[asterisk-users] Transcoding degradation G711<->iLBC

Steve Underwood steveu at coppice.org
Sun Apr 15 06:34:42 CDT 2012

On 04/15/2012 07:26 PM, Patrick Lists wrote:
> On 04/15/2012 01:15 PM, Gustavo Garcia Bernardo wrote:
>> Is it a good idea to use asterisk transcoding from G711 to iLBC or
>> should I find out any other solution not involving transcoding (f.e.
>> using G.729 that is supported in both sides). I'm worried about voice
>> quality and trying to avoid paying for G.729 licensing.
>> Anybody with experience or quantitative measurements of the voice
>> quality degradation in that scenario?
> The term that may interest you is "Mean Opinion Score" and iLBC is 
> quite good. See http://en.wikipedia.org/wiki/Mean_opinion_score
There's lies, damn lies and mean opinion scores. The chart on that 
wikipedia page is mostly for humour value.


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