Arduino realtime audio spectrum analyzer
Paul Bishop has posted source code and the schematic for an audio spectrum analyzer based on the Atmega328/Arduino. The design takes input from a simple electret microphone, amplifies it through a transistor fed into the Arduino’s ADC input pin. The Arduino outputs video of a 64 band audio spectrum analyzer through two external resistors which feed the video out to any display device handling NTSC video.
The amazing processing feats which can be achieved with this device never cease to amaze us.This entry was posted in Arduino, tools and tagged Arduino, realtime, spectrum analyzer.