[da-anda]

@FernetMenta - is it possible atm to f.e. only mix audio information available in both (left/right) streams to the center speaker?

what do you mean? we have so separate streams per channel. in order to get this right for video we would need to analyze frequencies and decide what to mix upon this information.

yep, something like that. That's why I wrote probably add it once we have DSP etc. - but it's up to you.