SV: [Asterisk-Users] BAD/GOOD Echo Cancel

[jan.sarin at securia.se]

Im curious. Does anyone have experienced echo-problems that later where solved by buying a hardware-echo canceller such as the Wildcard TE411P?

Regards,
Jan

-----Ursprungligt meddelande-----
Från: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-bounces at lists.digium.com] För James Harper
Skickat: den 6 februari 2006 11:46
Till: Asterisk Users Mailing List - Non-Commercial Discussion
Ämne: RE: [Asterisk-Users] BAD/GOOD Echo Cancel

> 
> virtually all software echo cancelers cannot get double echo removed 
> completly.  It can get the first one but not the second one.  There
are
> instances where you get a 2nd echo, so ...  Asterisk is no exception 
> from this afaik nothing software only based is.
> 
> If you really want good echo cancelation a hardware solution is the
way
> to go.
> 

Just an enquiring mind wanting to know, but how is a hardware solution different to a software solution? The echo cancellers in the Digium hardware presumably just use the same sort of algorithms as the software versions, so it is just that they are dedicated and perform better, that they are closer to the source of the echo, or some other thing that I've overlooked?

Thanks

james
_______________________________________________
--Bandwidth and Colocation provided by Easynews.com --

Asterisk-Users mailing list
To UNSUBSCRIBE or update options visit:
   http://lists.digium.com/mailman/listinfo/asterisk-users