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How to make touchosc to react to sound preset changes of a virtual instrument?

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  • How to make touchosc to react to sound preset changes of a virtual instrument?


    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. 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,

  • #2
    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?



    • #3
      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.