[mythtv-users] [OT]HDMI, SPDIF, DVI Nvidia, etc

[Robert McNamara]

On Fri, Feb 20, 2009 at 7:09 AM, Calvin Harrigan
<charriglists at bellsouth.net> wrote:
> The audio is being sent over the dvi, contrary to popular belief the hdmi
> didn't introduce audio in addition to the dvi spec.  They are electrically
> the same.  The audio data is interleaved with the video on the tdms lines.
>  HDMI really introduced hdcp, yay...

Still wrong.  DVI supports HDCP.  If you are passing audio via
DVI->HDMI, it's using a DVI *connector* at one end, but the electrical
modulation is HDMI format, *not* DVI.  They are *not* electrically the
same, they are two separate modulations that can use the same
connectors.  DVI->HDMI which uses audio is HDMI modulation.  HDCP was
*not* introduced with HDMI, it was already present (and still is
present) in DVI.

Robert