[Freeswitch-users] Voice lag in conference

Tue Jun 16 14:58:03 PDT 2009

Will do, just haven't had the time, yet!

On Tue, Jun 16, 2009 at 2:55 PM, Anthony Minessale <
anthony.minessale at gmail.com> wrote:

> don't forget to read my suggestion too from earlier today =D
>
>
>
> On Tue, Jun 16, 2009 at 4:30 PM, Josh Moon <joshm at wabashcenter.com> wrote:
>
>>  I was able to reduce it considerably.  I can’t say it is completely gone
>> but I am very confident the ~.5 second delay I hear is because of the time
>> it takes my voice to go through the leaps and bounds of the phone company to
>> our server.  I had at least a 3-5 second delay before I experimented with
>> the conference settings.
>>
>>
>>
>> *From:* freeswitch-users-bounces at lists.freeswitch.org [mailto:
>> freeswitch-users-bounces at lists.freeswitch.org] *On Behalf Of *Bradley
>> Brashier
>> *Sent:* Tuesday, June 16, 2009 5:02 PM
>> *To:* freeswitch-users at lists.freeswitch.org
>> *Subject:* Re: [Freeswitch-users] Voice lag in conference
>>
>>
>>
>> I'm not sure I've got the opportunity to do that at the moment, but I do
>> appreciate the point of view of a fellow product user. Were you able to
>> eliminate noticeable lag, or just reduce it to reasonable levels?
>>
>>
>>
>> I'll try to do something similar when I update to the newest trunk as
>> Anthony suggested. My copy is only a week old, but I'll try whatever has a
>> chance of working, and I know you guys have been working on conferencing
>> (the Moderator function couldn't have been timed better for me!).
>>
>> On Tue, Jun 16, 2009 at 12:01 PM, Josh Moon <joshm at wabashcenter.com>
>> wrote:
>>
>> I am not as knowledgeable as the developers that will respond to your
>> question but I had the same problem as you.  Here is what I did to combat
>> the delay:
>>
>>
>>
>> First off I started everything from scratch.  I reinstalled Linux and then
>> I reinstalled FreeSWITCH by creating .deb packages.
>>
>> I then created my own conference profile and set the sample rate to 4000
>> and changed the energy level to 20.
>>
>> I also made sure to test the conference room from phones that were in
>> completely different areas so there wasn’t a chance for feedback or really
>> bad echoing problems.
>>
>>
>>
>> Once I knew the delay was solved I raised the sample rate to 8000.  I
>> tested it to make sure it would work properly.
>>
>>
>>
>> As Michael stated, this could be your network infrastructure but I just
>> wanted to let another FreeSWITCH user know what I did to try and stop the
>> voice delay.
>>
>>
>>
>> *From:* freeswitch-users-bounces at lists.freeswitch.org [mailto:
>> freeswitch-users-bounces at lists.freeswitch.org] *On Behalf Of *Bradley
>> Brashier
>> *Sent:* Tuesday, June 16, 2009 1:52 PM
>> *To:* freeswitch-users at lists.freeswitch.org
>> *Subject:* [Freeswitch-users] Voice lag in conference
>>
>>
>>
>> I'm creating a conferencing product for use in a system with theoretically
>> several hundred concurrent calls. I'm using FreeSwitch to create this
>> product, but am not only new to FreeSwitch, but also the entire telecom
>> industry as well as Open Source projects in general (I'm a recovering BIOS
>> guy).
>>
>> I've got a bare-bones conference up and running on the server, including a
>> handshake and a couple of features, and am using the default packages from
>> the current trunk, but I've noticed that voice lag is a pretty big issue.
>> Common lag times are several hundred milliseconds, and I've heard as long as
>> a second. It seems to be at least marginally specific to individual phones
>> -- certain phones have longer lag than others even on the same call.
>>
>> My question is really about what my options are. Is this just a part of
>> SIP? Of conferencing? Of FreeSwitch? Are there things I can prune or slim
>> down that will help? Is this a common issue? If it's common, is it expected
>> by the marketplace?
>>
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>
>
>  --
> Anthony Minessale II
>
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