Well, I am chastened because it turns out that I was wrong about the DSP being identical on the Storm card and on the 840av, so take that as a sign that I do not know what I am talking about half the time (as my wife would happily tell you).
However, it is certainly the case that the Control Panel (or was it Vu-meter? I forget, it was a long time ago) shows all DSPs as active in Photoshop in an 840av with a Storm card inside. So there would appear to be some sort of load balancing under ARTA (Apple Real Time Architecture) in effect, that is to say, for DSP-aware Photoshop filters. I am not sure how efficient it was, but I remember a technical paper from the engineers that I read years ago that explored the question of ARTA capabilities, so one could go a-googling for more info.
I also don't know about audio, except that there there were very few programs that were DSP-aware. Digitrax, maybe?
Another piece of evidence that supports the notion that more than one DSP could be used is the fact that more than one DSP was often present on these accelerators.... They must have popped two on the Storm card for a reason.
However, it is certainly the case that the Control Panel (or was it Vu-meter? I forget, it was a long time ago) shows all DSPs as active in Photoshop in an 840av with a Storm card inside. So there would appear to be some sort of load balancing under ARTA (Apple Real Time Architecture) in effect, that is to say, for DSP-aware Photoshop filters. I am not sure how efficient it was, but I remember a technical paper from the engineers that I read years ago that explored the question of ARTA capabilities, so one could go a-googling for more info.
I also don't know about audio, except that there there were very few programs that were DSP-aware. Digitrax, maybe?
Another piece of evidence that supports the notion that more than one DSP could be used is the fact that more than one DSP was often present on these accelerators.... They must have popped two on the Storm card for a reason.