MUFF WIGGLER Forum Index
 FAQ & Terms of UseFAQ & Terms Of Use   Wiggler RadioMW Radio   Muff Wiggler TwitterTwitter   Support the site @ PatreonPatreon 
 SearchSearch   RegisterSign up   Log inLog in 
WIGGLING 'LITE' IN GUEST MODE

PWM and the Vermona Mono Lancet
MUFF WIGGLER Forum Index -> General Gear  
Author PWM and the Vermona Mono Lancet
StudentsOfTheFuture
So - I don't have a ton of experience with PWM. I know what it's "supposed" to do in the abstract (though less how the various implementations matter) and I know I quite like it on my Evolvers, Mother 32, and MS-20. I have a couple oscillators that do it well in Euro.

And I have a Vermona Mono Lancet that doesn't do it natively.

I bought the Eurorack breakout for three reasons: 1.) I could get it for $100 and that seemed decent when I had a huge case. 2.) I read people on the internet say it was Good (and really, is there a better reason for anything?) and 3.) I wanted to get PWM for one of my favorite synths.

I've been messing around with the PWM functionality recently and it's interesting - it's not quite like what I expected, I can very easily get square waves to take on the qualities of the wave I'm PWMing with.

Is that typical? )And I'm usually just using much less interesting modulation?) Or does it have a kind of weird pulse width modulation implementation?

It occurred to me that this might be kind of similar to a rudimentary pulse code modulation, where if I swept the pulse width enough I could basically hack an analog sampler, but I'm not sure if that's actually what's happening?

Can anyone shed some light? I'm being super lazy but I can post some demos if the thing I'm talking about isn't obvious.
tymon
Sorry to hijack ur post . I came across ur thread looking for some info about the PW on the Lancets expansion. I just picked one of these up and i'm getting some weird behaviour with the PW.

My signal cuts out at about 1 o'clock. Does yours also do the same?

Heres a small clip:

https://soundcloud.com/tymonmusic/vermona-mono-lancet-pw/s-SRJF2

Can anyone else shed some light? My expansion has also been modified. Maybe that could be it? Seems a bt weird that it cuts out so early.
DiscoDevil
tymon wrote:
Sorry to hijack ur post . I came across ur thread looking for some info about the PW on the Lancets expansion. I just picked one of these up and i'm getting some weird behaviour with the PW.

My signal cuts out at about 1 o'clock. Does yours also do the same?

Heres a small clip:

https://soundcloud.com/tymonmusic/vermona-mono-lancet-pw/s-SRJF2

Can anyone else shed some light? My expansion has also been modified. Maybe that could be it? Seems a bt weird that it cuts out so early.


Try applying some CV to the PWM input and see if it does it.
tymon
DiscoDevil wrote:
tymon wrote:
Sorry to hijack ur post . I came across ur thread looking for some info about the PW on the Lancets expansion. I just picked one of these up and i'm getting some weird behaviour with the PW.

My signal cuts out at about 1 o'clock. Does yours also do the same?

Heres a small clip:

https://soundcloud.com/tymonmusic/vermona-mono-lancet-pw/s-SRJF2

Can anyone else shed some light? My expansion has also been modified. Maybe that could be it? Seems a bt weird that it cuts out so early.


Try applying some CV to the PWM input and see if it does it.


Yep it sure does. I'm actually getting some cool effects running an LFO to this as it goes through the PWM and then to silence. But i'm pretty sure it shouldn't be cutting out that early.
Blairio
Perhaps your lancet needs calibrated? A square wave with a duty cycle towards 0% or 100% should go silent, but not just beyond the midpoint of the control's travel - unless there us fairly hefty offset being introduced somewhere.
MOLOKO
The PMW is controllable via midi CC also. Should try setting that value before using the CV input. There’s also a max for live device by Skinnerbox

http://www.maxforlive.com/library/device/1015/sbx-mono-lancet-thang
tymon
Blairio wrote:
Perhaps your lancet needs calibrated? A square wave with a duty cycle towards 0% or 100% should go silent, but not just beyond the midpoint of the control's travel - unless there us fairly hefty offset being introduced somewhere.


Thats what I'm thinking too. Plus the PCB on the Modular Dock has been expanded with LFO, EG, Noise and CVF Out on an extra 4HP panel.
tymon
MOLOKO wrote:
The PMW is controllable via midi CC also. Should try setting that value before using the CV input. There’s also a max for live device by Skinnerbox

http://www.maxforlive.com/library/device/1015/sbx-mono-lancet-thang


Rad! Just checked the manual. Missed that before. I'll try that when I'm back in the studio. Thanks for the M4L device too w00t
DiscoDevil
MOLOKO wrote:
The PMW is controllable via midi CC also. Should try setting that value before using the CV input. There’s also a max for live device by Skinnerbox

http://www.maxforlive.com/library/device/1015/sbx-mono-lancet-thang


Yeah, this is kind of what I was getting at. If someone else had used MIDI perhaps to set a value on it prior, now the CV could have a limited range.

I had some similar issues with my Lancet and Mod dock. It seemed like I could get it to do similar things by combining midi CC and CV. The CV range would change as the Lancet seemed to "remember" where it was set via CC before. My two Lancets also had different characteristics in the filter resonance so I assume there are ways to calibrate it either via pots inside or through software.
tymon
DiscoDevil wrote:
MOLOKO wrote:
The PMW is controllable via midi CC also. Should try setting that value before using the CV input. There’s also a max for live device by Skinnerbox

http://www.maxforlive.com/library/device/1015/sbx-mono-lancet-thang


Yeah, this is kind of what I was getting at. If someone else had used MIDI perhaps to set a value on it prior, now the CV could have a limited range.

I had some similar issues with my Lancet and Mod dock. It seemed like I could get it to do similar things by combining midi CC and CV. The CV range would change as the Lancet seemed to "remember" where it was set via CC before. My two Lancets also had different characteristics in the filter resonance so I assume there are ways to calibrate it either via pots inside or through software.


Same here! I had a Lancet a few years back and i remember the filter being different on that one. I'm getting quite a bit of volume drop when I have the resonance at 100%.
tymon
Well I got a reply from Vermona and they said that this is normal behavior with the PWM. Also the the filter behaving differently as they’ve changed it over the years. I haven’t had a chance to adjust the PWM via midi yet. Curious if it will make a difference.
MUFF WIGGLER Forum Index -> General Gear  
Page 1 of 1
Powered by phpBB © phpBB Group