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I'm using the cycfi q library to do monophonic pitch detection for my synth pedal: https://forum.pedalpcb.com/threads/terrarium-synth-pedal-code-demo.22631/

You should be fine with the 1MB version. Here's the reported memory usage for my code (see How to determine your memory (RAM) needs): Memory region Used Size Region Size %age Used FLASH: 75576 B 128 KB 57.66% DTCMRAM: 0 B 128 KB...

So... there's a companion webpage for the paper, which features a few recordings and the results of feeding them through various products/algorithms. Now I've put the originals through my pedal as well for comparison - links below. All my files have been normalized but are otherwise unedited...

An impulse test shows a delay of about 4 ms, which is very close to what was reported in the paper for ERB-PS2. My measurements of the Sub 'N' Up were similar: about 4 ms. I don't have one to compare against, but the paper reported delays of 15-20 ms for the POG. But there were significant...

All the code outside of the lib directory is my own*. I'd say I followed the spirit of the paper, but I didn't end up slavishly copying every detail it specifies. I'm not aware of an existing implementation published anywhere. More information than you bargained for inbound... ERB-PS2...

I got another one for y'all. This time we're doing polyphonic octaves, like a POG or a Sub 'N' Up. Project page: https://github.com/schult/terrarium-poly-octave Firmware binary: https://github.com/schult/terrarium-poly-octave/releases/download/v1.0.0/TerrariumPolyOctave.bin Not the best...

I went ahead and adjusted the trigger range. It covers anything I'm likely to care about for my setup, but it's still a shot in the dark for guitar. Here's a temporary build if anyone wants to test it (this file will self-destruct in 7 days)...

Awesome. From there, turning the Trigger setting a bit higher may help. You could also try turning on Envelope (switch 2). If you want to record some video, the top thing I'd like to see is how the Trigger works at different settings. Run it with Envelope turned off to start with, and a little...

Just to make sure I know what I'm working with, here's what I suggest for initial control configuration. Turn all knobs to zero and all switches down. Move Filter (knob 5) to noon. Then increase Synth Level (knob 2) until synth starts coming through (It should be pretty wild at this point)...

Thanks! Not exactly the result I was hoping for, but I really appreciate the help. I'll think on what might be wrong and see about getting some changes into a test build tomorrow night.

Here's a basic take on a tap-tempo class. Some assembly required. Do with this what you will. https://gist.github.com/schult/284771b1296bc69a93a72b0c501065f5

I've been working on a monophonic pitch-tracking synth pedal firmware for the Terrarium. The thing is, I play concertina, not guitar. So I'm really interested in hearing from any guitarists that are willing to try this thing out. How's the tracking? Are the knob ranges good (especially the...

I just built a Terrarium, and was surprised that I didn't find some kind of test firmware to validate that it was working correctly. It seems that others would also benefit from something along those lines. So, here's my take on it: https://github.com/schult/terrarium-test/releases/tag/v1.0.0...