[Freeswitch-users] Issues with rtp audio going in slow motion

Mon Dec 15 20:14:54 MSK 2014

Interesting information I found out about this issue.  One person stated
that they had an hour long call.  About mid way through the call the caller
dropped down to this "slow motion" slower sample rate.  After about 30
seconds of this slow motion, the call went back to a normal state and
worked fine for the rest of the call.  I am forcing G711u on all inbound
and outbound calls heading the to PSTN / VoIP carrier.  This is an
interesting question and makes me wonder if I can disable the write
resampler.

Any suggestions?

I have not set the phone to only use G711u yet, I am trying to make this
work on server side only.

On Mon, Nov 3, 2014 at 12:00 PM, Anthony Minessale <
anthony.minessale at gmail.com> wrote:
>
> This should be handled in JIRA not the mailing list.
> If problem or issue seems prudent in the subject, think JIRA
> http://jira.freeswitch.org
> That way you can post logs etc and not flood the list with help questions.
>
>
> On Mon, Nov 3, 2014 at 10:49 AM, Joel White <joelewhite at gmail.com> wrote:
>
>> FreeSWITCH Version 1.4.9+git~20140929T194948Z~ae069dcca7~64bit (git
>> ae069dc 2014-09-29 19:49:48Z 64bit)
>>
>> Current version on the server
>>
>> On Mon, Nov 3, 2014 at 11:44 AM, Joel White <joelewhite at gmail.com> wrote:
>>
>>> I will work on getting a sip trace.  I am seeing this happen when
>>> monitoring the system.  The calls sound fine and then it sounds like the
>>> audio slows to a crawl.  It does not appear to happen regularly and I have
>>> seen it happen on individual calls and on conferences.
>>>
>>> The conferences have external DIDs for outside participants.  The
>>> internal extensions dial a 5 digit extension.
>>>
>>>
>>>
>>>
>>> On Mon, Nov 3, 2014 at 10:42 AM, Brian West <brian at freeswitch.org>
>>> wrote:
>>>
>>>> What rev are you on? How are you replicating this? Can you get a
>>>> siptrace and logs and file a JIRA so we can get this bug fixed.  Sounds
>>>> like the codec is probably changing during the call, are you doing a
>>>> hold/unhold operation?
>>>>
>>>> On Tue, Oct 28, 2014 at 6:23 PM, Chris Tunbridge <blasterjr at gmail.com>
>>>> wrote:
>>>>
>>>>> Joel is there any way you can test with one polycom set to g711u.
>>>>>
>>>>> This sounds to me like a 16k vs 8k transcoding issue, maybe setup your
>>>>> codecs on the freeswitch side to only allow 8k g722 (if that's even
>>>>> possible)
>>>>>
>>>>> On Tue, Oct 21, 2014 at 8:22 AM, Joel White <joelewhite at gmail.com>
>>>>> wrote:
>>>>>
>>>>>> Also, just to mention.  The CPU is never above 2% and the current
>>>>>> load is about 20 simultaneous calls
>>>>>>
>>>>>> On Tue, Oct 21, 2014 at 10:16 AM, Joel White <joelewhite at gmail.com>
>>>>>> wrote:
>>>>>>
>>>>>>> Is this an issue with transcoding?
>>>>>>>
>>>>>>> I am wondering how I lock it down so that transcoding only happens
>>>>>>> at a minimum
>>>>>>>
>>>>>>> Also, would it be bad to completely remove G722 from the codec list?
>>>>>>>
>>>>>>> I think the issue is that our provider is sending G711 and all of
>>>>>>> the Polycom Phones are trying to use G722
>>>>>>>
>>>>>>> On Mon, Oct 20, 2014 at 11:43 AM, Joel White <joelewhite at gmail.com>
>>>>>>> wrote:
>>>>>>>
>>>>>>>> I am having an issue where some calls start out fine and then go
>>>>>>>> into slow motion (distorted slow speech)
>>>>>>>>
>>>>>>>> I noticed something in the logs stating
>>>>>>>>
>>>>>>>>  Activating write resampler
>>>>>>>>
>>>>>>>>
>>>>>>>> What does this mean and how do I avoid this in the future?
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> Thank you in advance
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>> _________________________________________________________________________
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>>>>>> http://www.freeswitchsolutions.com
>>>>>>
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>>>>>
>>>>>
>>>>>
>>>>> _________________________________________________________________________
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>>>>>
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>>>>
>>>>
>>>>
>>>> --
>>>>
>>>> *Brian West*
>>>> brian at freeswitch.org
>>>>
>>>>
>>>> *Twitter: @FreeSWITCH , @briankwest*
>>>> http://www.freeswitchbook.com
>>>> http://www.freeswitchcookbook.com
>>>>
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>>>>
>>>>
>>>> _________________________________________________________________________
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>>>> http://www.freeswitchsolutions.com
>>>>
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>>>>
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>>>
>>>
>>
>> _________________________________________________________________________
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>> http://www.freeswitchsolutions.com
>>
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>
>
>
> --
> Anthony Minessale II       ♬ @anthmfs  ♬ @FreeSWITCH  ♬
>
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>
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>
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