- Digital audio workstations like Pro Tools function as a software mixer and audio processor. Once audio input has been converted to digital code by the computer's sound card, Pro Tools receives the audio and can handle it in many ways. While most commonly used to record digital audio, and then to mix and edit the recordings, Pro Tools is also capable of sending audio streams to various other software for editing, effects or composition. After a piece of software has processed an audio stream, it can be returned to Pro Tools for recording or redirection.
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An image of audio waveformOne of the most-used features of Pro Tools is a software mixer console capable of routing, editing and mixing down both recorded and live audio. A powerful hard-disk recording element allows nearly unlimited individual tracks of audio to be recorded with non-destructive editing, or the ability to undo unlimited levels of recording or editing without losing original audio data. Pro tools also incorporates a plug-ins section that functions much like a virtual effects rack. Various software audio processors can be opened inside the Pro Tools program and used to alter audio. The main program also includes advanced editing features, including waveform drawing capabilities. - Pro Tools software is bundled differently for different uses. The main program, simply known as Pro Tools, is designed for audio professionals and advanced editing studios and includes the most features of any Pro Tools release. Its counterpart is Pro Tools HD, which boasts improved performance for sound studios and audio producers. Pro Tools LE is a personal-use program for home studios and independent musicians. While it includes many advanced features found in the professional bundles, the LE program limits available recording tracks. Pro Tools M-Powered normally comes with hardware products released by M-Audio and includes features and limitations similar to Pro Tools LE.
- Pro Tools is designed to work with most major sound cards and computer systems, including Microsoft Windows and Macintosh operating systems. The software also supports hardware mixers and workstations designed to control software mechanisms. M-Audio offers mixers made specifically to control the Pro Tools software mixer, though other manufacturers' similar products can often be made compatible with Pro Tools.
- Pro Tools boasts an impressive array of fully professional digital audio handling capabilities and is in use by top studios all around the world, but it is not the only program used for professional audio production. Steinberg's Cubase includes many features similar to Pro Tools and is preferred by some, especially small studios and musicians, for its ease of use and clean appearance. Cakewalk's Sonar has a similar appeal, but looks and feels more like Pro Tools. Sonar includes advanced MIDI handling and composition tools, but lacks some advanced editing features.
