I had a long session last night with mixed results. I must say I find the module difficult to use in live-convolution mode, the main reason for which being that very long convolution values, which tend to bring out the most ‘spectral’ results, greatly reduce the overall signal gain. Hence the amplifier pot; but this means you must be ready to adjust said pot all the time. Note the noise floor when the output is particularly low (not a complaint, just worth noting).

Here is the best of what I was able to do last night. In most of them the signal goes through 2hp Verb to add stereo space.

Solo soprano convolved with square-wave arpeggio. Long convolution level. Frequency offset reduced towards end of sample.

Solo soprano convolved with, er, I think itself. Convolution level and frequency increased.

Self-convolution of While Shepherds Watch Their Flocks By Night. Long convolution, frequency reduced.

Shepherds again. Low frequency and short convolution, both increased.

Self-convolution of field recording; squelchy bog and ice. Convolution gradually increased. Quite satisfying spectral effects.

Self-convolution of square-wave sequence from w0. Convolution gradually increased.

Live convolution of two samples (vocal and pad).

I hope these give some idea of the spectral-processing capabilities of c1. Fwiw I suspect v0 may be more rewarding at this particular application, and I would love to hear more of it.

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whoa, this is a lot, thanks so much for taking the time to do this, much obliged!
that self convolved field recording one is especially tasty…

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thanks @Net for these recordings!
they sound great, the “problem” with eq-ing c1 i guess are the frequency peaks one gets especially with self-convolution? i at least have such problems with the c0, eg as soon as the input frequency matches the convolution file frequency i have enormous spikes at those frequencies. a limiter doesn’t really help there unless you want to have those peaks sounding clipped. in the daw i use tools like dynamic eq, soothe etc for such recordings.

anyway, you kinda convinced me to order a c1, the experimental nature of it seems really rewarding! thanks!

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amazing! thank you so much for posting these.

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I’m glad the recordings were helpful. It was good fun making them and I certainly learned a bit more about the module myself while doing it.

I think that’s it, yeah. In that remark I meant to indicate also that I’m a bit of a rookie with EQ anyway, and the intense, murky resonances in spectral processing need a lot of attention later in the daw. I use dynamic EQ as well!

i almost wonder if maybe in a self-convolving situation a filter on one of the two inputs inputs might be helpful, so those frequencies are never totally sitting on top of each other.

but yeah i am having similar issues with the panharmonium when using sine waves with a low voice count and fast slices, those piercing frequencies really cut in. had similar problems with the SMR now that i think about it, and yeah, def required some triage in post after the fact.

still kinda want to give it a go though, ha. there is a v0 lurking in a store here in the states and part of me thinks ‘well maybe if i don’t gel with the c1 i could try out a v0 instead easy enough’

I did try having one of the self-convolving inputs go though f0 on the way back in. Although it yielded no results that I felt worth including in the demo files, it did give an extra layer of good control over resonances. Definitely worth including an LPF in the loop.

Not being especially familiar with vocoders, I tried playing around in ableton’s vocoder with the settings available on v0 – band count, base frequency, band width – and I’m think that module will offer more of the spectral processing stuff you seem to have in mind. Plus the band count range is wider than ableton’s! I actually want one as well now. :dizzy_face:

i recently tried some new things with my old g0 and some drum loops.

selfmodulation with its tracking output (to pitch):

and self-reset via its audio output and a comparator:

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Lush, especially those tearing sounds in the self-reset recording. Fantastic.
It’s a pity the tracking output is absent on the newer versions of g0. I’ve always been curious about it! Your recording inspired me to reproduce it myself with a mult, PLL and LPF.

it sounds really good. I can’t seem to get my g0 to sound as cool as this.
Did you just patch the tracking output directly to you pitch input? It seems to slew much more between in the pitchchanges, when I try this. Is there some feedback going on as well here?
And is the comparator also just straight from tracking output to comparator to reset input? Is there some random modulating the value of the comparator, so the trigger point changes? My tracking output on the g0 seems to output only negative voltage, which seems a bit of an odd choice to me. I can of course just invert it, but still.

tracking output directly to pitch in yes, careful adjustment of offset and cv attenuation.
the g0 is in both examples in card mode and needs a ramp on the depth (position) input, depending on the sample and the speed the selfmodulation works better and sometimes it kinda “locks” up. i also reset the sample.

i used the r*s ncom in the reset example and adjusted the threshold a little bit manually during the playing.

hm, i have to look at my tracking output, but i doubt it is negative voltage in my case!
i always before i start any patch with the g0, press the buttons a few times, the blue tracking button too, i believe it has some effect, it restores the module to a blank state in my mind…maybe that’s complete bs but i remember that the tracking output was a few times very weird and wonky and i had to press the buttons :slight_smile:
well, in the manual it says that the tracking button:
“enables correction of output pitch,hold when pressing the function button to latch setting.”
so i was kinda right, you have to press it so it adjusts its tracking!

cheers

question for mungo users of the zoom switch (which i’m guessing is most people?):

how much one-handed-zoom-and-knob-turning are you doing? i have a bunch of on-off-on switches laying around and i’m wondering if there is a disadvantage to using a latching switch for a diy solution vs the momentary (on)-off-(on) switches like on the stock zooms. i almost wonder if it would be better to have the ability to keep it zoomed out or zoomed in should you want to be able to do that…but perhaps thats not as useful as i am envisioning (and i’ll be finding out soon enough, but…)

thoughts? (also, apologies if this was covered somewhere previously and i missed it)

Having used the normal, momentary Zoom switch and also the momentary push button Zoom on Storage Strip, I might prefer a latching switch over both of them. The only issue with a latching switch is that many Mungo buttons have different functions when Zoomed, so you might inadvertently change a mode or something.

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In my experience, the switch is better momentary. My first DIY zoom was latching and it was clear immediately why the switch is intended to be momentary. Neutral/no zoom is overwhelmingly the most useful default range, and having to switch back to it manually all the time is a needless bother. I haven’t found many uses for holding zoom one way or another for more than a single knob adjustment at a time.

Moreover a momentary switch more often ensures your are only ever one movement away from either zoom out or zoom in. It seems like a quibble but I practically never turn a knob on a mungo without my other hand on the zoom. I feel it’s an essential aspect of quick and directed patching with them and that you the user should have as few obstructions to this as possible.

This is only my experience with it, of course. I just happen to think it works very well. I’m pleased to see that @desolationjones has had a different experience altogether!

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After dialing in some settings that I like using the zoom, I’m only messing with the default unzoomed ranges. Agreeing with Net, its pretty clear after a bit of use why it comes as a momentary switch. You might find some use with the latching switch when fine tuning while zoomed in. I have the zoom with the midi input and having a latching switch would be useful for sending midi CC messages to save presets.

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Yeah that’s very fair. I forgot that one of my common Mungo gestures is a the “scootch neutral, resume zoomed in”.

I personally prefer a latching switch for my zoom duties. It’s easy enough to remember to switch it back to center when needed, and I like to leave my d0 zoomed in whenever I’m using it for phase-shift level delays (which is a ton of the time).

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right on, so, sounds like a mixed bag depending on both module function and use cases…i’ll report back in when i have something to zoom in on or out from. thanks for the feedback all!

This evening I took receipt of a v0 from John. The recent discussion here about spectral processing piqued my interest and I couldn’t quite keep it at bay. I really wished to find out for myself what it’s like. I managed to get the order in before the years changed, so my resolution of having a purchase-free 2021 remains unviolated. It helps to have little rack space and to limit oneself to either Mungo or NLC!

The v0 has undergone a hardware revision consistent with those of g0, d0 and c0/1, so it may be that John is revising others of his 0 series modules as well.

I requested a tweak, namely assignable CV control. What was the filter width CV in can now be switched between filter width, analysis decay and band count.

I look forward to getting to grips with the module and will share useful knowledge (if any) and audio when I have enough familiarity with it

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man, this seriously bums me out.

i managed to find a (older one, apparently) and yeah, i really wish that band count had been cv controllable now that i actually have it in hand. only had it for about a week, and i finally built a zoom switch the other day, but right now i’m still struggling to get anything out of it thats even remotely like what i imagined and/or hoped it could do.

if you come up with any tricks that one could apply to an older revision, please share, and i’ll do the same!