Avid on Friday introduced Pro Tools 9 in what could be the biggest release in the software’s storied history.

[ad#Google Adsense 300×250 in story]The new version of Pro Tools does away with the multiple versions of the applications users could choose from. Until now, you could choose Pro Tools M-Powered, Pro Tools LE and Pro Tools HD.

With Pro Tools 9, it’s a single application that runs based on the connected hardware. For instance, if you have an HD hardware device, Pro Tools will launch a feature set compatible with that device.

One of the most requested features of Pro Tools over the years is that the software work with third-party hardware devices. Avid answered that call in Pro Tools 9.

Now, Pro Tools users can connect a variety of third-party audio interfaces to their computer and use Pro Tools as their DAW. In the past, Pro Tools required a Digidesign, and now Avid, made device.

Avid also gave users more of the advanced features in the standard package. Automatic Delay Compensation, an advanced production toolset, and the ability to have more audio tracks and busses are all part of Pro Tools 9.

Pro Tools 9 also includes OMF/AAF/MXF interchange and MP3 export, a built-in Time Code Ruler, an updated 7.1 surround panner, and New variable stereo pan depths.

Pro Tools 9 will be available worldwide on November 12, 2010 starting at $599. A variety of upgrade options are available for all users.