Muff's Modules & More

pr0t0

Hi all on Muff
I'm trying to send CV and gate to my moog rogue with Silent Way trough the Multiface Headphone outs, which I heard is DC coupled. Here's what's cooking.

The cabling is a bit fiddly (provided Silent Way support is right):

TRS on my RME multiface headphone out
T to R on one TRS to Rogue's STrigger/VTrigger
R to R on another TRS to Rogue's CV In

that's what i've been told. Set up Silent way on Live as in the tutorials, but can't generate pitch, just a few pops with MIDI and calibration, guess the gate is working, but not the keyboard cv in.

any tips??

all the best
Rodrigo

os · Posted: Fri May 18, 2012 3:45 am Post subject:

As I always say in these situations, simplify things by not attempting to use the Voice Controller right away.

Use Silent Way DC. Route its output to your headphone outs. The two channels of the plug-in should now give you manual control over CV and gate.

By changing the Out level on the gate channel, you should be able to make the synth play.

By changing the Out level on the pitch channel, you should be able to change the synth's pitch if you manually trigger it (e.g. by holding down a key on the keyboard).

bil_g · Posted: Fri May 18, 2012 11:19 pm Post subject:

Hmm, I didn't realize the Multiface I headphone outs are DC-coupled. It appears the II headphone outs are not(see here).

It might be easier to have the T to the R of the CV In(tip is usually channel one-Left...correct?). It'll make it easier with the default Silent Way routing. That is, if I am understanding your wiring correctly.

...and what Os said.

pr0t0 · Posted: Mon May 21, 2012 3:52 pm Post subject:

Hi guys, and thanks in advance.
I tried with DC, but still with no success. I'll try to explain what happens.

I cannot make the synth play by itself by changing DC output values, just pressing a Rogue Key I'm able to control it with a midi keyboard or hear the calibration with voice controller. Channel L with DC changes the pitch. Channel R does nothing, so I assume gate is not working.

In this scenario I'm connecting the T to R stereo cable in the CV in of Rogue. By changing cables on the moog or in the RME matrix, I get the same inversed. Pitch control on the Right channel of DC, nothing on left.

With Voice Controller, after calibration, i get about 2 octaves, but can't trigger the synth with Midi - I just hear it playing when pressing a Moog key.

Could be the cabling? the Ins on Rogue? or its the multiface that can't send proper DC?

hope this helps. thanks again.

os · Posted: Mon May 21, 2012 4:48 pm Post subject:

According to the Rogue service manual, it needs 3V minimum to trigger it. If you're only getting 2 octaves of calibration, that implies that your output voltage is about 2V - i.e. not enough to trigger the gate.

Ideally at this point you'd use a multimeter to measure the actual output voltage you're getting.

pr0t0 · Posted: Mon May 21, 2012 10:46 pm Post subject:

nice... if that's the case, is there ways to multiply this voltage? maybe some inside tweaking on the interface?

cheers

giorgio · Posted: Mon May 21, 2012 10:56 pm Post subject:

look up a voltage doubler cable

pr0t0 · Posted: Mon May 21, 2012 11:01 pm Post subject:

hum... is this voltage doubler possible for 1 TRS to 2 TRS cables?
any circuits or links?
thanks

os · Posted: Tue May 22, 2012 3:01 am Post subject:

Yes, it's possible, just treat each half of your lead as a regular lead.

http://www.muffwiggler.com/forum/viewtopic.php?t=14328

Simpler suggestion though - is there a volume knob on the headphone outputs?

pr0t0 · Posted: Tue May 22, 2012 9:47 am Post subject:

No, there's no volume on the headphone outs on the mUltiface I. For what I understood, that's one of the reasons the 1st multiface has this DC coupled out - the multiface II has a volume knob on it, and it's AC coupled. there's only digital volume in the RME matrix, default -6db, but I can get it to 0db.

I'm a total dumb when it comes to schematics and circuits, but I'll print this and take to someone to make it. Can you specify the right pieces to buy, diodes, etc?

For what I've got I have to make a half-wave rectifier http://www.play-hookey.com/ac_theory/ps_rectifiers.html and place it on... the tip? the ring? or both?

sorry for all these noob questions, I'm just trying to figure out a nice way of playling live with my moog and ableton, without many additional costs.

thanks again

EDIT - I turn the digital out to 0db, and now I get the moog to trigger properly with MIDI, calibrated with Voice COntroller and now I'm getting 4 octaves, which is all I need. So many thanks for your support, now it's time to buy silent way.

all the best for you wigglers!! it's a shiny day! grin

os · Posted: Tue May 22, 2012 10:10 am Post subject:

pr0t0 · Posted: Tue May 22, 2012 5:09 pm Post subject:

"paypal processing not available" on license manager.
any thoughts OS?
tks

os · Posted: Wed May 23, 2012 2:59 am Post subject:

Try here.

pr0t0 · Posted: Wed May 23, 2012 12:01 pm Post subject:

gone. thanks!

fiddling now, it came to a more specific question regarding live use... What's the best way of changing saved presets (i.e. sequences) on the fly?

should I use several instances of different step LFO/quantizer presets on a big instrument rack, changing the active one with midi?

other thing I wonder is the best way of controlling the step values... I have a 64 knob dopefer dhrebank, thinking about making it my sequencer/quantizer control station...

thoughts appreciated.

os · Posted: Wed May 23, 2012 2:53 pm Post subject:

pr0t0 · Posted: Wed May 23, 2012 4:37 pm Post subject:

os · Posted: Thu May 24, 2012 2:56 am Post subject: