sequencing CV

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Is it possible to use CC tracks to output CV via A1 module? I’m trying to find a way in my workflow to output somehow CV values that are not quantized to notes. Are there any options for outputting CV curves?

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@koooch sorry, currently my SEQ v4+ is in disarray because of a rearrangement of my main Japsers rack, so i cannot test at the moment - but have you tried configuring a track parameter layer to CC or PitchWheel instead of notes? This might result in a higher resolution when outputting that layer via CV to your eurorack A1 module.

Best regards,
Peter

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I tried all different CC numbers, Pitch instead of Note on the parameter layer etc with the same result - no output on the A1 module. It only changes the voltage on the A1 outs when track type set to notes and parameter set to note.

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koooch just looked in Thorsten’s respective code (seq_cv.c, if you want to look) - Andy is right, CC should work with the given CC numbers statically mapped to the respective AOUT ports.

But i also found that pitchbend events should work and they would probably provide you with a higher CV resolution - here’s the code:

else if (package.event == PitchBend)
{
 int aout_chn_note;

 if (package.chn <= Chn8)
 {
    aout_chn_note = package.chn + 8*cv_port;
 }
 else if( package.chn <= Chn12 )
 {
    aout_chn_note = ((package.chn & 3) << 1) + 8*cv_port;
 }
 else { // Chn <= 15
    aout_chn_note = ((package.chn & 3) << 1) + 1 + 8*cv_port;
 }

 int pitch = ((package.evnt1 & 0x7f) | (int)((package.evnt2 & 0x7f) << 7)) - 8192;
 if( pitch > -100 && pitch < 100 )
    pitch = 0;
 AOUT_PinPitchSet(aout_chn_note, pitch);
}

The respectively configured channel will map it to a different aout port (see code above), so best to experiment with that until you get some output. Note that pitch bend raw numbers between -100 and +100 are normalized back to pitch 0 (see lines just before the bottom command) - I think you should be able to get it work and might even be able to draw some waveforms using your MatriX.

Best regards,
Peter

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From the uCapps manual:

CC 1..8 (channel itself has no effect)
CC Number #16: CV Ouput #1, Gate #1 always set
CC Number #17: CV Ouput #2, Gate #2 always set
CC Number #18: CV Ouput #3, Gate #3 always set
CC Number #19: CV Ouput #4, Gate #4 always set
CC Number #20: CV Ouput #5, Gate #5 always set
CC Number #21: CV Ouput #6, Gate #6 always set
CC Number #22: CV Ouput #7, Gate #7 always set
CC Number #23: CV Ouput #8, Gate #8 always set
CC 9 CV Ouput #1, Gate #1 always set, CC Number ignored
CC 10 CV Ouput #2, Gate #2 always set, CC Number ignored
CC 11 CV Ouput #3, Gate #3 always set, CC Number ignored
CC 12 CV Ouput #4, Gate #4 always set, CC Number ignored
CC 13 CV Ouput #5, Gate #5 always set, CC Number ignored
CC 14 CV Ouput #6, Gate #6 always set, CC Number ignored
CC 15 CV Ouput #7, Gate #7 always set, CC Number ignored
CC 16 CV Ouput #8, Gate #8 always set, CC Number ignored

So CC track type with channels 9-16 should get what you want?

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latigid on Awesome, exactly what I needed! Thanks a lot guys.

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Damn, that opens so many new possibilities… follow-up question: is it somehow possible to use more than one A1 module with a single sequencer? 😅

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Cool, so it works like this? Awesome!
Yes, you can chain up to four A1 modules, then you have AOUT1, AOUT2, AOUT3 and AOUT4, then you define the channel 1-8 for each respective module as required, so in total you can work with up to 32 CV outputs.
Best,
Andy

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@koooch good that it works, sounds great!

Just had a look at the code again, as Andy said, SEQ v4+ can support up to 32 CV outputs. The above routine will allow a “cv_port” variable from 0…3, with each cv_port having eight individual CV outs.

Further looking at the pitchbend code above, it should indeed send out the pitchbend parameter layer depending on package.chn, which is the configured track channel to CV-out jack 1-8 of an AOUT module and use cv_port (0-3), which is the configured port of the track and send it to your AOUT module 0…3.

I know there are some users using more than one AOUT module, but i am not sure if they’ve ever really tried sending non-note CC or pitch-bend data to the CV ports after the first eight ports. I think it should work, but cannot 100% guarantee it, as it probably was not tried out before 🙂. You would probably be ok with two AOUT modules instead of four, as SEQ v4+ “only” has 16 different tracks that can be set to individual ports and channels. But then, on the other hand, you might want to leave some cables connected or load a different session, that uses a different set of AOUT modules - that’s why a power user might want to have a full set of 32 CV- and Gate-outs in the system 🙂.

Enjoy and have a good weekend!
Best regards,
Peter

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Hawkeye you would probably be ok with two AOUT modules instead of four, as SEQ v4+ “only” has 16 different tracks that can be set to individual ports and channels.

Well, SEQ has “only” 16 tracks, but I can even use a single track with multiple CC layers, each sending a different CV sequence on separate AOUT channel… so a single CC track with 16 parameter layers could easily use up all the channels from two A1 modules… 🤩