@Gibbedy_G and another…
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Very nice. how many updates/second are you doing to acheive that look. What serial speed?. Iios wasn’t palying the audio on your first video. I see it works on my pc though.
@Mark_Estes So are you saying that a trinket with the aduioprocessing on it outweights the msgeq7 because the FFT off of it is better? Sorry I am kind of knew to this but is the FFT a more accurate description of the audio to digital? I’d love to look into that audio processing thing!
@marmil are you using a 3.5mm or a mic?
@Tommy_Sciano The test I did with the MSGEQ7 used direct audio input via 3.5mm jack. Seemed nicely responsive, but I was also only lighting up about 40 pixels so not much time needed on the LED display side of things. The audio range I was specifically interested in was basically covered by three of the MSGEQ7’s seven bands. It would have been nice to have had more granularity for display purposes, but it has fixed ranges. Using a Teensy with an audio board would allow for more focused audio analysis if needed.
Based on a project’s design, if it’s possible, I would recommend direct audio input over a mic as you’ll likely have a better signal and more control of that signal.
@Gibbedy_G Frames per second is in the mid 60s at full speed. I slow some of them intentionally. The Serial link between boards is running at 57600 . I pushed it to 115600 and if did not speed things up and became less reliable. I think the gating factor is pushing 4096 pixles through the 8 // ports.
@Tommy_Sciano I cannot say one way or another which way to go. I do not know much about how the msgeq7 works. I was a bit new to this back when I tried the msgeq7. From what I recall, it uses a series of bandpass filters and peak detectors. The result is a 7 band output.
My current approach had a bit of a learning curve program-wise but less tricky wiring vs the msgeq7. FFT is a time proven way to do analysis of a waveform. Works well in this case. One positive is that I am not stuck with only 7 bands. I could have as many as 512 bins (which I currently combine to get 17 bands) Note: these 512 could combine to get any number of bands of output.
@Tommy_Sciano 3.5 stereo input. In software, I mix the left and right together then do the FFT on the resulting 50% left, 50% right mono.
WOW!!! Particularly the two videos you posted in the comments. The response to metal music is stunning!