I read somewhere, probably the Wiki, that the core of MeetMe uses uLaw. So when sound comes in, it is transcoded to uLaw first, then mixed with all of the other audio at that moment, then sent out again. At that point, it is transcoded again to the original format.
So, if everything is in uLaw, you bypass 2 transcoding processes. And if you take into account both of those transcoding processes (with other codecs), they add 10 or so milliseconds each time which results in ever increasing delays. If you are using all uLaw connections, try changing one of them to iLBC and try another conference. I noticed 10 second delays after 5 minutes of conference. Let me know if you find anything else out about this. Dan -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tony Mountifield Sent: Sunday, June 26, 2005 5:35 PM To: [email protected] Subject: [Asterisk-Users] Re: Horrible MeetMe performance In article <[EMAIL PROTECTED]>, Dan Morin <[EMAIL PROTECTED]> wrote: > Make sure that if you're using anything other than zaptel hardware, it > is running uLaw as the codec. Anything else will produce ever > increasing delays. Hey, now that's a snippet of information I hadn't seen before! All my work with SIP and MeetMe is using aLaw, since I'm in the UK. Do you know why it causes ever increasing delays? I would have thought that a transcoding would just introduce a contstant (small) delay, not an accumulating one. So if you're right, then it ought to be fixable, once the mechanism is understood. Cheers Tony -- Tony Mountifield Work: [EMAIL PROTECTED] - http://www.softins.co.uk Play: [EMAIL PROTECTED] - http://tony.mountifield.org _______________________________________________ Asterisk-Users mailing list [email protected] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ Asterisk-Users mailing list [email protected] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
