The new professional recording features in ACID Pro 6 software make efficient work of even the most complex audio productions. Simultaneously record multiple tracks of audio and MIDI, punch in and out on the fly, and audition effects with your signal before recording. ACID Pro 6 software increases playback performance on multiprocessor or multicore computers by creating a separate thread for each processor.

Simultaneously record multiple tracks of audio and MIDI into the ACID Pro 6 timeline through a variety of methods, including step recording, punch-in/out, continuous looping, and more. Arm multiple audio tracks, record alternate takes as clips, and select the one that sounds best to use in your composition.

Set up and mix 5.1 channel surround project files for audio and DVD productions. Use the surround panner for precise control over channel positions so you can optimize your projects for theater-style speaker placement and playback. Automate your 5.1 mix on the timeline using keyframes.

Film-style surround panning allows you to pan between pairs of adjacent speakers using a constant power model, and is optimized for theater-style speaker placement.

Compose an original soundtrack for your video right inside the ACID software workspace. Just import your clip, set your markers, and watch your soundtrack's tempo lock to the visual cues of your choice. Drop one-shot sounds on your hit points, work independently with your video file's associated audio media, and render the finished project out in a wide variety of formats.

Create project sections so you can rearrange time-based segments of audio and MIDI events in your ACID Pro 6 projects. Drag and drop to move or copy project sections and audition new arrangements without having to redo your entire project.

Perform hands-on mixing using external hardware with ACID Pro 6 software. Version 6 natively supports the Mackie Control Universal and the Frontier Design TranzPort, and allows custom mapping of up to five user-defined control surfaces. Send and receive commands to compatible outboard devices (to control record, transport, envelopes, faders, mutes, solos, pans, and effects automation.)

The new multitrack workflow provides users with the ability to monitor audio signals with real-time track effect DSP during recording sessions.

ACID Pro 6 software includes meters on each track to accurately monitor levels during recording.

Place multiple media types on a single track to create dynamic musical compositions. Add one-shots, Beatmapped clips, loops, and disk-based files on the same track. Use the Clip Pool to organize and choose the events you want to use in your composition—your mixing options are endless.

Record track envelope and keyframe parameters in real time using a mouse or external control surfaces with touch and latch record modes and automatic post-record keyframe thinning. Automation parameter control is available for both stereo and 5.1 tracks and buses.

Easily paint one-shots or MIDI notes on the ACID Pro timeline in specific lengths such as quarter note, eighth note, and triplets. Add audio and MIDI events to your projects with increased note accuracy.

Track Folders provide a more efficient way to view your project. Increase your efficiency by organizing several tracks into one track folder on the ACID Pro 6 timeline. Use cluster editing to drag, pitch-shift, cut, copy, and paste entire sections of loops.

Instantly reverse loops, one-shots, and songs in real-time—no need to export your file to another editing application.

New bus-to-bus routing allows the creation of complex sub-mixes.

ACID Pro 6 software provides real-time downmix previewing of audio from 5.1 surround to stereo, or from stereo to mono, to ensure that your mix will sound as intended no matter what the destination playback device.

Use the Beatmapper tool to add tempo information to song-length files, including MP3s, to remix and combine music loops and create original mixes. Add beats, overlay samples, and give your songs an exciting new edge.

The Chopper editing tool creates amazing drum fills, stutters, and DJ-style effects. You can also use the Chopper to "clone" loops, create chopped events, tweak separate parts of your loops, and even mix slices of multiple loops to create your own customized samples. All chopped events will play in sync with your ACID Pro 6 projects. You can also use keyboard commands to drop events from the Chopper onto the timeline in real time.

Insert loops and one-shots as you project plays back. You can also create your own loops in the Chopper and add them to the timeline in real time during playback via keyboard commands for live mixing.