How do you fake echo for testing purposes then?
Regards, Dean Collins Cognation Pty Ltd [EMAIL PROTECTED] +1-212-203-4357 Ph +1-917-207-3420 Mb +61-2-9016-5642 (Sydney in-dial). > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:asterisk-users- > [EMAIL PROTECTED] On Behalf Of Nic Bellamy > Sent: Thursday, 15 February 2007 3:53 PM > To: Asterisk Users Mailing List - Non-Commercial Discussion > Subject: Re: [asterisk-users] The High Performance Echo Canceller (HPEC) > > Wireless wrote: > > Does anyone know if the HPEC will work on a Sangoma A200 / 2 port FXO card? > > (I'm assuming so as it still uses Zapel) I've 2 PSTN lines one of which I > > cannot get rid of the echo, I've tried a 2GHz machine as apposed to my > > normal P3 650MHz and this made no difference. Would the 650Mhz be enough > to > > run HPEC on one line (I assume only needing one licence) > > > It should work, providing all the Wanpipe stuff is ready to work with > Zaptel 1.2.13. > > As far as performance, you should be able to get one, maybe two channels > of 1024 tap cancellation on the P3, but I'd advise careful testing, > perhaps even using oprofile for a while to keep an eye on what's using what. > > You also have to watch out extra carefully due to the following: HPEC > works in "sparse" mode, meaning it can cover 1024 taps, but just cancels > echo in the parts where there is echo - hence CPU usage will likely > change quite a bit with different echo paths - ie. a simple single > reflection path will use less CPU than a complicated path with more than > one reflection. > > Cheers, > Nic. > > -- > Nic Bellamy, > Head Of Engineering, Vadacom Ltd - http://www.vadacom.co.nz/ > > _______________________________________________ > --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 _______________________________________________ --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
