Found you on modwiggler, and I'd just like to thank you for your work 👌🏻 I was in the market for a 281t and came across the Qarv, and your excellent manual and this video have totally convinced me to go with this module. Cheers from Aberdeen 😊
Great video. So that I'm clear, the cv for the VCA comes only from the AR envelope, correct? I'm trying to compare Quadrax+Quad VCA to the QARV and trying to wrap my head around what's different VCA-wise. The difference envelope-wise is easy. Just need a little help comparing the VCA aspects of the two. Thanks.
So the VCA input is for your audio (or cv) source, then the AR is applied to the CV for the vca. So you can externally patch your own CV for the VCAs if you want as well just by patching into the input of a channel and turning A and R all the way CCW. Hope that helps
@@RobotsAreRed going to put you on the spot here. After using QARV, do you still think Maths is the ultimate utility or has the torch been passed to QARV?
@@aaronn7576 Haha, honestly I think Qarv surpasses Maths for most things. I'm keeping Maths around for the gated cycle function along with if I needed some OR logic. So yeah I think the torch may be passing to Qarv as the ultimate!
Thanks for the in depth tutorial. With the left side 5v function, does it mean that it will output no more than 5v no matter what I'm feeding through it? For e.g if I have a 12v module that I want to modulate a non eurorack piece of gear with (which is not supposed to receive more than 5v) does routing it through the QARV's vca attenuate it?
That's a good question. I believe channel 1 maxes out at 5v, but obviously channel 4 will give you up to 10v. But now I want to double check on channel 1. I will report back.
Hi Robots Are Red. ^^ I have a question for you or anyone who owns this module. There's a subharmonics trick you can do with maths. Send a saw/pulse wave into the trig input and use the attack or release (not both) to create subharmonics. Its almost done in this video but it stops after only one sub-octave and the full range isn't shown. (attack and release are tweaked, making it appear not to work. ) My question is, If you just turn up the attack control (maybe with the shape control set to exponential) does it produce a subharmonic series?
@@RobotsAreRed Looking forward to hearing about the results! Some things I learned tat may be helpful. I'm told it needs an envelope/function generator that doesn't re-trigger until it's cycle is complete. (I learned this just this evening) This is necessary for keyboard tracking using just the oscillator as a trigger, and apparently its why maths works so well and why you can use its attack or release stage to control the pitch of your sub-harmonic tone. But If you don't have that, it looks like you just need an envelope that has an attack or release phase that isn't interrupted by trigger signals, and CV inputs for the attack or release stage (whichever you end up using) to send a volt/oct signal to help it track with the oscillator. I've gotten envelope generators to make sub-harmonics this way, sans key-tracking since none of mine have CV over stage times. Only works for one note that way, but its cool to see even an ADSR doing it. You do have to really play with the stages though. Attack and decay didn't work at all, and neither did release, unless decay and sustain weren't set too high or too low. . . All that's to say, it may take some fiddling. :)
@@nickmarkham3743 I was able to get subharmonics! I patched a pulse into Ch1 with it set to trigger. And at certain attack/release levels I was getting nice subharmonics. Awesome!
That's awesome! Thanks for looking into this! ^^ I wonder how well it tracks, with or without help from volt/octane input. If it's as good as maths is, it should do well enough even without it. It's one thing to twist the knob and hear a subharmonic series. It's another to be able to play different notes and hear that interval follow along. If these envelopes don't ignore trigger pulses, you can run your input signal through a voltage controlled switch or vca or mute, triggered by the rising gate output so it completes a whole attack phase before a pulse can interrupt it. That may improve stability as well. Not sure.
@@nickmarkham3743 Well I had an external oscillator plugged into the trigger input, so it tracks just as well as the oscillator at specific harmonic sweet spots. I just double checked it and yep, its all good :) Great tip, it will have to go into my next Qarv video!
Know this is advanced stuff .. but if you could have ended each function demonstration with some examples 'real world scenarios as to application', would be a great help to those of us still learning, and a more rounded intro to the module, aswell sound theory in general.
Fair point, I should talk more about the application of certain things in a musical sense more, especially in this video. I was trying to do more of a comparison to Maths for this video. In regards to the sound theory in general, if you look in my playlists, I did a little 3 part series of a whole overview of modular synthesis, maybe that can help?
@@gammakeraulophon Not a problem at all, happy to help explain anything. If you can, I would recommend getting any kind of oscilloscope, they can really help wrap your head around what is going on especially with CV things.
@@RobotsAreRed that’s actually why I ask. Because the dusg and rampage (I assume this module is inspired by the first) has quite some interaction between the two sides when one of them changes from rise to fall and vice versa.
More of the same. Not good enough. It's so imprecise. The attack and release controls are so imprecise it's impossible to ever recall the song and get similar phase relationships. I'm tired of modules like this, it's beneath my standards. The most amazing sounding stuff comes from perfectionistic precision applied to deeper mathematical discovery and harmonic innovation, not from a guy who looks cool tweaking a knob.
That's a strange comment. What do you mean? You do have precise voltage control of attack and release using other modules. It sounds very much like this module is perhaps a little too complicated/advanced for your understanding.
I was looking for this module and found your video. Good, clear and concise explanation, thanks!
Fantastic video. The routing diagrams are quite helpful. Top notch!
There is also a pdf download in the description :)
Found you on modwiggler, and I'd just like to thank you for your work 👌🏻 I was in the market for a 281t and came across the Qarv, and your excellent manual and this video have totally convinced me to go with this module. Cheers from Aberdeen 😊
Hey I was also gonna get the 281t but some kind folks on Reddit put me on to the qarv instead! Pretty excited for it to arrive
Thanks. Been waiting for this!
Hope it answers all your questions! And if you still have any, I can hopefully answer them.
Right on time. I think I’m going to get one of these.
the last time stamp has a typo! it should be 32:47
Ooops, thank you for catching that! All fixed.
Great video. So that I'm clear, the cv for the VCA comes only from the AR envelope, correct? I'm trying to compare Quadrax+Quad VCA to the QARV and trying to wrap my head around what's different VCA-wise. The difference envelope-wise is easy. Just need a little help comparing the VCA aspects of the two. Thanks.
So the VCA input is for your audio (or cv) source, then the AR is applied to the CV for the vca. So you can externally patch your own CV for the VCAs if you want as well just by patching into the input of a channel and turning A and R all the way CCW. Hope that helps
@@RobotsAreRed Thanks!
Excellent video. Thank you so much for the information! I have a small case with Quad VCA and Maths so do you think this could replace both?
Yeah I think it definitely could!
@@RobotsAreRed going to put you on the spot here. After using QARV, do you still think Maths is the ultimate utility or has the torch been passed to QARV?
@@aaronn7576 Haha, honestly I think Qarv surpasses Maths for most things. I'm keeping Maths around for the gated cycle function along with if I needed some OR logic. So yeah I think the torch may be passing to Qarv as the ultimate!
Thanks for the in depth tutorial. With the left side 5v function, does it mean that it will output no more than 5v no matter what I'm feeding through it? For e.g if I have a 12v module that I want to modulate a non eurorack piece of gear with (which is not supposed to receive more than 5v) does routing it through the QARV's vca attenuate it?
That's a good question. I believe channel 1 maxes out at 5v, but obviously channel 4 will give you up to 10v. But now I want to double check on channel 1. I will report back.
Okay I double checked and all channels can receive up to 10v but it maxes out at that, so you are good up to that voltage.
@@RobotsAreRed great thanks for checking.
Hi Robots Are Red. ^^ I have a question for you or anyone who owns this module. There's a subharmonics trick you can do with maths. Send a saw/pulse wave into the trig input and use the attack or release (not both) to create subharmonics. Its almost done in this video but it stops after only one sub-octave and the full range isn't shown. (attack and release are tweaked, making it appear not to work. ) My question is, If you just turn up the attack control (maybe with the shape control set to exponential) does it produce a subharmonic series?
Thats a very good question. I'll mess with this today and report back!
@@RobotsAreRed Looking forward to hearing about the results! Some things I learned tat may be helpful.
I'm told it needs an envelope/function generator that doesn't re-trigger until it's cycle is complete. (I learned this just this evening) This is necessary for keyboard tracking using just the oscillator as a trigger, and apparently its why maths works so well and why you can use its attack or release stage to control the pitch of your sub-harmonic tone.
But If you don't have that, it looks like you just need an envelope that has an attack or release phase that isn't interrupted by trigger signals, and CV inputs for the attack or release stage (whichever you end up using) to send a volt/oct signal to help it track with the oscillator. I've gotten envelope generators to make sub-harmonics this way, sans key-tracking since none of mine have CV over stage times. Only works for one note that way, but its cool to see even an ADSR doing it. You do have to really play with the stages though. Attack and decay didn't work at all, and neither did release, unless decay and sustain weren't set too high or too low. . . All that's to say, it may take some fiddling. :)
@@nickmarkham3743 I was able to get subharmonics! I patched a pulse into Ch1 with it set to trigger. And at certain attack/release levels I was getting nice subharmonics. Awesome!
That's awesome! Thanks for looking into this! ^^ I wonder how well it tracks, with or without help from volt/octane input. If it's as good as maths is, it should do well enough even without it.
It's one thing to twist the knob and hear a subharmonic series. It's another to be able to play different notes and hear that interval follow along.
If these envelopes don't ignore trigger pulses, you can run your input signal through a voltage controlled switch or vca or mute, triggered by the rising gate output so it completes a whole attack phase before a pulse can interrupt it. That may improve stability as well. Not sure.
@@nickmarkham3743 Well I had an external oscillator plugged into the trigger input, so it tracks just as well as the oscillator at specific harmonic sweet spots. I just double checked it and yep, its all good :) Great tip, it will have to go into my next Qarv video!
Know this is advanced stuff .. but if you could have ended each function demonstration with some examples 'real world scenarios as to application', would be a great help to those of us still learning, and a more rounded intro to the module, aswell sound theory in general.
Fair point, I should talk more about the application of certain things in a musical sense more, especially in this video. I was trying to do more of a comparison to Maths for this video. In regards to the sound theory in general, if you look in my playlists, I did a little 3 part series of a whole overview of modular synthesis, maybe that can help?
@RobotsAreRed
Hey thankyou.. very nice reply. I'm a slow learner with this stuff.. shall check out those vids of yours.. thanks 🙂
@@gammakeraulophon Not a problem at all, happy to help explain anything. If you can, I would recommend getting any kind of oscilloscope, they can really help wrap your head around what is going on especially with CV things.
How’s the performance when multiple channels are running at the same time? Do they influence each other at all?
It's all analog, so no issues there
@@RobotsAreRed that’s actually why I ask. Because the dusg and rampage (I assume this module is inspired by the first) has quite some interaction between the two sides when one of them changes from rise to fall and vice versa.
@@mymodularjourney Oh interesting! Nope I have noticed zero issues w/ Qarv on that.
More of the same. Not good enough. It's so imprecise. The attack and release controls are so imprecise it's impossible to ever recall the song and get similar phase relationships. I'm tired of modules like this, it's beneath my standards. The most amazing sounding stuff comes from perfectionistic precision applied to deeper mathematical discovery and harmonic innovation, not from a guy who looks cool tweaking a knob.
What?
I wanna hear your music
That's a strange comment. What do you mean? You do have precise voltage control of attack and release using other modules. It sounds very much like this module is perhaps a little too complicated/advanced for your understanding.