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!
source https://blog.tindie.com/2020/12/10-band-tabletop-spectrum-analyser/
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