[asterisk-users] tuning software echo cancellation

[Tzafrir Cohen]

On Thu, Jun 10, 2010 at 07:25:43PM +0100, Gordon Henderson wrote:
> On Thu, 10 Jun 2010, Jeff LaCoursiere wrote:

> > Isn't OSLEC on by default?  

Sadly it's not included in the default DAHDI. Several distros include
it. Those also set it as the default EC for system.conf generated by
dahdi_genconf. E.g.

http://svn.debian.org/viewsvn/pkg-voip/dahdi-tools/trunk/debian/patches/echocan_oslec?view=markup

> 
> I compile up stuff from scratch, so a lot might depend on your 
> distribution..
> 
> You need the module dahdi_echocan_oslec loaded, and in 
> /etc/dahdi/system.conf, I have:
> 
>    echocanceller=oslec,1-4

Actually, dahdi will modprobe the module 'dahdi_echocan_foo' if you have
the line 'echocanceller=foo,<channels>' . So you need the module
avaialble, rather than loaded.

-- 
               Tzafrir Cohen
icq#16849755              jabber:tzafrir.cohen at xorcom.com
+972-50-7952406           mailto:tzafrir.cohen at xorcom.com
http://www.xorcom.com  iax:guest at local.xorcom.com/tzafrir