[Serusers] Re: Xten-RTPProxy choppy audio

Maxim Sobolev sobomax at portaone.com
Wed Dec 10 17:12:35 CET 2003


Thanks, Klaus! Please keep us informed about your findings. BTW, which 
exactly version of x-lite are you using?

-Maxim

Klaus Darilion wrote:

> I can reproduce the choppy audio
> setup:
> budgetone-100 <----> ser+rtpproxy(version from today) on redhat 9 (or 8,
> not sure) <------>x-lite build 1088 on win xp
> 
> the choppy sound occours every 5 seconds, in both directions.
> RTP-analysis:
> RTP stream from budgetone to x-lite (via rtpproxy) is fine (no jitter,
> no loss)
> RTP stream from x-lite to budgetone (via rtpproxy): very strange: x-lite
> switches to a new SSRC (and seq-nr. start at 0 again) every 5 seconds.
> 
> so, in my opinion: rtpproxy works fine, x-lite is guilty. but why does
> this happen only if the rtp proxy is involved? ...further investigations
> are planned...
> 
> Klaus
> 
> 
>>-----Original Message-----
>>From: Jan Janak [mailto:janak at fokus.fraunhofer.de] 
>>Sent: Wednesday, December 10, 2003 4:09 PM
>>To: Adrian Georgescu
>>Cc: serusers at lists.iptel.org; Ricardo Villa
>>Subject: Re: [Serusers] Re: Xten-RTPProxy choppy audio
>>
>>
>>Well, we can generate the traces locally, but I haven't encounter the
>>problem you describe so it makes no sense.
>>
>>You wrote you are able to reproduce the problem, in that case I would
>>like to ask you to generate the traces that show the problem 
>>so we could
>>analyze and fix it.
>>
>>Also please tell us on what OS does this happen ? (I mean the 
>>OS the proxy
>>is running on).
>>
>>Another question, what is the license of your RTP proxy ? I 
>>didn't find
>>any licensing info in the sources. Will the sources be available ?
>>
>> Jan.
>>
>>On 10-12 16:04, Adrian Georgescu wrote:
>>
>>>On Wednesday, Dec 10, 2003, at 15:48 Europe/Amsterdam, 
>>
>>Ricardo Villa 
>>
>>>wrote:
>>>
>>>
>>>>Adrian,
>>>>
>>>>Do you have an Etheral trace trace of such a call (using G711)?
>>>
>>>I guess  ethereal traces can be generated with ethereal program and 
>>>decoded locally on your servers if you want to isolate this.
>>>
>>>
>>>>I can
>>>>decode it and produce an audio file for all to examine.  
>>
>>This way we 
>>
>>>>can get
>>>>to the bottom of this.
>>>>Thanks,
>>>>Ricardo
>>>
>>>_______________________________________________
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>>
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>>
> 
> 
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