#161

Here’s some basic convolution fun (going through Belgrad). I’m really enjoying the module!

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#162

thanksl sounds great, weird and unusual!

so this is live convolution right? two live audiosignals, and one is convolving the other in real time?
…how the f@#&? is that possible in real time??? is there a significant delay to the processed audio?

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#163

Yeah curious what these sources are. Sounds great.

#164

Thanks for the examples! Yeah would love it if we could hear one where you played the two audio signals to hear them dry and then playing the convolution

#165

Sorry for not posting also the two dry signals - I see that it would’ve been helpful. It’s two loops of mine that I’ve had kicking around for a few years, and these days tend to use as references when testing FX.

This MP3 demos each loop once (first is the convolution channel, the second the sampler channel), then switches to live convolution without any CV or filter.

Then this is live convolution with manual adjustment of the convolution length control more or less from one extreme to the other. At least in this example, the effect is a little different from the impulse loaded from SD, and reminds me a bit of some of the modes in Mutable Warps. Don’t know what’s going on beneath the hood, so to speak. I wonder if it’s somehow using lots of small buffers.

Edit: Just to be clear, the audible noise floor is from the trusty ol’ G-Storm DC571.

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#166

New c1 is here and it is sounding fabulous so far! Musical demos soon, I promise.

But I am very annoyed at the fact that Mungo modules’ hole spacing apparently don’t fit on M3 threaded strips :frowning_face: John says they work with M2.5 threaded strips or sliding nuts, or you can use captive panel M3 screws (which we all have handy, yeah?) :roll_eyes: Guess who’s going to take a file to the slots instead? (this guy) :point_left: :point_left:

EDIT: I was able to bend out the side of my 4ms Pod 40X a bit to make it fit! PS Mungo modules fit in the deeper pods.

#167

He could be windowing the signals. Generally it is taxing but nowardays not impossible, kyma does it since the mid 90’s, max also lets you do this and Mungo uses capable boards for all these modules from what I understand. Id feel though that using an impulse response is probably a better way to get nice results out the convolution process.

#168

Yes. I am a video artist. Once I learned about Mungo frequency range from Kjell Bjørgeengen
(https://bjorgeengen.com/) I tested most of the modules with my video synth. The w0 is a must; tell John you want Benton’s mod and he’ll clock the frequency range even higher for you. w0 is also fundamental to my Vectrex light drawings. The others aren’t essential for video but I love the sound of every digital Mungo module except for the v0, which I never learned to use properly. The c0/c1 I haven’t tried yet. I have two p0s coming tomorrow and I’m eager to play those as well.

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#169

I unexpectedly managed to score a Storage Strip purchase for my d0. I haven’t connected the Zoom functions yet as I already have the zoom switch on the panel, but I tried to see if the Save/Load functionality works and I seem to get the Tune signal turned on every time I try to load or save on a different location. As you can imagine that is frustrating. It also doesn’t seem to save anything, it just seems to load a “default” setting or something to that extent.

Does the Zoom functionality need to be connected? Is that at fault? I assumed that plugging the SS to the same bus would suffice, but something is weird. Any advice or relevant links would be much appreciated, thanks!

#170

I have a storage strip and d0 and haven’t experienced this behaviour… but have never had it in the case without connecting the zoom, so you should definitely try that before getting too worried.

As far as I’m aware for saving states you shouldn’t need the zoom connected however.

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#171

From memory: The zoom signal is needed for saving. Without zoom it loads instead.

It shouldn’t matter where that zoom signal comes from.

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#172

That’s what I am worried about.

I guess I’ll try connecting the SS zoom to the Mungo and see if the issue is that I can only load a weird default thing which engages the Tuning. How weird is that?!?

EDIT

Seems that “the D0 defaults to having all blank settings load with the tuner enabled” so I’m running into blank save locations.

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#173

Oh it’s “mungo weird” but not too weird because I had the same issue! From email archive with John about my same issue:

“To save a configuration (it stores all the buttons/modes too) you need to hold the zoom switch in the “+” position when sending a program change message. Those messages are sent for both save and load commands of the select bus.”

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#174

Was confusing to figure out for the first time using the midi addon too, saved over my settings quite a few times. All good once you understand it.

#175

Yes, thank you, I assumed from your previous post that the + needs to be engaged. You mentioned that the zoom function needs to be there, and it couldn’t have been a coincidence that the SS requires that you press the +/save button.

So here’s what happens in case anybody else runs into this:

a) The d0 defaults to settings that have the Tune engaged. If you suddenly get a sound, that’s why.
b) If you haven’t connected the SS to the Mungo module, then you need to hold down Save/+ on the SS AND hold + on the Mungo at the same time. Then you can save your settings.
c) Save over the default/blank save locations that make that sound.

I can also verify that the SS works with the Malekko Quad VCA. Not that it matters here, but hey, it’s super nice to see it working :slight_smile:

Thank you all for a quick response. I was baffled there for a bit.

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#176

Inspired by @smbols I decided to use my D0 as a trigger delay last night. Such a fun use for it. Instant wonky rhythms. Here it is pinging a Res-4:

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#177

Has anyone else here had any trouble with the noise floor of d0? I have read of other users’ experiencing issues with noise, but they don’t seem to figure here. Here’s what the problem isn’t (so far as I can tell):

  • Single or combined zoom-range values for various parameters (CV in, channel A amplification, slew)
  • Gain staging in the signal chain
  • Zoom connections
  • An iffy power ribbon or bus-board socket

Things I have not yet ruled out:

  • An undiagnosed problem with the PSU or bus board (no other symptoms detected so far)
  • Noise leaking from elsewhere in the rack (haven’t finished testing this yet but it’s starting to look unlikely)
  • Faulty module (extremely unlikely I’m sure)
  • This is just how the module is (doubtful?)
  • Some other unknown factor

What I experience is a constant noise floor, equal in both delay channels and unaffected by the channel A amp level (or any other parameter). The noise is loud enough to disturb delay lines that do not use any kind of lowpass filter (e.g. chorus). Less dynamic signals, such as non-rhythmic material, drones, pads, whatever are enough to drown out this noise even without filtering. But with drum lines for instance the noise in effect ruins any unfiltered delay lines by breaking the silence between hits.

I’m sure there’s something wrong here because of the extent to which this symptom is disruptive of a mundane application of the module. But it’s always been like this (received a couple of months ago from John directly).

Any suggestions welcome. I’m looking into the matter independently as much as I can before I bother John about it.

#178

Hmm, normally I’d be looking to the CV attenuators and slew when there’s a noise issue on the d0 but it sounds like you’ve already done that. Sounds like it’s time to talk with John. Knowing him, there will be some questions regarding your PSU :sweat_smile:

For anyone else with noise issues, the first trick to try is to center the attenuverters and set slew to appx. 11 o-clock, all while zoomed out. Sometimes I’ve tried dummy cables or a stable 0V source in the CV inputs if the noise is bad enough.

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#179

Yeah that doesn’t sound normal to me, either. I just tested mine and even with slew set to none, and with full gain, CV amplitude, and delay time, I only get noise mixed in with the delayed sound itself. Any silence is still clean if there isn’t any feedback patched up.

1 Like
#180
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