Re: Re: Shot Down in Flames

["Mal Lansell" <mlansell@xxxxxxxxxxxxxx>]

Maybe if the clocks are synchronised from a central server, you could give
a
"start playing at" command - that should be fairly immune from
lag.  I don't
imagine that each device plays back at the perfect rate, though - they
would
probably drift out of sync.

Maybe we need xplTimeCode ;-)

Mal

----- Original Message -----
From: "Tony Tofts" <tony@xxxxxxx>
To: <ukha_xpl@xxxxxxx>
Sent: Wednesday, January 05, 2005 5:59 PM
Subject: RE: [ukha_xpl] Re: Shot Down in Flames


>
> Hi Steve,
>
> > Could this approach be used to provide synchronized playback
> > on a number of xPLRIONet devices in different rooms with winamp?
>
> Nope, since the devices would still need to connect at exactly the
same
time
> etc.
>
> By this I mean that the devices will start to fill their buffers
before
> playing, and therefore end up out of synch still (other than by pure
luck!)
>
> Cross device synching is on the agenda though, since xplrionet should
be
> able to command devices to start together.
>
> E.g. rio fills buffer and waits for start signal, exstreamer fills
buffer
> and waits for start signal etc
>
> This isn't perfect though, and never can be, because of latency in the
> packets being sent across the network. The approach I've taken with
the
> rio's is to use a single broadcast message in the hope they receive it
at
> the same time. Other devices will need to be told to start
individually,
so
> much more difficult.
>
> Regards
> Tony
>
>
>
> xPL Links: http://www.xplproject.org.uk http://www.xplhal.com
http://www.xpl.myby.co.uk
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