity, and an additional S/PDIF optical output. Audacity is an easy-to-use audio editor and recorder for Windows, Mac OS X, and Linux operating systems. You can even connect the RCA Output to the Tape Input jacks of your mixer. Tracktion is one of the world's fastest and easiest Digital Audio Workstations (DAW) for composing, recording, editing, mixing, and sharing your music. Featuring a single-screen interface, and pushing the envelope in design elegance, Tracktion brings together outstanding Pro DAW features, such as dynamic automation, unlimited track count, MIDI recording, and support for VST and AU plug-ins.