[Telepathy] change speexenc settings for empathy

[Alexey Fisher]

Hi
Am Freitag, den 08.04.2011, 11:42 -0400 schrieb Olivier Crête:
> Hi,
> 
> On Fri, 2011-04-08 at 17:19 +0200, Alexey Fisher wrote:
> > vbr=1
> > # enable variable bitrate 
> 
> This may not work so well if you are near the limit of what the network
> can do.. Sine you'll get drops when the bitrate gets higher...

here we can use abr option. It do exactly what you wont from bitrate
option + reduce bitrate if we can.

> > dtx=1
> > # do not send any packets on silence
> > # see Bug https://bugzilla.gnome.org/show_bug.cgi?id=646474
> 
> This gives you the impression that the bitrate is lower because you
> don't send why not speaking. But it doesn't change the maximum bitrate
> (when speaking) which is all that really matters for quality..
>
> It will also break if WMM is enabled, in that case, the wireless router
> only sends out frames when it receives one, so you have to send
> continuously to keep on receiving.

My fault in description. It send about 2 packets/sec to keep connection.

> > nframes=4
> > # allow better compression and bigger packet size. It reduce network
> > # traffic to 13 packets/sec. (with default options ~50 packets/sec).
> > # the value bigger than 4 will introduce stuttering. 
> 
> This will increase latency, but should definitely improve compression.
> But it gives less leeway to the jitterbuffer to do its thing. Maybe we
> can increase to 2 which is already 40ms.. 4 is 80ms which is way too
> much (the default jb is 100ms in Empathy).

I'll try it.

Are there any way to change the settings for empathy? I tryed to add
speexenc in element-properties file, but it looks like without any
effect.

Regards,
	Alexey