posted 31 October 2012 03:29            

I've finally been able to start to sit down with my Pacarana and start to learn it, I'm interpreting the burning sensation between my ears as pleasure :-)

My first question here, when combined with a DC coupled sound card like a Moto 828 mk3 or a Ultralite MK3 can Kyma be used to generate control voltages?

posted 31 October 2012 05:54            

In theory yes if you can find a truly DC coupled audio interface, but that will be hard. I doubt that the MOTU stuff is DC coupled all the way to the analogue output, but you can do a simple test.

Get a constant module and put !Value in the field. Instead of playing the sound go to the info menu and choose oscilloscope. Then measure the voltage (in mV) between pins 1 and 2 of the output XLR and see if it follows the Value slider. If it moves but then falls back to zero it's not DC coupled and won't work.

posted 31 October 2012 10:43            

If kyma would support more then 8 outputs i would use kyma for CV too ... then timing of the CV is sample accurate and the modulation possibility (FM etc.) are great ...

Have a nice day
Chris

posted 31 October 2012 10:48            

Using the Kyma Sound that Pete suggested (a Constant with !Value in the value field so you can adjust it), you could follow steps 1 & 2 of MOTU's instructions for measuring the voltage output:
http://www.motu.com/techsupport/technotes/testing-analog-outputs-for-control -voltage-compatibility

Then compare against the voltage range that the EuroRack expects to see for control voltages. You may need to attenuate the output to fall within the EuroRack's expected range.

posted 31 October 2012 23:03            

It works very well directly with my Motu interfaces connected to the pacarana.

But i usually use a TC Konnekt with Kyma. The Konnekt works through ADAT feed into Motu 828 or a Travelers as well ... The TC does not handle CV directly because it can not handle DC output.

Anyway there is an ADAT to CV output interface available from Expert Sleepers to put into an Euro Rack for your modular system. I did not check this yet because i already have several MOTUs and they all work very well.

I gave up the "output CV directly with Kyma" idea a while ago because with OSC i can use other software which is dedicated to this.
Of course other software involves latency... but for pitch/gates/triggers with KymaConnect and gigabit ethernet this is not really and issue.

just my 2 cent

Chris

p.s.: i did forget to mention that i have an old "modified" 828 which also handles DC inputs... I do not know if this is standard but there is a solution from the silent ways guys too... of course latency is involved...

posted 01 November 2012 16:56            

Thank you for all the responses!

I have been able to confirm that both the Ultralite MK3 and the 828 MK3 are able to output CV correctly.

I guess the next step is to start to learn how to use CV with Kyma, but as I'm still at the baby steps stage I don't yet know what questions to ask, I guess as I have yet to master the language.

My eventual desire, if it's possible, is to create systems in which both Kyma and the modular modulate each others output, and given the flexibility of the Kyma software the possibilities seem large.

I'll post back with questions and results as they arise.