[asterisk-users] Echo...

[Matthew Fredrickson]

On Jan 12, 2007, at 12:42 PM, Ken Williams wrote:

> Well here's what I did to finally get some sort of ground.  I was going
> to move the card to a different slot, when I opened up the box I saw
> there was a power split between the connector & the card to feed a fan
> in the system.  I removed this split so it was straight in from the
> power supply.  I then moved the card to another slot, and between the
> two, echo cancellation actually started to work.
>
> I played with the settings a bit, then got your e-mail and noticed I 
> was
> in fact using the wrong fxotune.  I used the new version, switched back
> to MG2 from MARK2 and removed aggressive suppressor.  Now I am
> practically echo free.
>
> Thanks for the tips, any ideas why either the power split or the card
> slot would keep add echo, or at least make it so my echo settings
> weren't taking?  As soon as I modified the hardware the echo was vastly
> improved, then the minor modifications mentioned above wrapped it up.

Don't know.  That definitely sounds weird though.  I'm laying my bets 
on using the right version of fxotune helped a lot.  Possibly some user 
error, or something like that, or maybe you didn't have the right 
version of zaptel loading on your machine (it was loading 1.2, but you 
should have been loading 1.4 with the newer echo canceler).

Matthew Fredrickson