Date: Thu, 26 Mar 1998 17:28:02 +0100 (MET) From: Luigi Rizzo <luigi@labinfo.iet.unipi.it> To: cshenton@it.hq.nasa.gov (Chris Shenton) Cc: gurney_j@resnet.uoregon.edu, hasty@rah.star-gate.com, multimedia@FreeBSD.ORG Subject: Re: The FreeBSD lounge... Message-ID: <199803261628.RAA15469@labinfo.iet.unipi.it> In-Reply-To: <xoipvj9mktw.fsf@wirehead.it.hq.nasa.gov> from "Chris Shenton" at Mar 26, 98 12:18:48 pm
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> > but I do agree with Luigi on using GSM for audio... it's really great > > on modem links (Luigi and I have used it between us, and each time one > > of us was behind a modem)... and you can still use your modem for > > other stuff... (gsm is encodes 160 16-bit samples into 33bytes)... > > When I've done this point-to-point it worked fine as you say. When I > did it multicast I got flooded with MBONE routing updates and it > sucked so much of my modem bandwidth that RIP routes failed to get > through and my link died. I used the mrouted.conf "bandwidth" > parameter to leave me some room on my line for non-MBONE > traffic. After a while, the mrouting stabilized and became a low > overhead. the way i use it is not to run a tunnel across the modem line (which btw is not easy to set up unless you have an ethernet interface on your machine at home -- mrouted refuses to start when you have a single interface), but rather using a gateway program like my "tcoder" (at http://www.iet.unipi.it/~luigi/FreeBSD.html ). In fact, since tcoder does audio conversion to GSM or LPC, the source format is not really a problem... cheers luigi -----------------------------+-------------------------------------- Luigi Rizzo | Dip. di Ingegneria dell'Informazione email: luigi@iet.unipi.it | Universita' di Pisa tel: +39-50-568533 | via Diotisalvi 2, 56126 PISA (Italy) fax: +39-50-568522 | http://www.iet.unipi.it/~luigi/ _____________________________|______________________________________ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message
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