The envelopes can just be default and Mod wheel should be on full.
Ok, my issue is this. As I play this setting, OSC 3 will play, then cut out. To get it back I have to take the Mod wheel half way and it kicks back in. Then, as I raise it back to max, it’ll play fine and then cut out again. Any ideas what this might be? OSC 3 is getting overloaded or what? Also note that if OSC 3 is set to 16’ and up, this won’t happen. It’s just when it’s set to 32’. If Mod wheel is maxed, but Mod amounts are set to half, this also prevents OSC 3 from cutting out.
Now it seems to me that what this might be, if I didn’t read the post too quickly is that you are doing pulse width modulation, but you are narrowing it so much that you are canceling out the wavelengths.
Try to lessen the mod amount and see if that doesn’t help. Or put it on straight up sawtooth wave.
Yeah, whats funny about Moogs is that is ONE way to program it where it won’t make a sound. Then if the filter cutoff is low enough and the volume envelopes are long enough thats another way it won’t make a sound. These reasons are why my Micro went unused for the better part of a decade after I doscivered it. This was also the diagnosis on the only Phatty I have ever touched at the guitar center. I went through the power cables, master volume, amp volume before I looked and someone had he filter all the way closed and the volume envelopes all the way up loloololoo.
This happens to me all the time when I make the WAVE the destination. I guess the tehnique here is subtle modulation? I used this cancellation trick on my Etherferatu score where the waves that are already phasing eventually narrow to the point of what I’d call total cancellation or whatever (for lack of a better term) It sounds more abrupt than releasing the key like it grinds to a screeching halt in a way that releasing the key doesn’t.
I also need to point out that my Voyager isn’t an OS.
I’m thinking that’s the case. But, it doesn’t happen instantly which makes me think it’s a problem. It cuts off at ‘odd’ times.
That is, if I’m playing around with other parameters on the panel, they wouldn’t just kick in at different times if all other settings remain the same. (I don’t know if I’m making sense) Hold on, let me get a degree in E.Engineering…
Whoever’s willing to test this out, it’d be nice to hear what others are experiencing.
Xanthene,
WHat I did was created an audio demo starting from the initial parameters and I programmed the preset in realtime. You just have to tell me if this sounds anything like what you were working with over there. At various times I turned the sync off and on and turned osc 1 and 2 off to show the PWM of osc 3.
Its a pretty neat sounding preset.
Right now it is uploading but by the time I post this it should be ready for you to hear, and I also have it set so you can download it, in case your internet sucks.
I thought my Mod Wheel may have been at fault. So I went ahead and switched the Controller for both Mod Busses to Filter Envelope and used the Sustain knob. And it does the same thing. I’m in the process of uploading a video/audio file on youtube (it’s all I know right now) to show you. All I’m doing in this video is holding a note, and going from 0 to full on the Filter Sustain to show what happens when both Mod Busses are initiated. And in this test, I just turned off all other OSC considering it’s OSC 3 that’s causing me problems. At another point in the test, I go to a higher octave, and the issue doesn’t come up until I go back to a lower octave (you can hear it happen instantly upon the switch to the lower octave)
Update I tried something else. I made the Source of both Mods OSC2 instead of OSC3, and copied my OSC3 settings for OSC2. Played with the filter sustain and, in this case, there’s no problem. OSC2 doesn’t cut out, but sounds beautifully modulated. Something is wrong with OSC3, unless there’s something in the circuit that makes it behave differently when modulating it in this way. Yours didn’t seem to be exhibiting what I’m hearing.
From your patch above, you seem to be pulse width modulating a wave with itself! And then doubling the modulation (same on each mod buss).
As the PWM locks into itself, you are bound to get some intermodulated weirdness. Especially at audio rates and with squarewaves. At large mod amounts, the pulse width will get very narrow, which by follow on might cause mayhem with your sound.
Can you do your cascading PWM on osc 3 then turn it off at the mixer and listen to 2 or 1?
I’m not sure I understand the second part of your message. How would I do that. And why do I want to listen to OSC 2 and OSC 1 if my issue is with OSC 3? Keep in mind that I’ve done the same patch with OSC 2 modulating with itself on both mod busses and it didn’t cut off, even with the square wave and low octave.
As soon as it cuts out, when I’m playing a low note (cause it cuts out usually at 16’ and below), it won’t kick back in if I play a higher note. It seems I always have to ‘reset’ it by either reducing the amount of modulation, or switching the mod source to something else and then back to OSC 3. That’s why I don’t think it’s normal. IMO, if this was normal, playing a higher note would bring back the audible modulation that I can hear when I start with higher notes, but that gets cut out when I descend to a lower note. As soon as I hit a low note that it doesn’t like, it ‘quits’ and I need to reset some settings before it comes back.
It sounds like you are over-extending the wave control, taking it to a point where the pulse width is too narrow to make a sound. Try it with just one mod buss, it sounds pretty cool!
And it probably gets “stuck” due to some feedback mechanism going on. I’m not sure why it only happens sometimes, it might be something to do with the phase of the oscillator/ at which part of the cycle the modulation hits.
Yeah, with one mod, it sounds good! Mind taking a sound sample of yours? I’m glad it’s not just me. It’s weird that OSC 2 doesn’t have that issue with the same modulation settings though.
