jetlib.sec » Hack a Day » Making an audio spectrum analyzer with a microcontroller

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Hack a Day

• May 29, 2012
• 

  Making an audio spectrum analyzer with a microcontroller

  Posted: May 29th, 2012, 10:01am PDT by Brian Benchoff

  Tags:  analyzer spectrum microcontroller vinod audio-spectrum-analyzer audio-waveform sine-waves microcontrollers  

  While [Vinod] says he’s not an expert in this sort of thing, we really like his audio spectrum analyzer build from a simple microcontroller and LCD display. It is a well-studied fact that every audio waveform – a recording of your voice, for instance – is just the sum of many, many sine waves. These sine [...]