flickr by sduck409 (click for more)
"Here's my build of the Dual Digital Oscillator, blacked out version. PCB is from Lazerkind/PT-Audio."
And some details from Muff's:
"It is based on DSS (Direct digital synthesis) and is running on a ATMega 328p chip.
Both oscillators share a set of 4 * 8 Wavetables that can be interpolated.
It has 8 modes of operation:
- 1. Phase mod 1->2, 2->1
- 2. Saw mod
- 3. SampleWrap
- 4. BitCrush
- 5. PhaseCrush
- 6. Bitkill
- 7. And/Or
- 8. Sync 1->2
(still not 100% set in stone as so many variations sound cool)
pitch tracking is 5 octaves, 1V/oct. And can be offset +5 octaves with the coarse/fine controls. Additionally the pitch can be modified by the pitch mod inputs +/- 5 octaves.
Osc1 can be switched down one octave, and osc2 switched down 8 osctaves.
Osc2 can either follow osc1 or run free, by flipping the link switch.
All CV inputs are 0-5V but the pitch mod that is -5/+5. All inputs are protected against voltages outside that range, but inputting a non expected voltage may result in unexpected behaviour"
And some audio demos:
I believe this is the first PT Audio post.
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