VP50 to Pioneer 5000EX - Which Colour Space ?

[TiVoMad]

Hi,
As per the title, I have a DVDO VP50 going to a Pioneer 5000EX panel via HDMI using 1080P/60. I notice that both devices support several colour spaces (RGB Video, RGB PC, Component 4:4:4, Component 4:2:2). My sources give a variety of colour spaces (SKY HD, Arcan DV79, Toshiba HD-D1, Sony PS3). Is there a 'best' setting to use between the Plasma and scaler ? I've tried them all. The component settings seem to be a bit off on the colours (too red).

Any advice would be appreciated.

Kind Regards,
TiVo.

[StooMonster]

As to the output from VP50:

RGB 4:4:4 is 8-bit colour
Component 4:4:4 is 8-bit colour
Component 4:2:2 is 10-bit colour

All of these are deliverable over the HDMI interface in both VP50 and PDP-5000EX.

But which is best?

VP50 may start processing in YUV 4:2:2 however the final stages of video processing are in RGB 4:4:4 10-bit (e.g. gamma correction).

PDP-5000EX handles each of these colourspaces differently, if it receives 4:2:2 it will need to interpolate the chroma encoding, if it receives 4:4:4 8-bit it will not be using all 10-bit (except for any additional processing it does).

How to tell which is best to use? VP50 should output a chroma burst test pattern which could then be viewed over HDMI on PDP-5000EX to see which colourspace transport works the best with the display.

Unfortunately the VP50 doesn't have such a test pattern, so 'banding' is the best test. e.g. look at Sky One channel idents which use colour gradients circulating from centre and see which colourspace transport has least banding.

Personally I have VP50 set to RGB 4:4:4 8-bit for input into my PDP-5000EX.

StooMonster

Originally Posted by TiVoMad

The component settings seem to be a bit off on the colours (too red).

Any advice would be appreciated.

You also need to ensure that all possible processing is turned off in the display, otherwise this will cause problems like you describe.

StooMonster