[asterisk-users] Recording from g729 to wav means transcoding ?

Gordon Henderson gordon+asterisk at drogon.net
Wed Jul 14 09:28:54 CDT 2010


On Wed, 14 Jul 2010, Jonas Kellens wrote:

> On 07/14/2010 03:41 PM, Gordon Henderson wrote:
>> It's the default codec used in DECT phones. I trialled it for a while for
>> some backhaul applications - the users didn't notice anything different
>> and CPU overhead seemed very low, but I've since gone back to alaw. It
>> does save 32Kb/sec per call though.
>>
>> Gordon
>>
> I'm using G711 also and was looking for a codec that takes less bandwidth.
>
> If you say your users did not notice anything in sound quality, then
> this G726-codec looks good.
>
> And you went back to G711 because you did not had to care about the
> bandwidth ?!

It's not that I don't care about bandwidth, rather than in most cases it's 
not a big issue. Most of my clients have at least 600Kb/sec upload speed 
and the number of concurrent calls they make is small. There are 
exceptions though and in those places we have better networking...

Gordon



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