Mixxx is a digital DJ system, where ogg, wave and MP3 files can be mixed on a computer for use in live performances. Filters, crossfader, and speed control are provided.Mixxx Gear is designed to help professionals and semi-professionals. Mixxx was started in early 2001 as one of the first digital DJ systems. Today Mixxx includes many features common to digital DJ solutions, but also unique characteristics: it is free and works on all major desktop systems operating. Furthermore Mixxx has a number of key functions to assist the DJ in the live mix: Beat estimation, parallel visual displays, and support for many DJ input controllers.At when we work on Mixxx 2.0 bringing major new features including a summary of waveform displays, new sound effects, and support up to time-stretch independent. What's new in this version: [read full changelog] · This news is a bugfix update recommended for all 1.7.0 users and fixes a number of issues.