Klavis - Quadigy - Quad Envelope Generator

[sir stony]

Whoa, and merry christmas to you, too, Eric!
I just love your way of updating, made so easy.

[D_Robot]

Merry Christmas and thanks for the update. (Including fixing the full attack bug, yay)

Much appreciated and just in time for the hollibags

[mopoco]

@klavis:
is there enough 'juice' in this machine to add 2x global clockable LFOs that we can drain to cv destinations.
i'd love to add clocked random and clocked sines/triangle/saw/square sources at the same time:
i'd like to keep feeding a clock into cv in 2: but then there's only one cv in left i can mess with.

e.g.:
- 4th envelope cycling with external clock @ cv-in-2 (LFO/OSC)
- first 3 envelopes in adsr mode
- decay of the first modulated by a clocked random source
- decay of the second modulated periodically by a slow sine/triangle
- decay of the third modulated by either clocked random or sine

[mdoudoroff]

I don’t know about adding additional on-board modulation LFOs, but it does seem a little odd we have this modulation matrix, but the envelopes themselves cannot be modulation sources for it. It seems like the interface could handle it (hold down CV Matrix button and tap one of the four envelope buttons) but there may be architectural limitations. If it was possible, then those cycling envelopes could be your on-board LFOs, and even non-cycling envelopes would be useful for ducking-type behaviors or creative interacting behaviors. If there ever was a Quadigy 2, my top request would be two more CV ins.

Regardless, what a terrific module and value.

[Zentek]

I don’t know about adding additional on-board modulation LFOs, but it does seem a little odd we have this modulation matrix, but the envelopes themselves cannot be modulation sources for it. It seems like the interface could handle it (hold down CV Matrix button and tap one of the four envelope buttons) but there may be architectural limitations. If it was possible, then those cycling envelopes could be your on-board LFOs, and even non-cycling envelopes would be useful for ducking-type behaviors or creative interacting behaviors. If there ever was a Quadigy 2, my top request would be two more CV ins.

Regardless, what a terrific module and value.

Unfortunately, it would be difficult adding more real time dynamic modulations.

For those writing code, here is a quick explanation of the context:
In order to avoid the user having to fill slots for modulations (where you each time have to decide what source and then to which destination), we have the full matrix of modulations computed permanently. This is a design choice to avoid restrictions and ease the user interface: it is is allowed to have the 156 modulations all active at once, each with a dedicated level and polarity.
Despite the best DSP coding, the modulation matrix is what takes the most computing resources in the Quadigy, even if you do not set any modulation.
The option of conditional processing (compute only when the settings are non-zero) would be worse: with too many modulations active, we could not process them all in time.

Nevertheless, we have a few ideas on the back burner to enrich the product without breaking the user interface.
Don't hold your breath; we need to collect more feedback and balance everything before taking a decision.

Thank you to all for your interesting suggestions.

Eric

[mdoudoroff]

I made a brief video about the Minimoog-style retriggering effect:

[fileandplot]

^ very cool. thanks!

[Jee]

double entry delete

[Jee]

hi all,
I noticed a small glitch when using Quadigy when patched to VCA's.
I first noticed a subtle but clearly present "glitchy/metallic noise artifact" at the very beginning and end of my sounds.
Especially when doing very pure sounds made of sines essentially, they should be crystal clear and the glitch is quite obvious with them.
I thought about the Intellijel case power supply first as it's not known to be the cleanest but still, it didn't quite work with what I was experiencing.
I finally isolated the problem when testing with an analog Befaco rampage in place of Quadigy and glitch was gone all things equal.
I tried with multiple sound sources each time duplicated into 2 identical VCA's each being modulated by its own envelope (rampage or quadigy) and switching between the 2 and always same result: glitchy sound with quadigy, crystal clear with Rampage.
I tried also multiple sets of VCA (Nano modules, Xaoc, Erica Synth) always same result (but that's a good VCA test as well the small eric 3hp is actually pretty surprising for its price! )
Also the glitch is affected depending on quadigy segments times so it's undoubtfully linked I think.
I even tried to plug Quadigy to a different case (non intellijel) just to be sure about power supply noise but still same result.
So I was wondering what could cause that... pretty odd.
I didn't write to Klavis yet, just checking first if anyone had the same issue.
I did the latest firmware update (same result).

[droningspaghettimonster]

hi all,
I noticed a small glitch when using Quadigy when patched to VCA's.
I first noticed a subtle but clearly present "glitchy/metallic noise artifact" at the very beginning and end of my sounds.
Especially when doing very pure sounds made of sines essentially, they should be crystal clear and the glitch is quite obvious with them.
I thought about the Intellijel case power supply first as it's not known to be the cleanest but still, it didn't quite work with what I was experiencing.
I finally isolated the problem when testing with an analog Befaco rampage in place of Quadigy and glitch was gone all things equal.
I tried with multiple sound sources each time duplicated into 2 identical VCA's each being modulated by its own envelope (rampage or quadigy) and switching between the 2 and always same result: glitchy sound with quadigy, crystal clear with Rampage.
I tried also multiple sets of VCA (Nano modules, Xaoc, Erica Synth) always same result (but that's a good VCA test as well the small eric 3hp is actually pretty surprising for its price! )
Also the glitch is affected depending on quadigy segments times so it's undoubtfully linked I think.
I even tried to plug Quadigy to a different case (non intellijel) just to be sure about power supply noise but still same result.
So I was wondering what could cause that... pretty odd.
I didn't write to Klavis yet, just checking first if anyone had the same issue.
I did the latest firmware update (same result).

send Eric a line, he fixed my quadigy which produced a very short tick/glitch sound in the attack phase of snappy envelopes on softer sounds and was very responsive/helpful while figuring out what was going on. the fix difference made huge difference. such a lovely module.

[Jee]

OK cool thanks, I'll do that! Sounds like my issue so I'm very glad to hear there is a fix
I actually do really love this module's architecture it is incedibly easy to use and convenient with polyphonic patches!! And still very very deep. The sole downside to me is jacks at bottom, I realized it's not ideal having them there when moving sliders I would prefer them on top but well... small thing.

[Graffie]

It really depends on the case, how the case is positioned and what other modules you have. I really like having the jacks at the bottom since I have the Quadigy at the top row of my case and my case is always standing up vertically. It would be a different story if I mounted Quadigy at the bottom row. Then I would have liked the jacks to be at the top.

[Jee]

fair point
They should make modular modules

[mopoco]

I’m pretty sure you’d be able to operate the quadigy up side down after some hours of wiggling

[polyshaft]

hi all,
I noticed a small glitch when using Quadigy when patched to VCA's.
I first noticed a subtle but clearly present "glitchy/metallic noise artifact" at the very beginning and end of my sounds.
Especially when doing very pure sounds made of sines essentially, they should be crystal clear and the glitch is quite obvious with them.
I thought about the Intellijel case power supply first as it's not known to be the cleanest but still, it didn't quite work with what I was experiencing.
I finally isolated the problem when testing with an analog Befaco rampage in place of Quadigy and glitch was gone all things equal.
I tried with multiple sound sources each time duplicated into 2 identical VCA's each being modulated by its own envelope (rampage or quadigy) and switching between the 2 and always same result: glitchy sound with quadigy, crystal clear with Rampage.
I tried also multiple sets of VCA (Nano modules, Xaoc, Erica Synth) always same result (but that's a good VCA test as well the small eric 3hp is actually pretty surprising for its price! )
Also the glitch is affected depending on quadigy segments times so it's undoubtfully linked I think.
I even tried to plug Quadigy to a different case (non intellijel) just to be sure about power supply noise but still same result.
So I was wondering what could cause that... pretty odd.
I didn't write to Klavis yet, just checking first if anyone had the same issue.
I did the latest firmware update (same result).

I was struggling with the exact same problem.
The current firmware is v1.12, but is there a private firmware that resolves the issue?

[Jee]

Not yet, Klavis told me send back the module but I didn't yet because of the covid stuff...

[polyshaft]

Not yet, Klavis told me send back the module but I didn't yet because of the covid stuff...

Thank you.
I also contacted Eric and had him respond.

[Jee]

He seems like a helpful nice guy!
Do you also have issues with the faders? I find pretty hard to set exactly the times I want.
Figures are wobbly in a range of 3 to 5 milliseconds (sometimes more) and for the most percussive patches it’s a pain.
I use the global time at 20% to help with this but are your faders doing the same « dance » than mine?

[GregIcky]

Just gotta say WOW... I finally got Quadigy in my case. It’s kind of amazing that’s it’s basically everything it claims to be. I’ve got a few other EG’s - Maths, Zadar, Kermit mk3, Pons Asanorum and a single VCADSR - all do their own thing obviously, but for just plain old ADSR duties Quadigy takes the cake! I mainly used my VCADSR for standard “playing” and it does a great job. But, I could never really dial in the decay - or maybe put another way, it didn’t seem to have a well-rounded effect in relation to the sustain. Given, it’s a much more “basic” module but I’m really just blown away by the absolute range of each slider on Quadigy and how they affect each other.

Anyway, I just have a basic question that I’ve not been able to deduce from reading the manual: Is there a way to trigger all 4 envelopes by just using one gate input? I’m assuming there is a way to do this especially since there are little arrows printed on the panel between each of the gate inputs 1->2->3->4 ? I didn’t read anywhere that they are normaled together. And if this isn’t a built in feature would maybe sending a gate into the clock input work, like sending a keyboard gate signal in not an actual clock pulse?

Thought I’d throw this out there and see if any one knows...

[ronnieb]

Just gotta say WOW... I finally got Quadigy in my case. It’s kind of amazing that’s it’s basically everything it claims to be. I’ve got a few other EG’s - Maths, Zadar, Kermit mk3, Pons Asanorum and a single VCADSR - all do their own thing obviously, but for just plain old ADSR duties Quadigy takes the cake! I mainly used my VCADSR for standard “playing” and it does a great job. But, I could never really dial in the decay - or maybe put another way, it didn’t seem to have a well-rounded effect in relation to the sustain. Given, it’s a much more “basic” module but I’m really just blown away by the absolute range of each slider on Quadigy and how they affect each other.

Anyway, I just have a basic question that I’ve not been able to deduce from reading the manual: Is there a way to trigger all 4 envelopes by just using one gate input? I’m assuming there is a way to do this especially since there are little arrows printed on the panel between each of the gate inputs 1->2->3->4 ? I didn’t read anywhere that they are normaled together. And if this isn’t a built in feature would maybe sending a gate into the clock input work, like sending a keyboard gate signal in not an actual clock pulse?

Thought I’d throw this out there and see if any one knows...

Gate inputs are normaled so if you plug into input 1, it will trigger all 4 channels?

[suthnear]

hi all,
I noticed a small glitch when using Quadigy when patched to VCA's.
I first noticed a subtle but clearly present "glitchy/metallic noise artifact" at the very beginning and end of my sounds.
Especially when doing very pure sounds made of sines essentially, they should be crystal clear and the glitch is quite obvious with them.
I thought about the Intellijel case power supply first as it's not known to be the cleanest but still, it didn't quite work with what I was experiencing.
I finally isolated the problem when testing with an analog Befaco rampage in place of Quadigy and glitch was gone all things equal.
I tried with multiple sound sources each time duplicated into 2 identical VCA's each being modulated by its own envelope (rampage or quadigy) and switching between the 2 and always same result: glitchy sound with quadigy, crystal clear with Rampage.
I tried also multiple sets of VCA (Nano modules, Xaoc, Erica Synth) always same result (but that's a good VCA test as well the small eric 3hp is actually pretty surprising for its price! )
Also the glitch is affected depending on quadigy segments times so it's undoubtfully linked I think.
I even tried to plug Quadigy to a different case (non intellijel) just to be sure about power supply noise but still same result.
So I was wondering what could cause that... pretty odd.
I didn't write to Klavis yet, just checking first if anyone had the same issue.
I did the latest firmware update (same result).

I was struggling with the exact same problem.
The current firmware is v1.12, but is there a private firmware that resolves the issue?

It's aliasing. As you have discovered, it's definitely more obvious with some patches than others. I don't use mine to control VCAs for this reason. Other modulation seems fine.

[Jee]

Aliasing? Wouldn’t have bet on this but maybe.
I can get it with very fast transients (I.e. high frequencies) but the glitch was there even with lower time values if I remember well.
Anyway, the core purpose I had for this module was to control 4 VCA’s in polyphonic patches :(
This + times difficult to set properly it is quite a deception in the end even if I love the possibility to adjust all 4 env at the same time which was one of the reasons of this purchase.
I don’t really need all the feature it has, I give it simple tasks.
I might sell this module as soon as I find a good replacement as it doesn’t serve well my purpose even though I can live with it for the moment..

[lisa]

I noticed a small glitch when using Quadigy when patched to VCA's.
I first noticed a subtle but clearly present "glitchy/metallic noise artifact" at the very beginning and end of my sounds.

Very odd. It can't be normal operation of the module, can it? Otherwise everybody would have mentioned this issue, I'm thinking. There must be some power issue?

[Zentek]

Anyway, I just have a basic question that I’ve not been able to deduce from reading the manual: Is there a way to trigger all 4 envelopes by just using one gate input? I’m assuming there is a way to do this especially since there are little arrows printed on the panel between each of the gate inputs 1->2->3->4 ? I didn’t read anywhere that they are normaled together. And if this isn’t a built in feature would maybe sending a gate into the clock input work, like sending a keyboard gate signal in not an actual clock pulse?

The reason you have not found an answer to your question in the manual is because it's missing !
Yes, the arrows next to the inputs mean that the signal is sent to the next inputs if they have no jack inserted.

Thank you for drawing my attention and super thanks for the praise.

Have a good time

Eric

[Jee]

I noticed a small glitch when using Quadigy when patched to VCA's.
I first noticed a subtle but clearly present "glitchy/metallic noise artifact" at the very beginning and end of my sounds.

Very odd. It can't be normal operation of the module, can it? Otherwise everybody would have mentioned this issue, I'm thinking. There must be some power issue?

I don't think it's a power issue I tested 2 different cases. Another user mentioned the same issue above.