@mudgel - yes, I understood what you meant. Thanks. It would be crazy if it did anything to the sound without asking. But apparently digital DAWs do not escape all issues analog mixers have. So summing a large number of tracks still adds noise, even in digital. Could be they added some clever algorithm to reduce that - not inconcievable.
Anyway, I'm sure if they had, then they would have trumpeted it from the rooftops.

jpetersen
@mudgel - yes, I understood what you meant. Thanks. It would be crazy if it did anything to the sound without asking. But apparently digital DAWs do not escape all issues analog mixers have. So summing a large number of tracks still adds noise, even in digital. Could be they added some clever algorithm to reduce that - not inconcievable.
Anyway, I'm sure if they had, then they would have trumpeted it from the rooftops.

The noise is what you recorded from your interface. ie record 1000 track of nothing but preamp and you have preamp noise 1000 louder.