A137 Wave Multiplier

timmah · Post by **timmah** » Sat May 09, 2009 10:03 am

astroschnautzer wrote:yo thanks for the tip, I just wont be getting that on my allready audiofied basslines...

take a copy of your bassline and whack it through some distortion or guitar amp simulator, high pass it and mix it in a low level and there you have a bassline that you can hear at low volumes.

astroschnautzer · Post by **astroschnautzer** » Sat May 09, 2009 10:31 am

oh yes, I will, thanks again! I feel actually a little stupid not to have come up with this myself, it is so obvious. sines get mad through a qmmg although it is a filter and filters cut of frequencies and a sine has nothing to cut, don`t believe the hype

Kent · Post by **Kent** » Sat May 09, 2009 11:19 am

Back when I wuz mixin' hit rekkids for the kidz; I used to run bass guitars, through the Little Labs PCP Distro (a re-amping device), into a battery powered Marshall or my current Ibanez xstr amp. This would then be mixed in the bass in order to provide what I mentioned previously. Works like a charm. Just use a shitty little amp. You aren't looking for low-end anymore.

Suburban Bather · Post by **Suburban Bather** » Sat May 09, 2009 12:21 pm

timmah wrote:
astroschnautzer wrote:yo thanks for the tip, I just wont be getting that on my allready audiofied basslines...
take a copy of your bassline and whack it through some distortion or guitar amp simulator, high pass it and mix it in a low level and there you have a bassline that you can hear at low volumes.

Yes!

My man timmah has it going on. When I need deep, brown note, diarrhea inducing bass, I mix a either a sine or triangle wave with a saw or square wave. Your sine/triangle should be the dominator with the saw or square just present enough to be able to hear it. Or, you send your sine subs to either a mixer channel or dirt box that you can apply some mild overdrive to. Don't ever forget that subsonic frequencies take up a whole lot of room in your mix. Use them wisely

Edit: I almost forgot to mention that the STG Wave Folder is TITS!!!!!!!!!!!!!!!!!!! Got it in my 5U system.

knobgoblin · Post by **knobgoblin** » Sat May 09, 2009 2:00 pm

the a137 is one of my favorite modules, hands down. it makes tons of interesting sounds. It is finicky and its a shame that the input gain isn't cv-able, but it has definitely earned its place in my set-up. One place where it really shines is on more complex sounds. Mix a couple vco's before sending it into the 137 and play with the mix of them. You can get great metalic grinding noises or really pretty phasey drones.

Its also great for bass patches. In this patch its inserted between a highpass and a low pass and then mixed with the sine from one of the vco's.

http://dl.getdropbox.com/u/518773/M15%2 ... xample.mp3

dougcl · Post by **dougcl** » Sat May 09, 2009 2:54 pm

knobgoblin wrote: http://dl.getdropbox.com/u/518773/M15%2 ... xample.mp3

nice one

Jari Jokinen · Post by **Jari Jokinen** » Sun May 10, 2009 2:21 am

knobgoblin wrote:...its a shame that the input gain isn't cv-able...

I can't check, but that would be nearly the same, as CV of Multiples parameter.

SingleCell · Post by **SingleCell** » Sun May 10, 2009 4:19 am

Jari, that's correct. This from the user manual:

Level (knob) / In (socket)
This is the audio input of the module (e.g. triangle output
from a VCO) and the corresponding level control. Control
5 has the same effect as the Multiples parameter as
it is connected in series with the VCA that controls the
Multiples.

richard · Post by **richard** » Sun May 10, 2009 4:50 am

SingleCell wrote:Jari, that's correct. This from the user manual:

maybe, but modulating the multiples it doesn't sound at all the same as sweeping the level control.

Richard

SingleCell · Post by **SingleCell** » Sun May 10, 2009 7:49 am

Sounds the same to my ears. But maybe they are broken.

felix · Post by **felix** » Sun May 10, 2009 9:16 pm

It maybe a little different depending on the symmetry and harmonics settings.

The key to the wavemultiplier is the input+multiples+folding level, probably the folding level as the most important, as it determines the +/- voltage level at which folding occurs.

The symmetry and harmonics control the type of shaping and the folding level and input/multiples controls at what level that shaping occurs.

knobgoblin · Post by **knobgoblin** » Mon May 11, 2009 6:31 pm

sounds pretty different to my ears as well

wetterberg · Post by **wetterberg** » Mon May 11, 2009 6:35 pm

the thing about the multiples parameter is that it ADDS to the input level, meaning you can get some really radical sound changes if you attenuate the signal before the input AND manipulate the multiples at the same time - that really does seem to provide the most range.

knobgoblin · Post by **knobgoblin** » Mon May 11, 2009 8:10 pm

i tend to leave my input for this module in the 10 o'clock range as a starting point as I find it gives me most variety.

slaughterhousesam · Post by **slaughterhousesam** » Fri May 15, 2009 4:36 pm

Hi guys,

I had some frustrating times with this module, but eventually found the settings that pass the original signal more or less exactly (on a message from dieter buried in the doepfer list). On mine it passes the signal inverted, but nonetheless pretty much unaffected.

I find this a much easier point to start experimentation from, as you can appreciate what the individual controls are doing a bit better, and avoid falling down the silent hole too much

The suprising thing is that the zero settings often dont relate to a stage being "passive". I do wish this was clearer in the manual, but there you go

Anyway, here they are. I have actually marked these onto the panel of the module as a reference. Marks refer to the segment marks around the range of the knobs.

Multiples....Fully to the left (0 marks)
Folding level....fully to the left (0 marks)
Symmetry...3.5 marks from fully left
Harmonics.... 2 marks from fully left
Level....2 marks from fully left.

Hope that helps some of the people who find this module a bit badly behaved, it certainly helped me.

I have just got the stg folder from AH, and i have to say it does sound great, especially when audio-modulating the gain amount. In my opinion, you cant really have too many wave folders :p

richard · Post by **richard** » Fri May 15, 2009 8:14 pm

thanks!

and yes that really should be in the manual, or marked on the module - the first two I got easily enough, but the last 3 not really!

R

richard · Post by **richard** » Thu Jun 04, 2009 11:59 pm

I need to point out that at least on my A-137 these settings don't actually work.

Multiples....Fully to the left (0 marks)
Folding level....fully to the left (0 marks)
Symmetry...3.5 marks from fully left
Harmonics.... 2 marks from fully left
Level....2 marks from fully left.

If I input a sine form an m15 the signal is noticebly folded even at the lowest level - I can't find any useful default setting. The only wayI can find to try to get a sine through it unaffected is to attenuate the signal level so low that the signal disappears

Richard

felix · Post by **felix** » Fri Jun 05, 2009 1:51 pm

Hmm, I wonder if there's a significant variance from unit to unit.

I had long since sold my M15 before I got the 137, so I can't do the same comparison, but I do know that I need to have Harmonics at 0 (plus additional settings on the other controls) to have an unaffected waveform.

Incidentally, I find myself always wanting to modulate some amount of folding and not modulate between un-affected and folded. Maybe that's why I like the 137 so much...I'm never really trying to have it not fold the input.

adam s · Post by **adam s** » Fri Jun 05, 2009 3:20 pm

I'm late to this discussion, but wanted to chime in that for a long time my only VCOs were a blacet vco and AS-RS110 filter in self-oscillation. I ran the RS110 into the A137 on almost every patch, and I will forever love that module for its wide range of sounds when controlled in a very small range. I'll usually find the sweet spot and drive the multiples input with the attenuator at 1 or 2 marks.

Lately I've been using it to process control voltages. Driving the tyme sefari's loop points with a wave-multed triangle lfo is just sick... unpredictable, yet not random results.

wetterberg · Post by **wetterberg** » Fri Jun 05, 2009 4:49 pm

my M15 works very well through the a-137-1, if that's useful info in any way... and yes, it'll do insane things to LFOs... madness.

slaughterhousesam · Post by **slaughterhousesam** » Sat Jun 06, 2009 5:46 am

Hmmm...interesting....like I say I got those numbers from the doepfer list, and there seemed to be a mutual "ah!" in response that suggested it worked for a few peeps. maybe there have been revisions over time to the model?

before i found those, trying to get some predicatability in its response was like trying to pick a combination lock :p

either way, its a fun module

richard · Post by **richard** » Mon Jun 08, 2009 10:00 am

I just tried the a137 as a CV processor on an LFO using two cross modulated VCOs going into the CV inputs (because they happened to be around)

fuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuck! gibbering monkey uggawugga music!

if I think about it as an audio modulated CV processor its a heck of a lot more exciting to me than as a CV controlled audio processor

who needs a wogglebug? this thing is mental!

thanks wetterberg!

Richard

mark_snipz · Post by **mark_snipz** » Mon Jun 08, 2009 5:23 pm

I've cross modulated my MFB LFO, fed that thru the A137 then fed that into the CV sine on my As VCO, then into a ring mod with another straight sine from my MFB Osc2. Then stuck all 4 LFO's from a A143 into the CV's of the A137.

I like this modular game

wetterberg · Post by **wetterberg** » Mon Jun 08, 2009 5:26 pm

@mark, @richard:

audio or gtfo, bitches

dougcl · Post by **dougcl** » Mon Jun 08, 2009 5:29 pm

mark_snipz wrote:I've cross modulated my MFB LFO, fed that thru the A137 then fed that into the CV sine on my As VCO, then into a ring mod with another straight sine from my MFB Osc2. Then stuck all 4 LFO's from a A143 into the CV's of the A137.

I like this modular game

A-143-3 is another great underrated module.

MOD WIGGLER

MOD WIGGLER

A137 Wave Multiplier