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A couple years ago I made teensy based synth, but it kinda sucked... I had soldered wires directly to potentiometer legs meant for a breadboard and the connections kept breaking. I also had numerous issues with the code that caused all sorts of glitches. I became increasingly frustrated with the...

This is amazing. At first I thought it was weird that there was no obvious way to program a pattern, but I love the idea of making it "intelligent". I would probably get more use out of something this if I didn't spend time tweaking the pattern.

Thanks for the comments, I ordered a Teensy 4.1, so I should be good to go! I'll probably try out those mods to make it more efficient at a later stage.

After a week of debugging some odd behavior I'm just now realizing how CPU intensive the ladder filter emulation is! I'm using a Teensy 3.5, and I boiled my code down to a very simple 3-voice poly synth with output to the onboard DAC (very handy!), but every time I played a 3rd note the thing...

Some sustain pedals that support "half-pedaling", like the Roland DP-10, are actually continuous. Once I set one up to do upward pitch bends on an Ultranova synth and it worked surprisingly well! There was definitely a learning curve though, so it would take some practice to make it sound good...

Totally! I've thought about adding a jack to attach a foot pedal for this. I would need to practice using my foot for that. I've tried this before with a synth that could be programmed to do this, but it was much harder than I though.

Thanks! The hardest park was the 2 big hole sfor the Midi Jacks, I was a few millimeters off on the initial hole, so the don't line up very well. You can't really see that in the picture though. I still don't have a good strategy for figuring out where the holes should be drilled. The...

This might not be a very exciting project, but it's solved a couple problems for me. I wanted to control a synthesizer from my organ, but I wanted a physical control for pitch bend and modulation, which the organ doesn't have. Also, I can't plug the organ into the synthesizer because the MIDI...

Can you join the audio board with Teensy 3.5/3.6 like that? I thought the pins were mismatched.

I'm curious about this too... If I have to wire everything manually, that's fine, but it would be nice if there was a way to stack them.

Is some other posts Paul mentions that a 1-10 uf cap can remove the DC offset. The orientation needs to be with the + end connected to the DAC pin, so I guess they have to be electrolytic? Not sure about that. I had a few 2.2 uf electrolytic caps laying around, and they worked just fine.

I got a tonesweep sketch and a another synth sketch running last night using the onboard DAC with an inline capacitor. I was surprised how good it sounded at the lower frequencies. I was expecting a noticeable effect of the bit-depth. Maybe a side-by-side comparison with a 16-bit output would be...

The PT8211 looks good, but they seem hard to find. Whereas various texas instruments DAC ICs are easy to find, but I don't understand the differences. I guess the audio shield is the way to go to simplify the process. I'm still interested to hear other alternative DAC/codec options, just for...

First post! I recently bought a teensy 3.2 with the intention to build a modal synth. I'm pretty excited about it, but I'm unsure how to choose a suitable DAC/codec for the output. Most examples use the audio board, which is great and I might go that route. However, I only want a single...