View Full Version : How to make touchosc to react to sound preset changes of a virtual instrument?

01-28-2011, 01:15 PM

My question concerns the controlling of virtual instrument on Ableton Live 8 (Mac) with the osculator + touchosc on ipad combination.

The virtual instrument is Korg MS-20 audio unit (http://korg.com/Product.aspx?pd=588). I have created a touchosc template mimicking the MS-20 interface. With osculator, I have mapped the control knobs on the ipad to those on the MS-20 audio unit.

Two-way communication works perfectly. However, when I switch between sound presets on the instrument, the knobs on ipad are left to the positions of the sound I was previously working on, while the knobs on the instrument obviously reflect the positions of the new sound/preset. Only way that
I am able to make the ipad knobs to reflect the new sound is to click on each knob on the instrument with a mouse.

Is it possible to send the knob positions of the new sound to touchosc when the new sound is selected on the instrument?

Best Regards,

01-29-2011, 03:03 PM
Hi Jarkki,

In the situation where presets are handled by the instrument itself, it is up to the 'instrument' to send the values update. You said that values where updated when a knob was modified on the user interface, and that bi-directional communication was working, so I think there is a problem with the MS-20 plugin.

I see there is a Config button, can you see something that would enable the update of values?


01-29-2011, 05:10 PM
Thank you for your answer!

You were right about this being a problem caused by the MS-20. On the config page of the MS-20, there is enable/disable button for program change. However, in the midi implementation chart it says that MS-20 is able to recognize, but not to transmit program change data. I guess I have to ask Korg to add this feature in a future update.