Re: [FFADO-devel] [FFADO-user] FFADO 2.1.0 released

[Jonathan W. <jw...@ju...>]

Hi Ludovic

> Thanks a lot for all your great work.

It's a pleasure.

> I'm surprise by TC Electronic ImpactTwin (generic mixer only), could it'll
> be the same for other Konnekt devices ?

I'm not sure of the details about the TC interfaces.  

With regard to device mixers there are two possibilities:

 1) Standard control methods are used at the hardware level.  In this case
    we would need someone to construct a device-specific mixer along the
    lines of what's been done for the Saffire interfaces.  Such a mixer can
    label the controls and arrange them physically in a way which correlates
    well with the physical device.

 2) Vendor extensions are used to control the device's mixer.  In this case
    we more than likely don't have access to documentation about how to
    control the device.  Before a mixer can be written we would need to work
    out how to control it.

Since someone's said that the generic DICE mixer works with this TC
interface I suspect option 1 is applicable.  Note that "generic mixer"
here refers to a mixer module which uses information supplied by the device
to construct a mixer window.  Because this is fully automatic and relies
solely on the control enumerations provided by the device, the result is
sometimes not entirely intuitive to use (eg: control names may be confusing,
the GUI layout may not be logical, and so on).  Having said that, there are
some devices where the generic mixer does a fine job - it all comes down to
the information supplied by the interface.

Having said all that, if someone were to implement a device-specific mixer
for the TC interfaces we would welcome it with open arms.

Regards
  jonathan