Quote:
Originally Posted by Cloud
Peter Frampton's guitar talking
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It's fascinating how that actually works. The guitar plugs into a little black box, with a 50 watt amp and a small speaker, sealed inside. The box has a plastic tube which the output from the speaker is forced out of. The operator tapes the tube to their microphone, and inserts it into their mouth. Now, the guitar is being amplified to the inside of their mouth. As the operator changes the shape of their mouth, the output from the guitar is influenced by the cavity it is being broadcast into. The resulting sound is captured by the vocal mic, and is heard through the main PA system.