[Asterisk-Users] Low Bit Rate Codecs

Steve Underwood steveu at coppice.org
Mon May 10 05:53:42 MST 2004


brian k. west wrote:

>>>nasty. The higher rate (6.something kbps) sounds more reasonable. Using 
>>>30ms blocks, it is not so compatible with *, which is geared to 20ms 
>>>block processing. A lost packet causes a 30ms hole, so it tends to be 
>>>less tolerant of packet loss than something working in smaller blocks. 
>>>It sounds awful for anything but a single pure voice.
>>>      
>>>
>
>* can do 30ms codecs.  iLBC is one such codec...
>  
>
Sure it works. I didn't say it was incompatible. I said it was not so 
compatible. Because it doesn't fit into *'s 20ms block view of the world 
you end up with greater latency than you would with some other codecs.

Regards,
Steve




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