The secret weapon of players as eclectic as Steve Vai, Tom Morello, Matt Bellamy, and Jonny Greenwood, the DigiTech Whammy unlocked new registers and glitchy sounds. The Whammy was introduced in 1989, ...

The promise of a pitch shifter is pretty simple. It takes your signal, and changes its pitch. As it turns out, this was quite complex to do, especially before modern digital signal processing. There ...