Ball Jam is a volumetric audio composition created by Zack Settel, combining motion tracking, realtime audio processing, and physical modelling in a virtual environment.

Commissioned and performed by the Quasar Saxophone Quartet (quasar4.com), the piece allows players to capture samples from their instruments and apply effects based on their location on stage.

This video shows one of the premiere performances, at the Montréal New Music Festival. Feb 20, 2011.