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.

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. Use MIDI step recording to add events to your project without having to use an external MIDI controller. MIDI tracks time stretch perfectly to any tempo, and can be rendered with effects just like audio tracks!

ACID PRO includes a content CD containing more than 400 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.

If you liked ACID PRO 3.0, you won't want to miss this incredible upgrade. If you've never tried ACID before, there's no other product like it. ACID PRO 4.0 now includes these new features:

Mixing

• Plug-in effects automation
• 5.1 surround mixing
• Alternate time signatures
• ASIO driver support
• Loop Cloning
• Master, auxiliary, and effects bus tracks
• Enhanced time stretching for Beatmapped tracks
• New audio panning options
• New envelope fade types

• MIDI piano roll editing
• MIDI step recording
• MIDI event list editing
• VSTi support
• Yamaha OPT (Open Plug-In Technology) support
• Optimized DLS and VSTi soft synth model

• Multiple media file previewing
• Hotkey commands for track muting & soloing
• Optimized ACID playback engine
• Autosave crash recovery
• Customizable track properties

• Windows Media™ Audio and Video Import
• Enhanced video handling

Windows 98SE, Me, 2000, or XP, 300 MHz processor, 64 MB RAM (128 MB recommended), Windows-compatible sound card

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