[sdiy] Op amp notes

[Paul Higgins]

On Sunday, September 5, 2004, at 10:01 AM, Paul Perry wrote:

> ----- Original Message ----- > Why in the world would a VCA be found 
> in a
> digital mixer?

> So you don't have to digitise & undigitise the audio signal that you 
> are
> controlling.
> That is, assuming the "digital mixer" is a "digitally CONTROLLED 
> mixer",
> rather than a "mixer of digital signals".

Yeah, I'm talking about the analog I/O options on the digital eight-bus 
mixers and others.  They're not the only ones, either; lots of those 
boards are hybrid digital/analog, all the way up to the SSL price 
range.  Then there's the fader/mute automation packages from Mackie 
which also are full of SSM VCAs.  That's got to be one of the biggest 
markets for those ICs.

-PRH