From Michael E Caloroso Sent Fri, Jul 20th 2018, 13:43
We got video: https://www.facebook.com/michael.caloroso/posts/1056229534539466?comment_id=1056412544521165¬if_id=1532078929210645¬if_t=feed_comment&ref=notif Actually I did not use cross mod or hard sync. Just ramp waveforms (VCO2 at half level) with resonance and EG modulation at full, with unison turned on. The key is those SVF filters and full EG modulation - little known secret is that the modulation depth isn't identical between voice cards due to imperfections in the circuit. With greater modulation depth, VCF Cutoff is going to vary between voices. But that "imperfection" is the key to the sound. By pushing EG modulation to max, you're exploiting the imperfection because as the EG is decaying, the VCF cutoff of all those voices firing in unison go from very different to closer. That's how that "grind" is created - badly matched cutoffs sweeping, then as it decays to sustain level the cutoffs are now closer. Then the patch is just fine tuning sustain level and VCF cutoff until it is "just right". No doubt that some distortion in the 3080s is also adding some dirt to the sound. I've been chasing "that sound" for years. It wasn't until I got the OB-X that I realized how the "imperfections" were a big contributor. Every other synth was "too perfect". I used to use VCO2 FMing VCF cutoff on the Memorymoog but never got it right. Only the OBX or a SEM polysynth (albeit a bit more work) can pull this off. That sound was a factory preset for the pinstripe version of the OBSX, but never the OBX. But the OBSX preset doesn't work because the VCF is swept on release NOT decay. Sent from my iSoundDesignLibrary, MC On 7/19/18, Andrew Scheidler <xxxxxxxx@xxxxx.xxx> wrote: > IIRC, it's one of the original 32 presets. Basically the envelope sweeps > VCO2 pitch down with Cross-Mod (between the VCOs) turned on. Pretty sure > the VCF is swept down along with the VCO, along with a fair bit of > resonance. And it's in unison so all eight voices are playing, albeit each > slightly different. I've never come across another synth that can nail the > sound. > > Drew > > On Thursday, July 19, 2018, Jason Proctor <xxxxx@xxxxxxx.xxx> wrote: > >> hey Mike, can you post the patch? :-) >> >> >> >> On Thu, Jul 19, 2018 at 12:07 PM, Andrew Scheidler <xxxxxxxx@xxxxx.xxx> >> wrote: >> >>> Having played that patch on MC's OB-X, I can assure you that it is the >>> exact monsterous unison cross-mod sound that poured out of the PA when >>> Geddy played it :-) There is nothing else that comes close. >>> >>> Drew >>> >>> >>> On Thursday, July 19, 2018, Jason Proctor <xxxxx@xxxxxxx.xxx> wrote: >>> >>>> that's the one >>>> >>>> >>>> On Thu, Jul 19, 2018 at 11:55 AM, Steven Clements >>>> <xxxxxxxxxx@xxxxx.xxx> >>>> wrote: >>>> >>>>> this one >>>>> https://www.youtube.com/watch?v=UuOU9CyWIh0 >>>>> >>>>> >>>>> *Steven* >>>>> >>>>> On Wed, Jul 18, 2018 at 10:57 PM, Jason Proctor <xxxxx@xxxxxxx.xxx> >>>>> wrote: >>>>> >>>>>> is your patch just a regular ol' big resonant sweep? i saw a youtube >>>>>> video of someone doing a variant on the OB-6 which involved turning >>>>>> off >>>>>> keyboard tracking for VCO 2, tuning it to the right pitch, setting up >>>>>> filter keyboard tracking, then playing 6-note chords. massive sweeps >>>>>> to be >>>>>> had with this technique! >>>>>> >>>>>> IMHO the OB-6 should have a drift parameter for the filters too, not >>>>>> just the oscillators... >>>>>> >>>>>> >>>>>> On Wed, Jul 18, 2018 at 7:56 PM, Michael E Caloroso < >>>>>> xxx.xxxxxxxxxxx@xxxxx.xxx> wrote: >>>>>> >>>>>>> ...when you play "Tom Sawyer" in a band using the OB-X and despite >>>>>>> lacking a stage monitor you can hear that opening grinding rezz >>>>>>> behind >>>>>>> the large outdoor PA. >>>>>>> >>>>>>> *Eeeeeerrrrrrooowwwwwwoooooooooooooo.... >>>>>>> >>>>>>> Sent from my iModernDayWarrior, >>>>>>> MC >>>>>>> >>>>>> >>>>>> >>>>> >>>> >> >