This Twin Audio Visualizer is nothing other than amazing. It includes a Teensy microcontroller board that drives 2 displays simultaneously at a very high speed. Combined with a Teensy Audio Board, it is capable of doing a frequency analysis of the Audio in realtime to create a Stereo spectrum analyzer of 69 Channels.
Yep you understood me correctly! 69 channels in stereo…so that’s actually 138 frequency bins. On top of that, we will be displaying a stereo VU meter on the second display. So more or less we are really dealing with 140 channels.
This video is sponsored by @PCBWay They make great PCB board and offer good assembly service. Check out the website at https://www.pcbway.com/
With age, soldering is becoming harder and harder on the eyes. I good microscope for soldering is an absolute must have and I don’t have one yet. If you have an idea on a good one or you want me to try one, please contact me.
🕮 Manual: There is no manual for this version with two displays but the extra function is limited to the extra button that can be pressed to change the input channel Mic/Line-in. All other function remain untouched. Please refer the the manual of the original sketch by DIY-lab.
His github is here:
🕮 Software/ firmware / sketch / documentation:
👨💻 Building instructions:
🛒 Buy PCB / Parts:
Audio Board: https://opencircuit.nl/product/audio-adaptor-board-voor-teensy-4.0-rev-d
☕ Buy me coffee
If you like me work, please buy me a coffee to help me burning the midnight oil.
🔀 Links in this video you should check out
Andreas, @clever3d might build you a unit if you come to an agreement.
DIY-Lab who build the original version with one display: https://diylab.de/
How to add PSRAM to your Teensy: https://www.pjrc.com/store/teensy41.html
💁♂️ Do you want to sponsor my channel? Feel free to contact me anytime
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