Realtime sound spectrogram

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This project implements a real-time scrolling spectrogram-style visualization of an audio signal. We successfully displayed the frequency spectrum content in real time using a 4-bit grayscale scrolling display on any NTSC television. The frequency spectrum of an audio line-in input or mic input is calculated and displayed in real time using two ATmega1284 microcontrollers units (MCUs). Features include play/pause functionality, slowing down scrolling speed by factor of 2,3 and 4, as well as displaying in linear or log scale.
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Could you do this with one Propeller?  And I'd imagine that you'd be able to do higher resolution with one.

douro
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not bad, i think it would have been easier if you would have sent the signal to a scaler and then directly to the vertical coils of the deflector in the tv. You would be bale to get a scan of up-to 20khz, but still awesome :)

ivanrodionov