Originally Posted by wsippel
It's really not that simple. There's probably a piece of logic that takes one 854x480 video stream and two audio channels, encodes everything and gives it to the wireless adapter. I don't think that encoder has any direct connection to the CPU, so it wouldn't be possible to feed it with additional data in the first place. If Nintendo wants to support two or more pads, they'd need two or more encoders, and a DSP outputting one stereo pair per encoder (or switch to mono if there's more than one pad, but as soon as they'd exceed two pads, the other pads would be either silent or Nintendo would need a different DSP). It would increase the complexity quite a bit, and would be very rarely used. Maybe they'll add a second one, but I certainly wouldn't expect four encoders.
I see, but with the expected components involved in the streaming process to the DRC, even one "classical" video encoder/dsp with the anticipated number of channels/streams supported could allow the use of 2 DRC, with a bit of stretching and asymmetrical allocating of sounds here and there. Let's hope the future dev kits will see a change for the better in this department (more to come about the DRC situation later, this is why i'm asking you these questions, to understand the info i've got that some have guessed here and there).