[QLab] Master Fader ? and a feature request

[Christopher Ashworth]

On Mar 16, 2007, at 10:53 AM, Leon Rothenberg wrote:
>
> Besides it's affect on level based plugins, it would make a
> difference depending on how summing for any given output is being
> implemented. If this math is being done with some sort of "zero gain
> summing" to avoid clipping within the AU,

Ah, sure.  I suppose I had assumed that the summing algorithm was,  
well, summing.  ;)

> If the matrix mixer audio unit is also an Apple invention

It is.

> Perhaps there is a white paper on it somewhere.

I will see what I can dig up.


As regards the point about adding DSP units into the chain, I still  
don't see how it affects things--you can't add an audio unit *in* to  
another audio unit, you can only attach them before or after each  
other.  So it seems that yes, we'd have to take that into account  
when designing how AUs might be added to the Sound Cue processing  
chain (whether or not the units could be added before the mixer,  
after the mixer, or both), but that it doesn't directly relate to how  
the Matrix Mixer unit itself is applying the master gain  
coefficient.  Or am I missing something else?

Cheers,
C