On Sun, Jan 15, 2006 at 04:56:57AM +0100, Pisac wrote: > I'm using bristuffed Asterisk with ISDN/ZAPHFC > I have VERY ugly (outgoing) sound through ISDN/HFC if echocancel=yes in > zapata.conf, but without echocancel I have bad (incoming) echo > Through PSTN/FXO sound is ok with or without echocancel. > > I tried other echo cancellers (in zconfig.h) two times: > > ECHO_CAN_KB1 (this was default) > ECHO_CAN_MARK2 > ECHO_CAN_MG2 > > after any change I compiled (make clean all && make install) all drivers > which are bristuffed, without recompiling Asterisk (should I?), but... > > ... I always have EXACTLY same (ugly) sound and same (appearing of) echo > cancelling. > > Seems to me that echo canceller do not changing no matter what I choose > in zconfig.h. This must be some bristuff echo cancel "patch" to zaptel > source?
The bristuff change to zaptel (the kernel level), other than adding kernel modules is very limited. Echo cancelation in itself is done in the kernel space in Zaptel. > Before I bristuffed Asterisk, I was playing with zconfig.h and I > remember that difference between echo canceller were very obvious. > > Anybody have some knowledge about bristuffed echo cancelling? Bristuff does change chan_zap. Something you could try to verify what I have just written is to try working with a bristuffed Zaptel and non-bristuffed Asterisk. This should work. -- Tzafrir Cohen | [EMAIL PROTECTED] | VIM is http://tzafrir.org.il | | a Mutt's [EMAIL PROTECTED] | | best ICQ# 16849755 | | friend _______________________________________________ --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
