YouTube Uploaded by KM65536 on Jul 13, 2007

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"One of the coolest instruments out there. The vocoder shapes its envelope and filters by any sound source fed into it, your voice or even a drum loop can be used which is then applied to another sound source, typically a synth pad. This creates a very unique and famous robot-like sound. (think of the vocal sound on daft punk's "robot rock" or kraftwerk's "autobahn" etc...) as you can see there's a built in microphone input on the back so you can plug a microphone directly into this thing and be ready to go. no mic pre-amp needed.
Aside from the 10-band vocoder, the VP-330 added a string synth section, choir and a human-voice sound, both of which are quite excellent themselves. Its 3 sound sections offer a few different presets that can be slightly edited with de-tuning and vibrato. The VP-330 is one of the best Vocoder synths ever and although there are many other types of Vocoders, none sound as good as this!
this video has a pretty good example of what the VP-330 vocoder sounds ( at around 0:50)"