[mythtv-users] Way out idea on watching same thing in multiplerooms

Tortise tortise at paradise.net.nz
Tue Jan 5 00:26:29 UTC 2010


----- Original Message ----- 
From: "David Brodbeck" <gull at gull.us>
To: "Discussion about mythtv" <mythtv-users at mythtv.org>
Sent: Tuesday, January 05, 2010 1:14 PM
Subject: Re: [mythtv-users] Way out idea on watching same thing in multiplerooms


On Mon, January 4, 2010 4:06 pm, Eric Sharkey wrote:
> On Mon, Jan 4, 2010 at 6:23 PM, Greg Oliver <oliver.greg at gmail.com> wrote:
>> Even with long hdmi cables or speaker wires, you are still adding
>> latency just like ethernet would have
>
> No.  Ethernet packets are a store-and-forward technology.  The delays
> are caused by the hardware in the switches and end points that have to
> stop, buffer, and analyze each packet, not in the propagation time on
> the wire.  With analog speaker wire there is none of that.

>This is true, although the delays are still quite short -- in a
fully-switched network that's not overloaded you're usually talking a few
milliseconds at most.  This is roughly equal to the delay you'd get by
standing one meter away from the speaker.

>This is, however, enough time for an analog signal to travel about 800
kilometers down a speaker wire. ;)


_______________________________________________

Which assists me observe what seems the main diversion here, the latency for this use is largely irrelevant.  If one person is 
moving from room to room, who cares about a few milliseconds latency?   Even if it were 500 msecs out I'd not care. (Assumption - 
each room has its own audio and video derived from the client PC in that room)

I feel we have established the latency concerns are real and of no significance to this mode of operation.




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