Prosoniq TimeFactory 2 allows changing speed and pitch of your sound files independently of each other. It takes time stretching and pitch shifting to the next level by giving you unique and unparalleled control over all aspects of your sound files. TimeFactory 2 is the only application that combines all leading time stretching algorithms that are used in the major audio editing applications at this time, giving you access to the latest in technology from one single user interface. No need to buy dozens of programs - you get them all in just one application.
This review was originally posted on VersionTracker.com.<br />I bought Timefactory 1 in the 1990s and was using it almost every day since (I am processing a lot of voiceovers for audio cds and produce radio and tv commercials for a living). I can't say how happy I am to have an Intel version of it now. Though the software is relatively expensive I am really happy with the results and its versatility. It's the only software I know (and I have tried them all) that doesn't create phasey artifacts when time stretching and the only one which lets me choose between different algorithms. It's a very handy tool for changing the key of a song too (if you're into Karaoke you will love this). Anyway, I can really recommend it and would encourage everybody to try the demo. If you have the money and are looking for a professional tool - here it is.