[mythtv-users] Impedance mismatch?

[Simon Hobson]

Stephen Worthington <stephen_agent at jsw.gen.nz> wrote:

> Does your Blu-ray player have an optical TOSLINK digital
> output?  If it does, and your PC has an equivalent input, use that to
> feed a digital signal to the PC and have the PC convert it to analog.
> That is the best way to avoid ground loops, but it means that you will
> only get the audio quality of your PC's digital to analog converter
> and it may not be as good as your Blu-ray player's.

Could be the other way round.
Won't the PC do an A/D conversion at the input, process the signal digitally (eg mix it with other sources), then do a D/A conversion at the output ? So using digital may in fact result in one less D/A/D round trip.

Also, as already mentioned, if the TV has the option of sending the analogue for whatever it's showing out to a connector then that's worth looking at.
I helped a mate setup his TV & sound system not long ago - the surround sound system gets it's audio from the TV via HDMI ARC regardless of what the source is. That may be something worth looking into - is there anything that will break out the ARC to analogue ? (quick look suggests there are)