Over the summer [ElectroSmash] put the finishing touches on the Arduino Audio Meter, a shield for the Arduino Uno that visualizes various aspects of an incoming audio signal on a set of four 8×8 LED ...
Many DAWs come with some sort of digital audio meters; but for a few of us, nothing beats a pair of good old-fashioned VU meters. They’re great for showing average levels, and some also have peak ...