A wah-wah pedal, or simply wah pedal, is a type of effects pedal designed for electric guitar that alters the timbre of the input signal to create a distinctive sound, mimicking the human voice saying
Thomas Organ Cry Baby (1970) manufactured by JEN
A 1968 King Vox Wah pedal similar to one that was owned by Jimi Hendrix
David Gilmour's VOX Wah Wah guitar effects pedal, as used on Obscured by Clouds (1972), displayed at the Pink Floyd: Their Mortal Remains exhibition
A talk box is an effects unit that allows musicians to modify the sound of a musical instrument by shaping the frequency content of the sound and to apply speech sounds onto the sounds of the instrume
Wah-wah pedal
…The Dub Room Special. David Sanborn can be heard playing an alto saxophone modified by a wah-wah pedal on the David Bowie album Young Americans (1975). Talk box EQ…
Peter Frampton's talk box
Weezer guitarist Brian Bell with a talk box, the tube being attached to the microphone (2022)