![]() ![]() To help manage all of the data and keep the speed as fast as possible it uses external RAM soldered to the board, and a second Teensy audio board is used to do the real time FFT analysis. What’s more impressive is that it’s being done all on a Teensy 4.1. ![]() Not only does this build include two displays, but the microcontroller is keeping up with 170 channels in real-time in order to drive the display. shows us exactly how to reclaim some of the old-school functionality with this twin audio visualizer display. Things like VU meters don’t tend to be common anymore, but it is possible to build them back in to your sound system with the help of some microcontrollers. While high-fidelity audio has come a long way in the past several decades, a lot of modern stereo equipment is still missing out on some of the old analog meters that were common on amplifiers and receivers of the 60s through the 80s. Video after the break.Ĭontinue reading “Build A Circuit Sculpture-Style VU Meter For Music” → Posted in LED Hacks, Musical Hacks Tagged led, level meter, visualization, VU meter We can imagine it would look even better if it was cast in clear resin. The result is an attractive rainbow VU meter display that would look great as a part of any old-school stereo setup. It’s intended to be directly connected to a speaker’s audio input, and thus likely does load down the amplifier output slightly. A series of diodes is placed in series, with the sound level having to exceed the voltage drop of successive diodes to light the higher LEDs. It uses simple colored LEDs, assembled in a line with red at the bottom, stepping through yellow and green, to blue and white at the top. It’s a barebones design that’s assembled using a jig to create the attractive circuit sculpture structure. The build relies on a very simple circuit that relies entirely on analog electronics in lieu of the usual digital signal analysis usually employed for the job. Now, you can build a rainbow set with great response, thanks to this guide from. Thumping level meters that pump with the volume are a great example, and were particularly popular in the 1980s. One of the coolest things any sound system can have is some kind of musical visualization. ![]()
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