[mythtv-users] Does MythTV Obviate a DVD Player?

Hamish Moffatt hamish at cloud.net.au
Sat Sep 4 20:16:38 EDT 2004

On Sat, Sep 04, 2004 at 06:13:11PM -0400, Jay R. Ashworth wrote:
> On Sat, Sep 04, 2004 at 10:59:42PM +1000, Hamish Moffatt wrote:
> > > blind bit of difference. The one thing I'd say is use optical cable if 
> > > possible to avoid any electrical hum.
> > 
> > How will you hear electrical hum on a digital signal?
> Because low frequency AC hum on a cable carrying an analog
> representation of a digital signal can mess up the line receivers and
> cause bit and packet errors.  No signal is *entirely* digital, though
> optical signals likely come closest.

Alright, that's a fair explanation. You could get bit errors. That won't
be heard as electrical hum, which was my original point.

More accurately you would prefer optical to avoid ground loops.
Electrical hum is the analog result of ground loops.

Hamish Moffatt VK3SB <hamish at debian.org> <hamish at cloud.net.au>

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