[LAD] sliders/fans

Fons Adriaensen fons at linuxaudio.org
Thu Nov 24 23:20:09 UTC 2011

On Thu, Nov 24, 2011 at 03:12:12PM -0800, Jeff Koftinoff wrote:
> On 2011-11-24, at 12:45 PM, Fons Adriaensen wrote:
> > Not always. Consider the case of 'VCA' groups for faders. That
> > is: you have a slider that controls the gain of a group of 
> > channels (without those being mixed). The effective channel
> > gain (in dB) is the sum of the per channel fader value and
> > the one from the group fader. The model sees only this sum.
> This is the mistake. In Model View Controller, your VCA group
> fader would have an associated value in the model.  The view
> edits this. The controller calculates the resultant effective
> channel gains.

Not always. Consider the case of a mixer application that has
full OSC remote control. The VCA fader could be an implementation
detail of the remote interface, unknown to the model.



Vor uns liegt ein weites Tal, die Sonne scheint - ein Glitzerstrahl.

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