[Freeswitch-users] Strange media behavior on WebRTC

Oleg Stolyar olegstolyar at gmail.com
Sat Jun 7 07:14:59 MSD 2014 

Anthony,

Another update - I thought that the only thing my original installation and
the Debian VM had in common was that both were VMs.  So I went ahead and
installed FreeSWITCH on my local Windows machine.  Same problem is
happening here as well.

I am extremely curious what's different between your installation and my
three setups (CentOS, Debian and Windows) that accounts for the difference
in this behavior.  Could you tell me what machine/OS you are using?


On Fri, Jun 6, 2014 at 1:06 PM, Oleg Stolyar <olegstolyar at gmail.com> wrote:

> Hi Anthony,
>
> I dug further and I can reproduce the issue on a completely different VM
> (Debian on Windows host).  I installed the latest FS master and even
> switched to the vanilla conf to eliminate the possibility of my config
> causing this issue.
>
> It's still happening.  If you have time to look into this some more, I'll
> be happy to upload my whole VM for someone to take a look at.
>
>
> On Wed, Jun 4, 2014 at 4:50 PM, Oleg Stolyar <olegstolyar at gmail.com>
> wrote:
>
>> Yep it's the same.
>>
>> Thank you
>> Oleg
>> On Jun 4, 2014 4:05 PM, "Anthony Minessale" <anthony.minessale at gmail.com>
>> wrote:
>>
>>> What if you play an audio file? is it the same?
>>> I can only guess really.
>>>
>>>
>>>
>>> On Wed, Jun 4, 2014 at 10:25 AM, Oleg Stolyar <olegstolyar at gmail.com>
>>> wrote:
>>>
>>>> I tried this:
>>>>         <action application="set" data="timer_name=soft"/>
>>>>         <action application="playback"
>>>> data="tone_stream://%(1000,0,600)" />
>>>>
>>>> Didn't help unfortunately (unless this is the wrong syntax for setting
>>>> the variable).  Completely agreed on the AWS instances - in fact we started
>>>> on an older m1 instance and the voice quality was pretty bad and there were
>>>> frequent delays.  Then we switch to an m3 and it was much better.
>>>>
>>>> Any advice on setting enter-sound per member?  Or setting a
>>>> no-enter-sound flag - similar to the nomoh flag?
>>>>
>>>>
>>>>
>>>> On Wed, Jun 4, 2014 at 7:39 AM, Anthony Minessale <
>>>> anthony.minessale at gmail.com> wrote:
>>>>
>>>>> Try setting the channel var timer_name=soft before playing the beep.
>>>>>  It may be jittery media flow causing your problem.
>>>>> My only advice on amazon is use the more expensive one because the
>>>>> lower cost ones are not reliable for cpu time.
>>>>>
>>>>>
>>>>>
>>>>> On Tue, Jun 3, 2014 at 10:30 PM, Oleg Stolyar <olegstolyar at gmail.com>
>>>>> wrote:
>>>>>
>>>>>> OK, thanks.  It's still happening with the latest master, so I have
>>>>>> to assume that this is something to do with the AWS VMs.  It would not be
>>>>>> the first time strange things happen there.
>>>>>>
>>>>>> I was trying to work around the problem and noticed that if instead
>>>>>> of playing the beep using playback app before placing the user into the
>>>>>> conference, I make the beep the enter-sound of the conference, the problem
>>>>>> does not happen.
>>>>>>
>>>>>> However, I need to only play this sound for users joining the
>>>>>> conference from one dialplan but not from another.  I cannot find a way to
>>>>>> do it.  I looked at
>>>>>> <action application="set"
>>>>>> data="conference_enter_sound=silence_stream://10"/>
>>>>>> but it changes the enter sound for the conference for everyone, so
>>>>>> anyone entering after the user who set this up will hear the same sound.
>>>>>>
>>>>>> Is there a way to assign conference params per user (like member
>>>>>> flags)?
>>>>>>
>>>>>>
>>>>>> On Tue, Jun 3, 2014 at 12:25 PM, Anthony Minessale <
>>>>>> anthony.minessale at gmail.com> wrote:
>>>>>>
>>>>>>> If you opt to use master, ALWAYS use latest master since that is the
>>>>>>> nature of master.  I have no idea if your problem is related to those
>>>>>>> things but the server I pointed you to test is running basically latest
>>>>>>> master.
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On Tue, Jun 3, 2014 at 2:07 PM, Oleg Stolyar <olegstolyar at gmail.com>
>>>>>>> wrote:
>>>>>>>
>>>>>>>> Thanks Anthony!
>>>>>>>>
>>>>>>>> I tried adding this var and also tried uncommenting the
>>>>>>>> suppress_cng line in my sip profile.  It did not seem to make a difference.
>>>>>>>>  I pointed my client code to your sample and it worked fine - no noise, so
>>>>>>>> it's not a problem with the client side.
>>>>>>>>
>>>>>>>> Do I need to upgrade to the latest master?  I am using master from
>>>>>>>> 5/22 version 1.5.13b
>>>>>>>>
>>>>>>>> Would it help if gave you my test ws server and sip address so you
>>>>>>>> could reproduce this?
>>>>>>>>
>>>>>>>> Is it possible that the problem is with my AWS instance or CentOS
>>>>>>>> 5.9?
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> On Tue, Jun 3, 2014 at 11:23 AM, Anthony Minessale <
>>>>>>>> anthony.minessale at gmail.com> wrote:
>>>>>>>>
>>>>>>>>> I set up your test ext here:
>>>>>>>>> https://webrtc.freeswitch.org/sipjs/index.html#8765
>>>>>>>>>
>>>>>>>>> And it seems to work.
>>>>>>>>>
>>>>>>>>> Try this in vars.xml
>>>>>>>>>
>>>>>>>>> <X-PRE-PROCESS cmd="set" data="suppress_cng=true"/>
>>>>>>>>>
>>>>>>>>> I don't think the silence suppression works very well in the
>>>>>>>>> browser.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Mon, Jun 2, 2014 at 7:23 AM, Oleg Stolyar <
>>>>>>>>> olegstolyar at gmail.com> wrote:
>>>>>>>>>
>>>>>>>>>> In case it was not clear from the previous email - this only
>>>>>>>>>> happens with conferences.  If after the beep, instead of placing the call
>>>>>>>>>> into a conference, I just play some music, there are no problems.
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> On Sat, May 31, 2014 at 5:46 PM, Oleg Stolyar <
>>>>>>>>>> olegstolyar at gmail.com> wrote:
>>>>>>>>>>
>>>>>>>>>>> Hi guys,
>>>>>>>>>>>
>>>>>>>>>>> I am connecting to FreeSWITCH using WebRTC and after a user
>>>>>>>>>>> calls in, I play a beep and put them into a conference.  Two strange things
>>>>>>>>>>> happen after that:
>>>>>>>>>>>
>>>>>>>>>>> 1. There is a noise in the user's leg that someone described
>>>>>>>>>>> like a wind in the tunnel.  The noise lasts for several seconds, then the
>>>>>>>>>>> user can hear the hold music.  The noise does not seem to happen if I don't
>>>>>>>>>>> play the beep before the conference.
>>>>>>>>>>>
>>>>>>>>>>> 2. About 3 seconds into the call, there is another very short
>>>>>>>>>>> beep - like a small portion of the original beep that the user hears.
>>>>>>>>>>>
>>>>>>>>>>> This absolutely does not happen with softphones - only with
>>>>>>>>>>> WebRTC.  I tried it with Chrome and Opera - same thing is happening on both.
>>>>>>>>>>>
>>>>>>>>>>> I tried increasing the answer delay from 2 seconds to 3 and the
>>>>>>>>>>> noise now happens more rarely but the extra beep is still there almost
>>>>>>>>>>> every time.  I am using JsSIP 3.0 but since it only handles signalling I
>>>>>>>>>>> don't think the problem is with the JS library.
>>>>>>>>>>>
>>>>>>>>>>> Has anyone run into this?  Any advice?
>>>>>>>>>>>
>>>>>>>>>>> Here is the relevant excerpt from my dialplan.
>>>>>>>>>>>
>>>>>>>>>>> <condition field="destination_number" expression="^conf-(\S+)$">
>>>>>>>>>>>         <action application="set" data="answer_delay=3000"/>
>>>>>>>>>>>       <action application="answer"/>
>>>>>>>>>>>         <action application="playback"
>>>>>>>>>>> data="tone_stream://%(1000,0,600)" />
>>>>>>>>>>>         <action application="conference" data="$1 at default"/>
>>>>>>>>>>> </condition>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> _________________________________________________________________________
>>>>>>>>>> Professional FreeSWITCH Consulting Services:
>>>>>>>>>> consulting at freeswitch.org
>>>>>>>>>> http://www.freeswitchsolutions.com
>>>>>>>>>>
>>>>>>>>>> 
>>>>>>>>>> 
>>>>>>>>>>
>>>>>>>>>> Official FreeSWITCH Sites
>>>>>>>>>> http://www.freeswitch.org
>>>>>>>>>> http://wiki.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
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> _________________________________________________________________________
>>>>>>>>> Professional FreeSWITCH Consulting Services:
>>>>>>>>> consulting at freeswitch.org
>>>>>>>>> http://www.freeswitchsolutions.com
>>>>>>>>>
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>>
>>>>>>>>> Official FreeSWITCH Sites
>>>>>>>>> http://www.freeswitch.org
>>>>>>>>> http://wiki.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://wiki.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
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> _________________________________________________________________________
>>>>>>> Professional FreeSWITCH Consulting Services:
>>>>>>> consulting at freeswitch.org
>>>>>>> http://www.freeswitchsolutions.com
>>>>>>>
>>>>>>> 
>>>>>>> 
>>>>>>>
>>>>>>> Official FreeSWITCH Sites
>>>>>>> http://www.freeswitch.org
>>>>>>> http://wiki.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://wiki.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
>>>>>
>>>>>
>>>>>
>>>>> _________________________________________________________________________
>>>>> Professional FreeSWITCH Consulting Services:
>>>>> consulting at freeswitch.org
>>>>> http://www.freeswitchsolutions.com
>>>>>
>>>>> 
>>>>> 
>>>>>
>>>>> Official FreeSWITCH Sites
>>>>> http://www.freeswitch.org
>>>>> http://wiki.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://wiki.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
>>>
>>>
>>> _________________________________________________________________________
>>> Professional FreeSWITCH Consulting Services:
>>> consulting at freeswitch.org
>>> http://www.freeswitchsolutions.com
>>>
>>> 
>>> 
>>>
>>> Official FreeSWITCH Sites
>>> http://www.freeswitch.org
>>> http://wiki.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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