File:Purdue students' device creates "wah" effect without physical pedal

For their senior project in 2011, students from Purdue's School of Mechanical Engineering developed the Ghost Pedal, a wireless device that uses sensors attached to the guitar player's foot to create the distortion effect.

The Ghost Pedal team includes Garrett Baker, Will Black, Matthew Boyle, Brett Hartnagel, Christine Labelle, Adam Pflugshaupt, Nick Sannella and Robbie Hoye.

A full news release is located at http://otc-prf.org/news/purdue-students-device-creates-guitar-wah-effect-without-physical-pedal