[Malvern] Streaming.

[Chris Eilbeck]

On Sun, Jan 14, 2007 at 09:30:22PM +0000, Geoff Bagley wrote:
> Keith Edmunds wrote:
> >On Sun, 14 Jan 2007 16:26:49 +0000
> >Geoff Bagley <geoff.bagley at btinternet.com> wrote:
> >
> >  
> >>Has anyone ever seen an ISO/OSI  seven-layer model for audio or video 
> >>streaming ?
> >>    
> >
> >The OSI stack is application independent (well, until you get to the
> >top layer anyway). The type of data is irrelevant - you could stream
> >audio or video using TCP, DECnet, AppleTalk, whatever... What is it
> >you're trying to do?
> >
> >Keith
> >  
> Hi Keith,
> 
> Thanks for the  response.
> OK about TCP etc.  I wondered whether the packet format was compatible with
> the data stream, which implies continuity. 
> I guess that the sampling theorem still applies.
> You still need a fast enough flow of TCP packets to  sample the data flow.
> 
> I have been trying to get audio streaming of broadcasts to work on Debian
> Etch. I have had some success, but the sample rate was far too slow, and
> the audio badly distorted ( I guess by aliasing).

Network latency will give you gapped playback, not distortion.  If you've
got distortion, it's gonna be either your soundcard, it's drivers, or the
speakers you're using.

> I also get the idea that even BBC stations don't all work with  mplayer.

Where from?

> Debian, and Ubuntu both offer a wide choice of assorted "players" .
> I have both distros working on this machine.  Not sure which of them I 
> should concentrate
> upon.
> 
> Of the two I would prefer Debian, but would settle for Ubuntu if there 
> was some major increase in ease or convenience.

I don't understand.  Install mplayer, get the rtsp URLs from

  http://www.dave.org.uk/streams  or 
  http://beebotron.awardspace.com 

and play what you want to listen to.  What is so difficult?

Chris
-- 
Chris Eilbeck
MARS Flight Crew                              http://www.mars.org.uk/
UKRA #1108 Level 2                                                UYB
Tripoli UK Member #9527                                          LSMR