[asterisk-dev] 0015504: [patch] G726 Codec has choppy audio on Version 1.6.1

[Dmitry Andrianov]

I do not get your irony.
In order to simulate the thing I need THREE asterisk doing transcoding:

Softphone1 ===(g711)===> *1 ===(g726aal2)===> *2 ===(g726)===> *3 ===(g711)===> softphone2

And yes, I do not have them.


-----Original Message-----
From: asterisk-dev-bounces at lists.digium.com [mailto:asterisk-dev-bounces at lists.digium.com] On Behalf Of Johann Steinwendtner
Sent: Saturday, November 14, 2009 12:29 PM
To: Asterisk Developers Mailing List
Subject: Re: [asterisk-dev] 0015504: [patch] G726 Codec has choppy audio on Version 1.6.1

Dmitry Andrianov schrieb:
> Joshua,
> Just to be clear - I do not have equipment with g726 so my thoughts are based only on what I see in the code.
> 
> I clearly see your point and I agree. However just from looking at the code I do not understand how is it possible that two different paths produce different result.
> 
> The only difference between g726tolin_framein and g726aal2tolin_framein is the order in which they process nibbles. And the only thing g726tog726aal2_framein does is changing order of these nibbles. So in theory g726tog726aal2_framein + g726aal2tolin_framein should be indistinguishable from g726tolin_framein. If it is not true, it can indicate a problem with the whole transcoding core not just with this particular codec. This is why I believe it is good idea to investigate.
> 
> I would really love to help but I do not have any equipment using these codecs.
> 
You dont't have asterisk ?

Regards

Hans

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