[mythtv-users] One HDMI question from (Hijacked): HDMI sound issues

[Stephen Worthington]

On Wed, 28 Aug 2013 22:44:43 +1000, you wrote:

>On 28 August 2013 18:37, Stephen Worthington <stephen_agent at jsw.gen.nz> wrote:
>
>> In which case the cable is faulty.  By definition, an HDMI cable must
>> put out a signal that meets the HDMI specification.  If it puts out a
>> corrupt signal, it is not an HDMI cable.  That is the fundamental
>> difference between an analogue signal and a digital one.  There is no
>> such thing as a degraded or corrupt digital signal - that is a faulty
>> digital signal.
>
>This is still an overly simplified view..
>While digital, it's still carried over an electric, fundamentally analog signal.
>
>so yes, there can be losses.
>
>certainly more so with spdif or dvi, where there's nothing in regards
>to packet loss detection

Which is why the cables for those sorts of protocols are supposed to
be made of sufficient quality that there are no errors when operated
under normal conditions.  Uncorrected errors in digital connections
always mean something is faulty, unless the specification of the
protocol actually allows for errors.

So, yes, an SPDIF or DVI connection can have errors, but no, the
errors are not supposed to be there and they indicate a fault that
needs repair.