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g729 and transcoding
Posted:
Tue Aug 14, 2007 1:08 pmby Op3r
I found out that g729 if you use it for agent and gateway there will be no transcoding that going to happen.
is this true?
Posted:
Tue Aug 14, 2007 1:27 pmby ramindia
Hi
i found some notes for you from meetme document
Some additional notes on Meetme conferences
The conference bridge runs ulaw codec by default. If you let people connect with GSM or other codecs, Asterisk will use CPU power to convert audio between codecs
ram
Posted:
Tue Aug 14, 2007 2:13 pmby mflorell
Meetme actually translates everything to slin. Everything is transcoded in meetme to that, it is essentially raw ULAW so you don't see a performance hit when using ULAW like you do when using G729. If you do use G729 for agent and trunks, it will have to transcode both sides.
Posted:
Tue Aug 14, 2007 3:27 pmby Op3r
is there a way to have it use g729 codec?
Posted:
Tue Aug 14, 2007 4:01 pmby mflorell
Nope, app_conference can do it, but it is unstable, and noone has been able to fix the random double-free crash bug in it's code.
Posted:
Wed Aug 15, 2007 3:33 amby gardo
a good solution is to implement a transcoding gateway. that would reduce load from the vicidial server.