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Hi noodle_hut,
I appreciate your participation on this journey of discovery but honestly I don't understand your logic or advice on this subject.
I have explained more than once that the voltages from the sequencer are precise voltages. If I play the sequence into the GVCO it plays the sequence correctly. So the voltages produce the correct notes, ( with no quantizer, either internal or external ) I am using a Peterson Strobe tuner to check.

The sequence is not "quantized” the output produces exact voltages. So saying don't quantize an already quantized source is kinda irrelevant in this instance as I’m not.

I don’t need to measure the voltages as I already know they produce the right notes ( the GVCO has a handy built in tuner as well and shows the note and the cents its sharp or flat. All unquantized notes are withing +/- 2 cents ) and I have previously stated that I have patched in an external quantizer and it doesn’t impact the sequence ( because it doesn’t need to ).

I also don’t understand why I need an analog voltage source over a digital one. 1V is 1V regardless of where it is derived from and yes I already checked they are precise voltages, I think I said that more than once already.

Why am I doing this?
Well, I don’t actually need to turn on the internal quantizer in this instance but that’s not the point. I should be able to and it should work correctly. The fact that it doesn’t means there is something wrong with the module, its firmware or the original coding. I’m trying to find out if the issue is just my module or they are all like that.
Also in my test it’s really obvious there is a problem with the chromatic scale because I know what a chromatic scale sounds like. I wouldn’t use the quantizer in chromatic mode as it’s unnecessary for me to do so. But would I recognise, by ear, what notes should be produced if I set it to Aeolian? No I wouldn’t. I would need to trust the quantizer. Right now I don’t. So that’s my reasoning for asking for help.

Thanks again for your thought on this.

Thanks for your input e_v_k.

So I tried a new experiment today and created a 5 step sequence that consists of C D E G A ( pentatonic major ).
Without the quantizer enabled I get that exact sequence played back. If I turn on the internal quantizer and set it to pentatonic major I get D D E G A. So the first note is now a whole tone sharp. If I change to quantizer to chromatic I get C Sharp as the first note followed by all the correct notes.
If I go back to me original sequence and play it back with the quantizer on and set to chromatic I can get the first note to play C by detuning the "tune" knob by about 48 cents but all the other notes that follow are now out of tune.

I'm still sctarching my head on this one.
What I really need is someone else that has a GVCO to try the same experiments and see what results they get.

EDITED Today, 19:09

Can I have your broken oscillator?
-- noodle_hut

Sure you can.
Where do you live? I will pop it round shortly.

I really appreciate the vast esxplanation on how a quantizer works and I understand the principal. But I really think the point of what I'm saying is being missed. The Oscillator will play the scale perfectly without the internal quantizer being switched on.
So the voltages coming from the sequencer are precise enough to produce the correct pitch. Both the sequencer and the oscillator are digital as well. As I said in my previous post, I have tried putting an external quantizer in the signal path and it has zero impact. All the notes in the scale are played correctly. Only when I turn on the oscillators built in quantizser do I get the problem and its only the first not in the scale that is a semitone sharp. So adding offsets will just put everything else out. I know because I have tried it already. The only explanation I can think of is that that the internal quantizer is in some way faulty or incorrectly programmed.

EDITED Saturday November 22, 18:19

Quantizing already quantized notes leads to a dark portal of mysteries and small voltage offsets.
Add a small +- voltage offset to your input cv and your half step off will be fixed, or migrate.
Depends on how your quantizer rounds up or down when the input is close to a note.

The notes from the sequencer are not already quantized. Its a digital sequencer so the voltages are just precise.
So the fact that just the first note is getting shifted up a semi tone really makes little sense to me.
But I don't build or design modules so thats not much of a surprise.

I have repeated the experiment but instead of using the built in quantizer I used an external one and the sequence plays as expected.
So it does appear to point to some issue with the internal quantizer to me.

EDITED Saturday November 22, 11:28

If you own a GVCO you might be able to help.

So, if I feed a sequence into the volt/octave input that consists of the “C” major scale ie: C D E F G A B C
it will play that back just fine. However if I turn on the VCO’s built in quantiser, set to chromatic, it plays back C sharp D E F G A B C.
I have calibrated the VCO so it’s not that. I’m completely baffled as to why the first C in the scale is sharp.
Is my module faulty or are they all like this?

EDITED Today, 21:15

Sequencer section of the Moog is great and inspirational but the synth part of it is so limited that all you can create is a handful of stereotypical moog sounds. I bought one and sent it back after about a week. the Behringer version its so much cheaper and sounds the same so if I decided to revisit the idea I would just buy one of those personally.
-- Bigbadger65

Are you talking about a Behringer version of the Subharmonicon?
-- wiggler55550

Nope, the Moog Version. I never had the Behringer version and said I would get one if I ever decided to revisit the idea of a Subharmonicon". Sorry if my post was difficult to understand or unclear. I can see how it could be misinterprited.

wiggler55550PM Posted: Friday November 07, 23:18 Quote
I never heard about a 'Behringer Subharmonicon', that's why I asked.

Behringer SPICE. Its like £189 and does exactly what the Subharmonicon does. Its ugly by comparison but hey there you go.

EDITED Nov 10th, 16:22

Sequencer section is great and inspirational but the synth part of it is so limited that all you can create is a handful of stereotypical moog sounds. I bought one and sent it back after about a week. the Behringer version its so much cheaper and sounds the same so if I decided to revisit the idea I would just buy one of those personally.
-- Bigbadger65

Are you talking about a Behringer version of the Subharmonicon?
-- wiggler55550

Nope, the Moog Version. I never had the Behringer version and said I would get one if I ever decided to revisit the idea of a Subharmonicon". Sorry if my post was difficult to understand or unclear. I can see how it could be misinterprited.

EDITED Nov 7th, 19:14

Sequencer section of the Moog is great and inspirational but the synth part of it is so limited that all you can create is a handful of stereotypical moog sounds. I bought one and sent it back after about a week. the Behringer version its so much cheaper and sounds the same so if I decided to revisit the idea I would just buy one of those personally.
-- Bigbadger65

Are you talking about a Behringer version of the Subharmonicon?
-- wiggler55550

Nope, the Moog Version. I never had the Behringer version and said I would get one if I ever decided to revisit the idea of a Subharmonicon". Sorry if my post was difficult to understand or unclear. I can see how it could be misinterprited.

EDITED Nov 7th, 19:14

Personally, I wouldn't waste case space with passive multiples.
You can use stacking cables to achieve the same thing and save case real estate.

You could consider adding an 8HP Ornament and Crime module. That would give access to a whole lot of possibilities including sequencers and LFO’s or envelopes and quantisers etc etc. Great for a small case system.

Have fun !

EDITED Jan 30th, 17:15

Thats fantastic. Thank you.

Does anyone have a copy of the malekko voltage block firmware 1.6 ?
I can't find it anywhere on line .

Thanks

RE the Pams suggestion..
All cool ideas. I have played about with quite a few of them already.
What I meant was, I can't work out how to achieve my specific idea with Pams.
I thought you where suggesting it could be done.

I have Pam's Pro Workout but I couldn't work out how to do what I'm suggesting with it.
The Oxi One sequencer is amazing and would totally do it but its way out the budget.
Malekko Voltage Block looks like it will do the job exactly.

Great suggestion !
Thanks all.

EDITED Aug 15th 2024, 14:59

Thanks for the suggestion.
That is exactly what I'm talking about but with more than three channels.

EDITED Aug 15th 2024, 11:52

Hi all, I need some help please.
I want to sequence my BIA by feeding it sets of upto 8 preset cv's per trigger.
So basically set one would create a kick, set two a snare set 3 hats etc etc.
So I then need to be able to choose which preset cv's are output
on the beats of the bar. EG step 1 = Kick preset cv's, step 2 Hat cv's, step 3 Hat cv's, step 4 snare cv's.
So what I think I need is a sequencer that has eight lanes and is CV addressable. But I could be wrong.
I have tried finding such a module with no luck.
Any advice would be great as I'm still fairly new to all this.

EDITED Aug 15th 2024, 09:29