2015-02-23, 05:03
(2015-02-23, 03:56)noggin Wrote: The lack of HD Audio isn't a licensing issue, it's a hardware limitation of the Pi and Pi2's GPU. The HDMI audio bandwidth tops out at 4 x 192kHz streams, whereas you need the bandwidth for 6 x 192kHz streams to bitstream Dolby True HD or DTS HD MA.The RPi-2 Specs indicates the video output is HDMI (rev 1.3 & 1.4).
I understood that anything HDMI 1.3 or later would support DTS-HD MA & Dolby TrueHD bitstreaming.
But after looking at the version info on the HDMI wiki, DTS-HD MA and Dobly TrueHD are optional features of HDMI 1.3 and later
(and pitty the version table within the HDMI wiki doesn't specify OPT along with a color code which features are optional within each version, it would be easier to know the status at a glance )
I wrongly assumed that RPi-2 HDMI version 1.3 could bitstream these HD audio formats, which i guess many would, without knowing that such features are optional so thanks for the clarification
In one sence, it's sloppy RPi-2 specs coming out from the RPi foundation/RS components, especially as the HDMI cabala doesn't want post 2012 products to specify version numbers.
The HDMI cabala requires post 2012 products to specify 'features' which can only mean spec sheets must get more detailed in this day and age where specs seems to be getting dumbd down.
So what other 'features' are included/missing from RPi-2 HDMI v1.3/1.4, is there a definitive list somewhere?
Cheers.