Lego Spectrum Analyzer preview
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Nixie Spectrum Analyzer
This Nixie based looking clock is absolutely amazing. What you see are not real Nixie tubes but tubes of my own creation. It uses pixelleds that where fitted into a glass laboratory tube. The electronics is using a pure analog design to isolate all the different frequency bands. No need for hard to find IC’s and no FFT. The ESP32 is used to process the analog data into visible bars. ( Pixelleds)
This video is sponsored by @PCBWay They make great PCB board and offer good assembly service.…
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Sneak preview next project: nixie tube alike spectrum analyzer
Sponsored by @PCBWay
This is my upcoming project 10 channel analog analyzer with nixie Tubes ( Or honestly not nixie but DIY look a likes )
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Cathode ray tube first successful experiment diy
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Amazing Twin Audio Visualizer to the rescue
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.…
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Up next open source twin audio visualizer 69 channels in stereo!
Got my pcb proto ready. This is a Audio Visualizer that will be available as open source. It has two display. The first display will show a stereo VU meter, the old fashion way: imitating a needle.. while the other display has several features one of those is a stereo 69 channel spectrum analyzer…and it’s really fast! so that’s 140 channels in total! ( L+R VU, L69 +R69)
The pcb will include hardware to implement line in, line out, mic in…input for potmeters and switches and two outputs for pixelled matrix or ledstrips………..So…
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100 Spectrum analyzers anniversary video you must see
The last two years, I have been designing and building Audio Spectrum Analyzers and I sold more than 100 PCB’s. This means that more than 100 units where build successfully. I asked people to send in a video of their analyzer while playing a specific song. This video shows a compilation of some magnificent builds. It contains several versions from my oldest, the 14 channel MSGEQ7 analyzer to my newest, the 10 channel analog analyzer and everything in between.…
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Calibration of Spectrum Analyzers
White Noise
This is the most common and well-known form of noise. White noise is comprised of an equal amount of every frequency, all played at once. It happens in real life when your TV or radio makes static noise. However, because of our ears’ frequency response, we perceive higher frequencies as louder, so it doesn’t sound particularly balanced to most people.
Pink Noise
Pink noise is essentially bass-boosted white noise, where the amplitude decreases as the frequencies get higher.…
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Talking Tetris Clock You Must See
This Talking Clock is based on @Brian Lough Tetris Clock. I added a wav/mp3 player enabling you to play sounds at set times. I also added a webserver to change settings, two text tickers to send you message out to the people in the room and I included a function to use this clock even without access to a WIFI network. All in all, I added some extra features to a already nice design.
This video is sponsored by @PCBWay They make great PCB board and offer good assembly service.…
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What I’m working on next! Coming Soon!
This is a VU meter/ spectrum analyzer that can replace some of the old analog needle’s….this is for the real audio lovers!!
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