[icecast] bitrate for slow modems

Kelly Lee Myers k_myers at kyxpyx.com
Thu Apr 5 15:13:02 PDT 2001



ha ha.

:|
----- Original Message -----
From: "un" <un at king.dom.de>
To: <icecast at xiph.org>
Sent: Thursday, April 05, 2001 3:23 PM
Subject: Re: [icecast] bitrate for slow modems

> Kelly Lee Myers:
> > Depending on what you are broadcasting, for 28.8 I would go 16kbps and
be
> > really safe...
>
> well, you could consider not broadcasting at all, that would be 0kbps,
> and would fit my 9,6kbps gsm connection
> ;) scnr
> uno
>
> > ----- Original Message -----
> > From: "John Griffiths" <john at capmon.com>
> > To: <icecast at xiph.org>
> > Cc: <icecast at xiph.org>
> > Sent: Thursday, April 05, 2001 3:12 PM
> > Subject: [icecast] bitrate for slow modems
> >
> >
> > > ok so 24kbps for 56k modems...
> > >
> > > can i go any lower and get the 28 k modems? (still a lot of them
about) or
> > will 24 be good enough fo that?
> > >
> > > At 04:57 PM 4/4/2001 -0700, Jack Moffitt wrote:
> > > >> >
> > > >> > the bitrate on the mp3's is 128 (great for listening off the HD)
> > > >> >
> > > >> > whats a good bitrate to encode for streaming audio?
> > > >>
> > > >> I think this might be the problem 128kbps isn't going to work over
a
> > modem.
> > > >>
> > > >> I think 24kbps is probably the pratical limit for 56k modems. 56k
> > modems might
> > > >> be able to get a 32kbps stream but only under optimal conditions.
> > > >
> > > >I believe he said the outgoing stream was two 128k ISDN lines, which
> > > >from my ISDN memory I remember as actually having a 112k throughput
(the
> > > >other channel being used for signalling, etc).  Since you can only
push
> > > >packets out one at a time with a single tcp connection (i think) 128
is
> > > >definately not going to make it out, even if the one possible
listener
> > > >could receive data that fast.
> > > >
> > > >So a lower bitrate is most certainly necessary.  24kbps is a good one
to
> > > >choose if you're interested in modem listeners.  A lot of people like
> > > >56k but I don't think they realize that most people with 56k modems
get
> > > >more like 40k throughput or so.  I think going higher than 100k is
> > > >fairly wasteful.
>
> --- >8 ----
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