[Freeswitch-users] Audio delays and jitter

Fri Oct 2 21:58:28 MSD 2015

Yeah looking for some technical explanation other than "do it" :)

On Fri, Oct 2, 2015 at 1:53 PM Blake Priddy <bpriddy at bryantschools.org>
wrote:

> Mine is because the dev's told me to ;)
> I used to use Ubuntu. But after my experiences I have been converted.
> On Oct 2, 2015 12:50 PM, "Danny Gershman" <danny.gershman at gmail.com>
> wrote:
>
>> What the main reason why Debian 8 is the distro of choice for FS 1.6?
>> Trying to get buy in.
>>
>> On Wed, Sep 30, 2015 at 11:51 PM Danny Gershman <danny.gershman at gmail.com>
>> wrote:
>>
>>> Ok sounds good, I'll contribute my findings, I have a wiki login I
>>> believe.
>>>
>>> On Wed, Sep 30, 2015 at 11:50 PM Anthony Minessale <
>>> anthony.minessale at gmail.com> wrote:
>>>
>>>> The community maintains a wiki page but I am not sure how up to date it
>>>> is.
>>>> https://freeswitch.org/confluence/display/FREESWITCH/CentOS+6
>>>>
>>>>
>>>> On Wed, Sep 30, 2015 at 10:46 PM, Danny Gershman <
>>>> danny.gershman at gmail.com> wrote:
>>>>
>>>>> Thanks I'll give it a whirl and try to compile.
>>>>>
>>>>> On Wed, Sep 30, 2015 at 11:44 PM Anthony Minessale <
>>>>> anthony.minessale at gmail.com> wrote:
>>>>>
>>>>>> We have community CentOS packages but they are missing most of the
>>>>>> multimedia functionality.  If you just need opus its probably ok.
>>>>>> And 1.6.3 will bring another round of media changes so you might want
>>>>>> to try master or nightly packages to prepare for it.
>>>>>>
>>>>>>
>>>>>> On Wed, Sep 30, 2015 at 10:40 PM, Danny Gershman <
>>>>>> danny.gershman at gmail.com> wrote:
>>>>>>
>>>>>>> Ok I have no problem upgrading to 1.6.2, assuming that this would
>>>>>>> provide some kind of resolution to the issue with OPUS.  My question is if
>>>>>>> there has been any success with running it on Centos 6.4?
>>>>>>>
>>>>>>> On Wed, Sep 30, 2015 at 11:38 PM Anthony Minessale <
>>>>>>> anthony.minessale at gmail.com> wrote:
>>>>>>>
>>>>>>>> No new improvements are planned for 1.4.
>>>>>>>> Media is undergoing heavy refactoring in 1.6 and its not
>>>>>>>> backportable.
>>>>>>>>
>>>>>>>> On Wed, Sep 30, 2015 at 10:31 PM, Brian West <brian at freeswitch.org>
>>>>>>>> wrote:
>>>>>>>>
>>>>>>>>> You must like pain!  Why don't you try Debian 8?
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Wednesday, September 30, 2015, Danny Gershman <
>>>>>>>>> danny.gershman at gmail.com> wrote:
>>>>>>>>>
>>>>>>>>>> Will 1.6.2 run on CentOS 6.4?  Is there a migration guide?
>>>>>>>>>>
>>>>>>>>>> On Wed, Sep 30, 2015 at 6:47 PM Brian West <brian at freeswitch.org>
>>>>>>>>>> wrote:
>>>>>>>>>>
>>>>>>>>>>> Danny,
>>>>>>>>>>>
>>>>>>>>>>> We've resolved many issues since 1.4.19, have you considered
>>>>>>>>>>> trying 1.6.2?  Its got some more improvements in this area.
>>>>>>>>>>>
>>>>>>>>>>> On Wed, Sep 30, 2015 at 4:54 PM, Danny Gershman <
>>>>>>>>>>> danny.gershman at gmail.com> wrote:
>>>>>>>>>>>
>>>>>>>>>>>> Currently tested with 1.4.19
>>>>>>>>>>>>
>>>>>>>>>>>> On Wed, Sep 30, 2015 at 5:23 PM Brian West <
>>>>>>>>>>>> brian at freeswitch.org> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>>> Which revision of FreeSWITCH have you tested with?
>>>>>>>>>>>>>
>>>>>>>>>>>>> On Wed, Sep 30, 2015 at 4:15 PM, Danny Gershman <
>>>>>>>>>>>>> danny.gershman at gmail.com> wrote:
>>>>>>>>>>>>>
>>>>>>>>>>>>>> We are using the OPUS codec with Chrome and WebRTC to make
>>>>>>>>>>>>>> SIP calls into FS conferences.  We have packet captures at the edge of
>>>>>>>>>>>>>> network that sound clear, but when they get to FreeSWITCH they sound
>>>>>>>>>>>>>> distorted via delays and clipping.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> I've tried several combinations of jitterbuffer settings,
>>>>>>>>>>>>>> disabled/enabling RTP timers, conference.  I have a mechanism I use in
>>>>>>>>>>>>>> which I replay the RTP packets using SIPP and try them out.  Is there a way
>>>>>>>>>>>>>> to dynamically adjust the jitterbuffer so that the right size is being
>>>>>>>>>>>>>> used?  Right now I have it set at 180:540:540.  Maybe there is some other
>>>>>>>>>>>>>> setting I could try that would help?
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Perhaps there's a way to force OPUS to use less bandwidth at
>>>>>>>>>>>>>> the expense of quality?
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> I'm willing to share the PCAPs some examples.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Thanks in advance.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> --Danny Gershman
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> _________________________________________________________________________
>>>>>>>>>>>>>> Professional FreeSWITCH Consulting Services:
>>>>>>>>>>>>>> consulting at freeswitch.org
>>>>>>>>>>>>>> http://www.freeswitchsolutions.com
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Official FreeSWITCH Sites
>>>>>>>>>>>>>> http://www.freeswitch.org
>>>>>>>>>>>>>> http://confluence.freeswitch.org
>>>>>>>>>>>>>> http://www.cluecon.com
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> FreeSWITCH-users mailing list
>>>>>>>>>>>>>> FreeSWITCH-users at lists.freeswitch.org
>>>>>>>>>>>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>>>>>>>>>>>> UNSUBSCRIBE:
>>>>>>>>>>>>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>>>>>>>>>>>> http://www.freeswitch.org
>>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> --
>>>>>>>>>>>>>
>>>>>>>>>>>>> *Brian West*
>>>>>>>>>>>>> brian at freeswitch.org
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> *Twitter: @FreeSWITCH , @briankwest*
>>>>>>>>>>>>> http://www.freeswitchbook.com
>>>>>>>>>>>>> http://www.freeswitchcookbook.com
>>>>>>>>>>>>>
>>>>>>>>>>>>> Got Bugs? Report them here <https://freeswitch.org/jira>! |
>>>>>>>>>>>>> Reddit: /r/freeswitch <https://www.reddit.com/r/freeswitch>
>>>>>>>>>>>>>
>>>>>>>>>>>>> *T:*+19184209001 | *F:*+19184209002 | *M:*+1918424WEST (9378)
>>>>>>>>>>>>> *iNUM:*+883 5100 1420 9001 | *ISN:*410*543 | *Skype:*
>>>>>>>>>>>>> briankwest
>>>>>>>>>>>>>
>>>>>>>>>>>>> _________________________________________________________________________
>>>>>>>>>>>>> Professional FreeSWITCH Consulting Services:
>>>>>>>>>>>>> consulting at freeswitch.org
>>>>>>>>>>>>> http://www.freeswitchsolutions.com
>>>>>>>>>>>>>
>>>>>>>>>>>>> Official FreeSWITCH Sites
>>>>>>>>>>>>> http://www.freeswitch.org
>>>>>>>>>>>>> http://confluence.freeswitch.org
>>>>>>>>>>>>> http://www.cluecon.com
>>>>>>>>>>>>>
>>>>>>>>>>>>> FreeSWITCH-users mailing list
>>>>>>>>>>>>> FreeSWITCH-users at lists.freeswitch.org
>>>>>>>>>>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>>>>>>>>>>> UNSUBSCRIBE:
>>>>>>>>>>>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>>>>>>>>>>> http://www.freeswitch.org
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> _________________________________________________________________________
>>>>>>>>>>>> Professional FreeSWITCH Consulting Services:
>>>>>>>>>>>> consulting at freeswitch.org
>>>>>>>>>>>> http://www.freeswitchsolutions.com
>>>>>>>>>>>>
>>>>>>>>>>>> Official FreeSWITCH Sites
>>>>>>>>>>>> http://www.freeswitch.org
>>>>>>>>>>>> http://confluence.freeswitch.org
>>>>>>>>>>>> http://www.cluecon.com
>>>>>>>>>>>>
>>>>>>>>>>>> FreeSWITCH-users mailing list
>>>>>>>>>>>> FreeSWITCH-users at lists.freeswitch.org
>>>>>>>>>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>>>>>>>>>> UNSUBSCRIBE:
>>>>>>>>>>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>>>>>>>>>> http://www.freeswitch.org
>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> --
>>>>>>>>>>>
>>>>>>>>>>> *Brian West*
>>>>>>>>>>> brian at freeswitch.org
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> *Twitter: @FreeSWITCH , @briankwest*
>>>>>>>>>>> http://www.freeswitchbook.com
>>>>>>>>>>> http://www.freeswitchcookbook.com
>>>>>>>>>>>
>>>>>>>>>>> Got Bugs? Report them here <https://freeswitch.org/jira>! |
>>>>>>>>>>> Reddit: /r/freeswitch <https://www.reddit.com/r/freeswitch>
>>>>>>>>>>>
>>>>>>>>>>> *T:*+19184209001 | *F:*+19184209002 | *M:*+1918424WEST (9378)
>>>>>>>>>>> *iNUM:*+883 5100 1420 9001 | *ISN:*410*543 | *Skype:*briankwest
>>>>>>>>>>>
>>>>>>>>>>> _________________________________________________________________________
>>>>>>>>>>> Professional FreeSWITCH Consulting Services:
>>>>>>>>>>> consulting at freeswitch.org
>>>>>>>>>>> http://www.freeswitchsolutions.com
>>>>>>>>>>>
>>>>>>>>>>> Official FreeSWITCH Sites
>>>>>>>>>>> http://www.freeswitch.org
>>>>>>>>>>> http://confluence.freeswitch.org
>>>>>>>>>>> http://www.cluecon.com
>>>>>>>>>>>
>>>>>>>>>>> FreeSWITCH-users mailing list
>>>>>>>>>>> FreeSWITCH-users at lists.freeswitch.org
>>>>>>>>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>>>>>>>>> UNSUBSCRIBE:
>>>>>>>>>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>>>>>>>>> http://www.freeswitch.org
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>>
>>>>>>>>> *Brian West*
>>>>>>>>> brian at freeswitch.org
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> *Twitter: @FreeSWITCH , @briankwest*
>>>>>>>>> http://www.freeswitchbook.com
>>>>>>>>> http://www.freeswitchcookbook.com
>>>>>>>>>
>>>>>>>>> Got Bugs? Report them here <https://freeswitch.org/jira>! |
>>>>>>>>> Reddit: /r/freeswitch <https://www.reddit.com/r/freeswitch>
>>>>>>>>>
>>>>>>>>> *T:*+19184209001 | *F:*+19184209002 | *M:*+1918424WEST (9378)
>>>>>>>>> *iNUM:*+883 5100 1420 9001 | *ISN:*410*543 | *Skype:*briankwest
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> _________________________________________________________________________
>>>>>>>>> Professional FreeSWITCH Consulting Services:
>>>>>>>>> consulting at freeswitch.org
>>>>>>>>> http://www.freeswitchsolutions.com
>>>>>>>>>
>>>>>>>>> Official FreeSWITCH Sites
>>>>>>>>> http://www.freeswitch.org
>>>>>>>>> http://confluence.freeswitch.org
>>>>>>>>> http://www.cluecon.com
>>>>>>>>>
>>>>>>>>> FreeSWITCH-users mailing list
>>>>>>>>> FreeSWITCH-users at lists.freeswitch.org
>>>>>>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>>>>>>> UNSUBSCRIBE:
>>>>>>>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>>>>>>> http://www.freeswitch.org
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>>> Anthony Minessale II       ♬ @anthmfs  ♬ @FreeSWITCH  ♬
>>>>>>>>
>>>>>>>> ☞ http://freeswitch.org/  ☞ http://cluecon.com/  ☞
>>>>>>>> http://twitter.com/FreeSWITCH
>>>>>>>> ☞ irc.freenode.net #freeswitch ☞ *http://freeswitch.org/g+
>>>>>>>> <http://freeswitch.org/g+>*
>>>>>>>>
>>>>>>>> ClueCon Weekly Development Call
>>>>>>>> ☎ sip:888 at conference.freeswitch.org  ☎ +19193869900
>>>>>>>>
>>>>>>>> https://www.youtube.com/watch?v=9XXgW34t40s
>>>>>>>> https://www.youtube.com/watch?v=NLaDpGQuZDA
>>>>>>>>
>>>>>>>> _________________________________________________________________________
>>>>>>>> Professional FreeSWITCH Consulting Services:
>>>>>>>> consulting at freeswitch.org
>>>>>>>> http://www.freeswitchsolutions.com
>>>>>>>>
>>>>>>>> Official FreeSWITCH Sites
>>>>>>>> http://www.freeswitch.org
>>>>>>>> http://confluence.freeswitch.org
>>>>>>>> http://www.cluecon.com
>>>>>>>>
>>>>>>>> FreeSWITCH-users mailing list
>>>>>>>> FreeSWITCH-users at lists.freeswitch.org
>>>>>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>>>>>> UNSUBSCRIBE:
>>>>>>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>>>>>> http://www.freeswitch.org
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> _________________________________________________________________________
>>>>>>> Professional FreeSWITCH Consulting Services:
>>>>>>> consulting at freeswitch.org
>>>>>>> http://www.freeswitchsolutions.com
>>>>>>>
>>>>>>> Official FreeSWITCH Sites
>>>>>>> http://www.freeswitch.org
>>>>>>> http://confluence.freeswitch.org
>>>>>>> http://www.cluecon.com
>>>>>>>
>>>>>>> FreeSWITCH-users mailing list
>>>>>>> FreeSWITCH-users at lists.freeswitch.org
>>>>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>>>>> UNSUBSCRIBE:
>>>>>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>>>>> http://www.freeswitch.org
>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Anthony Minessale II       ♬ @anthmfs  ♬ @FreeSWITCH  ♬
>>>>>>
>>>>>> ☞ http://freeswitch.org/  ☞ http://cluecon.com/  ☞
>>>>>> http://twitter.com/FreeSWITCH
>>>>>> ☞ irc.freenode.net #freeswitch ☞ *http://freeswitch.org/g+
>>>>>> <http://freeswitch.org/g+>*
>>>>>>
>>>>>> ClueCon Weekly Development Call
>>>>>> ☎ sip:888 at conference.freeswitch.org  ☎ +19193869900
>>>>>>
>>>>>> https://www.youtube.com/watch?v=9XXgW34t40s
>>>>>> https://www.youtube.com/watch?v=NLaDpGQuZDA
>>>>>>
>>>>>> _________________________________________________________________________
>>>>>> Professional FreeSWITCH Consulting Services:
>>>>>> consulting at freeswitch.org
>>>>>> http://www.freeswitchsolutions.com
>>>>>>
>>>>>> Official FreeSWITCH Sites
>>>>>> http://www.freeswitch.org
>>>>>> http://confluence.freeswitch.org
>>>>>> http://www.cluecon.com
>>>>>>
>>>>>> FreeSWITCH-users mailing list
>>>>>> FreeSWITCH-users at lists.freeswitch.org
>>>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>>>> UNSUBSCRIBE:
>>>>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>>>> http://www.freeswitch.org
>>>>>
>>>>>
>>>>>
>>>>> _________________________________________________________________________
>>>>> Professional FreeSWITCH Consulting Services:
>>>>> consulting at freeswitch.org
>>>>> http://www.freeswitchsolutions.com
>>>>>
>>>>> Official FreeSWITCH Sites
>>>>> http://www.freeswitch.org
>>>>> http://confluence.freeswitch.org
>>>>> http://www.cluecon.com
>>>>>
>>>>> FreeSWITCH-users mailing list
>>>>> FreeSWITCH-users at lists.freeswitch.org
>>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>>> UNSUBSCRIBE:
>>>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>>> http://www.freeswitch.org
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Anthony Minessale II       ♬ @anthmfs  ♬ @FreeSWITCH  ♬
>>>>
>>>> ☞ http://freeswitch.org/  ☞ http://cluecon.com/  ☞
>>>> http://twitter.com/FreeSWITCH
>>>> ☞ irc.freenode.net #freeswitch ☞ *http://freeswitch.org/g+
>>>> <http://freeswitch.org/g+>*
>>>>
>>>> ClueCon Weekly Development Call
>>>> ☎ sip:888 at conference.freeswitch.org  ☎ +19193869900
>>>>
>>>> https://www.youtube.com/watch?v=9XXgW34t40s
>>>> https://www.youtube.com/watch?v=NLaDpGQuZDA
>>>>
>>>> _________________________________________________________________________
>>>> Professional FreeSWITCH Consulting Services:
>>>> consulting at freeswitch.org
>>>> http://www.freeswitchsolutions.com
>>>>
>>>> Official FreeSWITCH Sites
>>>> http://www.freeswitch.org
>>>> http://confluence.freeswitch.org
>>>> http://www.cluecon.com
>>>>
>>>> FreeSWITCH-users mailing list
>>>> FreeSWITCH-users at lists.freeswitch.org
>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>> UNSUBSCRIBE:
>>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>> http://www.freeswitch.org
>>>
>>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>>
>> Official FreeSWITCH Sites
>> http://www.freeswitch.org
>> http://confluence.freeswitch.org
>> http://www.cluecon.com
>>
>> FreeSWITCH-users mailing list
>> FreeSWITCH-users at lists.freeswitch.org
>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>> http://www.freeswitch.org
>>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://confluence.freeswitch.org
> http://www.cluecon.com
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org
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