[Freeswitch-users] Conference talk detection

Dan Lane null at invalid.name
Tue Jan 26 08:56:48 PST 2010


On Tue, Jan 26, 2010 at 3:22 PM, Anthony Minessale
<anthony.minessale at gmail.com> wrote:
> We use a conference with energy detection on 12+ hours a day and I don't
> recall losing any of the audio.
> The instant you breach the level that same packet is sent, and you have to
> have several consecutive packets below the level to stop.

Interesting could you post the conferences.xml config for that
particular conference? I have yet to find a way of using energy
detection that doesn't miss the first few ms of sound, for example the
word "Testing" often comes out as "esting" perhaps with the tail end
of the T coming across.

It's not a problem when everyone is a native english speaker but when
on a conference containing people with a poor grasp of english or
people who reply with lots of quick utterances such as "yup"

> My guess is you are talking to something lame like a Sonus who is resetting
> its jitterbuffer when you start talking again.

In production it's hitting Cisco gateways but I've experienced this in
a lab environment consisting of a mixture of Snom 360, 820 and Polycom
IP6000 devices.

What would be great is to have start/stop talk events while still
always sending audio from participants to the conference




More information about the FreeSWITCH-users mailing list