#1

Has anyone tried any of the iOS apps that generate cv from the headphone output?

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#2

I had limited success with an LFO app a few years ago (http://brutelfo.com). The output voltage is weak; documentation says +/- 0.5 volts. I think I remember amplifying it using a Moog CP-251’s powered pedal input or something like that. IIRC, I found it to be a useful source of noise and random voltage, but ultimately not really worth the trouble for all the cabling required, having to amplify it and all.

For me, file under: gateway drug / teaser for eventually getting into modular :wink:

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#3

I would suggest working with MIDI in iOS and then converting the signals to CV using MIDI-to-CV device. You would get the best from both worlds and use every machine for what they do best.

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#4

No quite what you’re looking for but this video just got posted using a mi.1e http://quicco.co.jp/mi1e/

#5

Spotted this & thought it may be of interest:

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#6

There is always talk of needing a DC coupled output for CV control. Im thinking the headphone output on iPhone/ipad can not properly do cv. iPad could be so cool for music if apple opened it up a little. It could be a sequencing/recording/sound generation power house if it didn’t need all the dongles and work arounds to get midi and audio in/out.

#7

I’m trying it out and the cv level is quite low but not useless at all

I’ve run it into the attenuverters on Maths which helps a little

Subtle but not worthless

#8

You could always use an amplifier module to increase the CV level from the device.
One of many:
http://www.doepfer.de/a1833.htm

#9

Does it work on two signals at the same time?

#10

The Doepfer one is single channel so unless you mix the two signals together first (which I’m kind of guessing isn’t what you want to do) then, no.

Addac make a dual channel amplifier module though.
http://www.addacsystem.com/product/addac200-series/addac202

#11

Trigger Box is basic but fun if you are looking for some euclidean trigger action

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#12

Will check it out , thanks