MSP430 audio sampling
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Raw microphone output
We need to zero the signal and amplify it, this is done with an operational amplifier (or op-amp). This is a chip that amplifies the tiny, oddly centered audio signal into a full range signal based on 0 volts. The diagram is clearer than I could ever explain with words.
Ian Lesnet
May 9th 2008 5:07AM
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