Sangoma A200 w/HW EC and 2.6 with OSLEC
Submitted by fredr on Mon, 05/12/2008 - 1:08pm.
I'm looking at the configuration of the A200 card with hardware echo cancellation. The config files shows it active but at the same time the Zaptel shows OSLEC active.
Zaptel Version: 1.4.10
Echo Canceller: OSLEC
I don't think both should be active or am I missing something?
If I need to shut down OSLEC what is the best method?
Thanks,
Fred
Something not working right then....
Tue, 05/13/2008 - 6:44pm
I rebuilt my Trixbox server upgrading the hardware and TrixBox to 2.6. I moved the Sangoma A200 with hardware echo cancellation card to the new box and all works just fine except for analog lines volume. I researched the issue here and came up with a number of people having a similar problem. It seems that the analog line volume gets depressed by OSLEC after having all of the echo removed via the hardware cancellation. Turning up the volume in zapata.conf does not help and makes the issue even worse to the point that received audio is very low and cuts in and out sporadically.
Attempts to make a difference:
Turned off echo cancellation in zapata and set tx/rc gain to 0 - same issue low volume and cut in and out. Seems like OSLEC is active even when turned off in zapata.
Turned off Sangoma hardware echo cancellation turned on echo cancellation in zapata - volume good no echo in simple test.
It is obviously an interaction with OSLEC and Sangoma HWEC. Since the Sangoma is a superior HWEC solution I would like to disable OSLEC or revert to a less aggressive EC.
Hi,
This appears to be
Wed, 05/14/2008 - 9:11am
Hi,
This appears to be something with our EC because when you set both echocancel=no echocancelwhenbridged=no then OSLEC should not be running. Please send an email to techdesk@sangoma.com with a quick summary of what the issue is and we will trouble shoot this further with you.
Marc
Sangoma Technologies
Hi,
Please send an email to
Tue, 05/27/2008 - 1:50pm
Hi,
Please send an email to techdesk@sangoma.com with a quick summary of what the issue is and we will trouble shoot this further with you.
Marc
Sangoma Technologies
When I emailed this address,
Wed, 07/02/2008 - 9:25am
When I emailed this address, I got a konrad@sangoma.com email saying that he is out of the office. What do I need to do to resolve this?
Hi,
Yes Konrad is on
Wed, 07/02/2008 - 1:48pm
Hi,
Yes Konrad is on vacation and techdesk@sangoma.com simply sends the email to all the Tech Support Engineers here. So his auto reply is simply just responding back and saying he is on vacation, but the email goes to other support engineers so it will be answered.
Marc
Sangoma Technologies
Hi
If you are having the
Wed, 07/09/2008 - 6:07am
Hi
If you are having the same problem then please send an email to techdesk@sangoma.com with a quick summary of the issue and we will trouble shoot this further with you.
Marc
Sangoma Technologies
Member Since:
2006-06-15