AVR ATmega Projects

REAL TIME SCROLLING SPECTROGRAM 1

REAL-TIME SCROLLING SPECTROGRAM

INTRODUCTION 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

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