The DigiTech Whammy uses digital processing to raise or lower the pitch of an audio signal by up to two octaves.

[3] Later models added more accurate polyphony, drop-tuning modes, a MIDI input for external control, and a "dive bomb" setting that emulates the sound of a whammy bar dropping the pitch.

For the introduction of the 1994 song "My Iron Lung", Greenwood uses it to pitch-shift his guitar by an octave, exploiting the inaccurate pitch tracking for chords to create a "glitchy, lo-fi" sound.

For the 2007 song "Map of the Problematique", he programmed the Whammy to shift his power chords rhythmically, creating octave patterns.

[11] The Pink Floyd guitarist David Gilmour used the Whammy to achieve "wild, octave-wide bends" on the track "Marooned" on the 1994 album The Division Bell.

[13] The Whammy is used by math rock acts such as Three Trapped Tigers and Adebisi Shank to create "video game"-like tones.