Spectrum analysers are a neat way to display music and audio in the visual realm. The Spectrum Analyser Kit is a little table top incarnation, with 10 bands of LEDs covering frequency ranges from 31 Hz to 16 kHz. It comes in kit form with all the parts, PCBs, and 10 x 10 LED matrix to illuminate your bedroom or studio with rectangular dancing dots!
The Spectrum Analyser Kit comes ready to be soldered with extensive instructions available online and a pre-programmed microcontroller. Once made it’ll display the full frequency range from bass to treble – across frequency ranges at 31 Hz, 62 Hz, 125 Hz, 250 Hz, 500 Hz, 1 kHz, 2 kHz, 4 kHz, 8 kHz, 16 kHz. It has 4 visual modes to display combinations of dots, lines and peak holding. It’ll run off a 12V DC power supply (not included) and will take a single mono 3.5 mm jack for the audio input.
It certainly falls into the hobbyist category rather than being something a professional mastering engineer might rely on, but given the added fun and achievement of soldering it yourself, it’s a neat little box which will reward you with a little funky light show.
The spectrum analyser is the first release from Home Hobby Electronics who are based in Latvia. Here’s to more from them in the new year!