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Post by funbun on Jan 25, 2021 0:00:23 GMT
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Post by MikMo on Jan 25, 2021 8:05:01 GMT
That's interesting.
There's no reason why this should not work in AE.
Of course we do not have some of the fancy modules, but we can already create more complex waveforms by crossmudulation between two VCO's or even "self modulation" within one VCO, and then use that as one of the timbres.
Mikael
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namke
wonkystuff
electronics and sound, what's not to like?!
Posts: 654
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Post by namke on Jan 25, 2021 8:47:13 GMT
This is the kind of thing I had in mind when I made the ‘qvca’ — cross fading between waves at LFO rates gives some nice evolving sounds, but by using an audio rate signal as a cv, it is possible to create hybrid wave shapes at a cycle-level… maybe a YouTube video is needed.
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Post by moruial on Jan 25, 2021 10:09:56 GMT
maybe a YouTube video is needed. Yes please! I'd like to see more about that QVCA of yours. |
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Post by rockysmalls on Jan 25, 2021 11:34:15 GMT
This is the kind of thing I had in mind when I made the ‘qvca’ — cross fading between waves at LFO rates gives some nice evolving sounds, but by using an audio rate signal as a cv, it is possible to create hybrid wave shapes at a cycle-level… maybe a YouTube video is needed. “ but by using an audio rate signal as a cv, it is possible to create hybrid wave shapes at a cycle-level… “ you see, that’s salesmanship right there!! i didn’t think i necessarily needed your qvca until you put that thought in my head..  |
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Post by keurslagerkurt on Jan 25, 2021 23:04:34 GMT
Makes me realize again that i definitely underestimate EVERY module in my rack 😅
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namke
wonkystuff
electronics and sound, what's not to like?!
Posts: 654
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Post by namke on Jan 26, 2021 10:04:16 GMT
This is the kind of thing I had in mind when I made the ‘qvca’ — cross fading between waves at LFO rates gives some nice evolving sounds, but by using an audio rate signal as a cv, it is possible to create hybrid wave shapes at a cycle-level… maybe a YouTube video is needed. “ but by using an audio rate signal as a cv, it is possible to create hybrid wave shapes at a cycle-level… “ you see, that’s salesmanship right there!! i didn’t think i necessarily needed your qvca until you put that thought in my head..  Well, I tried it last night, but had problems with keeping oscillators in sync (it can be done with the VCO but the selection of waveshapes is limited of course. Basic setup (and this can be done with the 2VCA as well I would think; as long as you have a means of inverting a CV): * VCO Square output ---> VCA1 CV * VCO Saw output ---> VCA1 audio input * inverted VCA1 CV ----> VCA2 CV * VCO Tri output ----> VCA2 audio input * VCA 1&2 output ---> mixer The output of the mixer is now a hybrid of saw/tri - the switching point can be changed by altering the PWM control of the VCO. Unfortunately, because of the big difference in amplitude of the VCO output waves, there is some 'balancing' necessary (also, the hard switching between saw and triangle waves means that there are a lot of discontinuities and high-frequency content in the output). I think that a trapezoid (or slew-rate limiter/LPF would also help here). Using the triangle or saw wave to control the morphing of waveshapes is also possible of course (but with less control over the 'switch point'). |
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Post by keurslagerkurt on Jan 26, 2021 10:40:11 GMT
That Doepfer morphing module also seems very useful, maybe an idea for a future DIY project |
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namke
wonkystuff
electronics and sound, what's not to like?!
Posts: 654
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Post by namke on Jan 26, 2021 11:06:39 GMT
That Doepfer morphing module also seems very useful, maybe an idea for a future DIY project Yes, kind of a phased-envelope? I only skimmed the video, so should look at it properly |
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Post by keurslagerkurt on Jan 26, 2021 11:12:07 GMT
That Doepfer morphing module also seems very useful, maybe an idea for a future DIY project Yes, kind of a phased-envelope? I only skimmed the video, so should look at it properly Video is worth a watch, def the second half. For the doepfer module: the single'triangle' sign at each output is not with time on the x-axis (so it's not env style), but with input cv on the x Axis. So depending on your cv in or the 'morph' knob, each output either outputs 0V or some value on that triangular ramp up - ramp down. So you can actually use one cv to send four cv's that make your Vca's morph into/after eachother. I think it would be a great paring with you qvca haha |
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namke
wonkystuff
electronics and sound, what's not to like?!
Posts: 654
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Post by namke on Jan 26, 2021 11:24:45 GMT
Yes, kind of a phased-envelope? I only skimmed the video, so should look at it properly Video is worth a watch, def the second half. For the doepfer module: the single'triangle' sign at each output is not with time on the x-axis (so it's not env style), but with input cv on the x Axis. So depending on your cv in or the 'morph' knob, each output either outputs 0V or some value on that triangular ramp up - ramp down. So you can actually use one cv to send four cv's that make your Vca's morph into/after eachother. I think it would be a great paring with you qvca haha Ah, nice - makes sense. Another module for the notebook! |
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Post by funbun on Jan 26, 2021 16:20:12 GMT
I tried this earlier this morning with the 2 VCA. While I could get a blended waveform, the thing is, how the heck can I get the sequencer to "play" modulate the new waveform? If go SE16 > QUANTIZER > VCO, well, it will only modulate one of the VCOs. The whole waveform, well, do I need to go VCA > VCA? That's wouldn't change the pitch on the VCOs/total waveform, right?
Would you have to run one signal out to both two VCOs so that the final waveform is playing quantized melodies in the new waveform? Or would you need to save the save form and wait for the new sample player in order to use the new waveform like a VCO?
It's great that we can great analog "wavetables", but I want to make quantized, four-part melodies. I have four sequencer s to feed. Assuming the above could work, I'd need 50 oscillators just to test this thing out. Maybe that's why Robert built the new Drone 38 and DRONX modules?!?
For me it might be better to buy WAVETABLES or GRAINS.
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Post by MikMo on Jan 26, 2021 17:06:28 GMT
Could you have it like this:
the two VCO's are in tune, play both with the CV out from the same SEQ (mult from Quantizer), then have the two VCA's modulated by another SEQ (or some other modulation source).
Maybe that was what you already did ?
If the two VCO's tracking is not identical, it will only work for a limited range.
Mikael
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Post by funbun on Jan 26, 2021 19:11:44 GMT
If the two VCO's tracking is not identical, it will only work for a limited range. Mikael Yeah, that's why we need the precision adder. |
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Well, I tried it last night, but had problems with keeping oscillators in sync (it can be done with the VCO but the selection of waveshapes is limited of course.