[PLUG-TALK] information propagation - radio vs internet

wes plug at the-wes.com
Thu Mar 10 06:54:02 PST 2011

On Thu, Mar 10, 2011 at 6:21 AM, Michael Rasmussen <michael at jamhome.us>wrote:

> On Wed, Mar 09, 2011 at 07:45:51PM -0800, Michael Rasmussen wrote:
> > I was listening to KMHD - Divaville - and tweeting about it and checked
> my link for streaming by KMHD.
> > So the radio is going and the stream is playing through my laptop and ...
> WTH?  The internet stream is
> > about three seconds offset to the radio.
> >
> > A traceroute to KMHD shows a 32ms average RTT.  Wikipedia reminds me that
> radio waves travel at the speed of light.
> > So where is the difference introduced? Ideas?
> Sorry everybody, I neglected to mention the stream was three seconds ahead
> of the broadcast.
> And indeed that was the surprise.
> --
>      Michael Rasmussen, Portland Oregon
>  Trading kilograms for kilometers since 2003
>    Be appropriate && Follow your curiosity
>          http://www.jamhome.us/
> The Fortune Cookie Fortune today is:
> It is better to be alone than to have a wrong friend.
>    ~ http://someoneoncetoldme.com/gallery/13122007
The broadcast equipment maintains its own buffer separate from that of the
online stream equipment, which are both separate from the actual audio
source. I imagine there are different people at each station in charge of
each system, so the buffers would be set according to their preference.

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