An effect occurring when a sound with strong formant characteristics is shifted severely in pitch using a pitch shifter, resulting in a noticeably peculiar timbre. The name comes from the canonical example of shifting the human voice upwards, resulting in an effect often compared to the Munchkin voices from the movie The Wizard of Oz. This is also called the "Chipmunk effect," named after Alvin and the Chipmunks recordings of the 1960s (which were produced using an effect called double speed recording).
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