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Project Help and Ideas » NerdKit Vocoder?

January 06, 2013
by Hexorg
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Hey everyone! So I was reading around some theory behind vocoders (they make those funky robot voices from the microphone input), and I want to build one using the nerdkit. But before I start I want to make sure I understand the theory behind all this. In an article I found, they describe how a vocoder works. Since I'm using a microcontroller, most of the components will be in the code. They keep talking about splitting the signal into the bands. Is that essentially fourier transform? So do I understand it rigt? I just need to pass microphone and carrier (eg. guitar) through the fourier transform, and then just multiply the two arrays together?

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