David Wilson
2005-Jun-21 00:37 UTC
[Asterisk-Users] Asterisk and Sirrix PCI4S0 echo cancellation
Hi guys, I'm running a Sirrix PCI4S0 quad BRI card in a box with Asterisk CVS-HEAD (20050614). Something I've come across is that with 'echocancel = yes' in /etc/asterisk/sirrix.conf the echo is unbearably loud - so loud in fact that the echo distorts. To remedy this I've set 'echocancel = no' and disabled the echo cancellation. With the echo cancellation disabled there is still an echo but it is much softer. Any ideas on how I can turn on the echo cancellation again without having the very loud echo back ? Is there some way I could perhaps drop the TX volume out of the Sirrix card ? Perhaps this would help ? Thanks in advance. Kindest regards David Wilson _______________________________ D c D a t a Tel +27 33 342 7003 Fax +27 33 345 4155 Cell +27 82 4147413 http://www.dcdata.co.za support@dcdata.co.za Powered by Linux, driven by passion ! _______________________________ "Computers are not intelligent. They only think they are." -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20050621/1c338000/attachment.htm
On the subject of this in you /var/log/messages do you get errors like this Jun 21 09:38:45 pbxct sshd(pam_unix)[1993]: session opened for user root by (uid=0) Jun 21 09:39:22 pbxct kernel: 00: Unsetting old PCM master PFIC 0 Jun 21 09:39:22 pbxct kernel: 00: Setting PCM master to PFIC 0 IPAC3 Jun 21 09:39:22 pbxct kernel: Slip detected on IPAC3 Jun 21 09:40:02 pbxct kernel: sirrix ipac (3): ipac_handle_interrupt_icd: error, RSTAD = 0x1e not ok! Jun 21 09:40:07 pbxct kernel: Slip detected on IPAC3 email this guy,he wrote a patch to bring down the volume <steve@connection-telecom.com> On Tue, 2005-06-21 at 09:37 +0200, David Wilson wrote:> Hi guys, > > I'm running a Sirrix PCI4S0 quad BRI card in a box with Asterisk CVS- > HEAD (20050614). > Something I've come across is that with 'echocancel = yes' > in /etc/asterisk/sirrix.conf the echo is unbearably loud - so loud in > fact that the echo distorts. > > To remedy this I've set 'echocancel = no' and disabled the echo > cancellation. With the echo cancellation disabled there is still an > echo but it is much softer. > > Any ideas on how I can turn on the echo cancellation again without > having the very loud echo back ? > Is there some way I could perhaps drop the TX volume out of the Sirrix > card ? Perhaps this would help ? > > Thanks in advance. > > > Kindest regards > David Wilson > _______________________________ > D c D a t a > Tel +27 33 342 7003 > Fax +27 33 345 4155 > Cell +27 82 4147413 > http://www.dcdata.co.za > support@dcdata.co.za > Powered by Linux, driven by passion ! > _______________________________ > > "Computers are not intelligent. They only think they are." > > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users