I started playing with the Tannhäuser pd integration (currently in alpha) and here's a first patch.
It's a simple mono delay patch, but using the second audio channel (the "R" channel) as send/return bus for audio that is then fed back into the delay buffer.
Get the firmware binary at: ext-fx-delay-01.bin
And the pd patch if you're curious: ext-fx-delay-01.pd (the schematic is shown below)
Upload the firmware binary with OwlNest, then make sure to select the "Tann" effect for both red/green slots, otherwise it won't load. Don't try to upload the pd file, it will brick your pedal.
- Effect send
- Delay time (up to 900ms)
- Effect return (really a crossfade between clean and wet signal)
You can use this to create delay effects with all kinds of peculiar character, for example by patching in a distortion pedal; or even to chain two delay pedals which you can then control with a single "send" knob.
It's a simple example of using the Owl for "modular" effects that aren't self-contained, but instead act as one component together with other effect pedals. I was really excited that the Owl is a stereo pedal because it allows for such modular effects. (This also means this patch won't work without a second effect pedal; but of course you could simply patch the "R" output directly into the "R" input and get a clean/boring delay.)