ACID® PRO 4.0 is the latest version of Sonic Foundry's award-winning loop-based music creation tool that allows professionals to produce original, royalty-free music.

Use ACID to create songs, remix tracks, produce 5.1 surround audio mixes, develop music beds, score videos and create music for web sites and Flash™ animations. While this revolutionary tool is intuitive and easy to use, its powerful enough for professional production. Work with a huge assortment of loops in multiple genres. ACID lets users compose using unlimited tracks of audio and MIDI, import and Beatmap complete songs. ACID PRO saves to a variety of formats such as WAV, WMA, RM, AVI, and MP3.

Why ACID PRO?

Powerful features — Use as many loops and MIDI tracks as you like with unlimited tracks. Apply VSTi soft synths, create amazing 5.1 surround mixes, and perform video scoring.

Amazing audio effects — Create resonant sweeps, dramatic fades, EQ changes, and effects by utilizing new automation parameters and envelope control. ACID 4.0 includes new Sonic Foundry automated effects such as Resonant Filters, Track EQ, and Flange/Wah Wah/Phase. ACID PRO also includes over 20 DirectX® audio Plug-Ins such as Amplitude Modulation, Chorus, Delay, Distortion, Flange, Noise Gate, Reverb and more.

Enhanced MIDI functionality — ACID 4.0 allows you to display and edit MIDI files in a piano roll format, just like a sequencer. The new MIDI piano roll editor allows you to draw new notes, and makes it easier to graphically edit MIDI parameters. Record MIDI tracks into your ACID project using external MIDI devices, or add events using MIDI step recording. MIDI tracks time stretch perfectly to any tempo, and can be rendered with effects just like audio tracks!

Includes hundreds of music loops — ACID PRO includes a content CD containing more than 350 multi-genre music loops and dozens of projects from Sonic Foundry's Loops for ACID® collection. Genres include: Dance, Hip-Hop, Techno, Industrial, Pop, Rock, Jazz, Ambient, Orchestral and more. Plus, get 5.1 surround projects and alternate time signature loops.