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Mopho DJ Uses iPhone to Track Turntable Movement [Video]

Instead of using time-coded vinyl to interface your turntable with your computer as with Final Scratch Pro or Serato Scratch, Nicholas J. Bryan’s Mopho DJ uses an iPhone. Mopho DJ doesn’t require dedicated hardware or time-coded vinyl, explains Nick Brian, a researcher with the Center for Computer Research, Music and Acoustics at Stanford University.

How does it work?

“It’s based on an ordinary analog turntable which doubles as a physical interface to manipulate the playback of digital audio by placing an iPhone on a turntable. The handset is attached to a modified vinyl record in order to track turntable movement. The magic involves sensing a performer’s body movement via accelerometer and gyroscope sensors. This data is then applied to digitally scratch the recording in real-time. Other perks include real-time graphical display, multi-touch interaction and untethered performance. Oh yes, and they call it air-scratching.”

[Source: Stanford University, Via: Engadget]

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