You mean audio through displayport or DVI cable? The first one yes, the second i'm not sure since the display has DVI-D dual link port not DVI-I. I would go with displayport in this case.
I dont use the monitor speakers, I use headphones or a pair of Tannoy monitors.
Do you need a professional calibration to work in professional imaging or it is just a personal desire to have realistic colors? In the latter case the BL3200PT is totally satisfying.
I did that test.
Adjusting the gamma with windows or nvidia control panel, also the first square is clearly visible. Without that it's OK from the second one only. NB: your specific unit may vary.
This is an interesting topic. I have a glossy TV, glossy notebook and semi-matte monitor (the BenQ BL3200PT) I work a lot with text, but it's the images which are more vibrant on glossy screens. I think the antiglare is not heavy on this monitor. Would I have preferred a glossy or PDC? Yes.
I...
Just one consideration: most people with a "perfect" monitor will not search for it on forums like this one, unless they already did their homework before purchase (i.e. choosing between different models, and then reporting their findings, like I did).
Therefore the real % of defective panels...