ACID Pro 6 from Sony Media Software is a loop-based music creation tool that allows for the production of original, royalty-free music. Songs can be created, tracks re-mixed, music beds developed, videos scored, and music for Web sites and Flash animations developed. The software features top quality automatic loop time-stretching and tempo-matching technology and is intuitive and easy to use with its straightforward pick, paint, and play functionality.

Source material can be pre-recorded loops in multiple genres, recorded hits or segments, complete songs, even MP3s. Multi-track recording and full MIDI sequencing have been added to ACID Pro 6. With unlimited tracks of audio and a simple interface, files are previewed, selected and dropped into place. Automatic real-time pitch-shifting, time-stretching, and groove quantization of audio and MIDI events takes the stress out of assembling perfectly synched music.

The software also supports video import. With the use of prerecorded audio, a soundtrack can easily be assembled. Even if the individual elements do not fit the hit points of the movie, with the use of markers and a few key strokes, the music can be slowed down or accelerated to hit as many points as required. Of course the user can control the volume, pan and effects on each track, and also produce drum fills, stutters, and DJ-style effects with Chopper, an included utility.

ACID Pro 6 software includes a custom edition of Native Instruments KOMPAKT. This full-featured VSTi sample playback engine comes bundled with over 120 instruments with the ability to download exclusive content.

Music creation using an efficient pick, paint, and play style interface

Unlimited tracks of audio (hardware dependent)

Dual/Multi-core processor support

Records music or vocals directly into a project. Supports multi-track audio recording

Support for control surfaces including Mackie Control and Frontier Design TranzPort

Includes over 1,000 loops and the included Media Manager provides powerful new ways to tag, organize and search the user's collection of loops, allowing them to quickly find just the right media for any ACID compositions

Includes a custom edition of Native Instruments KOMPAKT sampler, bundled with over 120 instruments

The pitch or tempo of an entire project can be changed in real-time

Customizable workspace with mapping and the ability to save commonly used keyboard commands. Multiple windows can be docked together to create different layout configurations for certain editing tasks

Restores projects to any previous state using unlimited undo / redo history

Markers can be dropped in real-time

Effects can be inserted in any order or in any combination. Supports DirectX plug-ins along with VST plug-ins and instruments with tempo sync

CDs tracks can be lifted directly into ACID and audio projects written directly to CD with track-at-once CD burning

Records MIDI files directly into the timeline

Time stretch MIDI tracks

Generates MIDI Time Code and synchronizes with external devices

5.1 surround film-style panning

Encodes video, inserts metadata command markers, launches web sites, displays captions, and embeds URL flips into audio and video streams

Saves to a number of audio file formats, including WAV, WMA, RM, and MP3. Includes Flash (.swf ) file format import