I've been working on a fixed point mec3 echo can. The old "mec3" which crashed a lot of peoples machines because it was floating point in the kernel is now available as "mec3-float.h". I'd appreciate any testing / feedback on the new fixed point mec3 echo can. Thanks! Mark
Hey Mark, On Sun, Jun 29, 2003 at 11:55:36 -0500, Mark Spencer wrote:> I've been working on a fixed point mec3 echo can. The old "mec3" which > crashed a lot of peoples machines because it was floating point in the > kernel is now available as "mec3-float.h". I'd appreciate any testing / > feedback on the new fixed point mec3 echo can. Thanks!I've had a lot of problems with the old one. In some cases, the audio on calls turned into noise, and in others the machine became so slow that it took at least a minute for typed characters to be echoed back to me, which, needless to say, froze all calls on that machine as well. I also had problems with MEC3 when dialing out from a TDM40P to ISDN, through chan_modem_i4l, where the audio from me to the caller was lost 10-30 seconds into the call. That did a good job at canceling echo, but it was not really what I had in mind. ;-) The new version doesn't seem to have any of the problems above, but I'd still need to run some more tests. Unfortunately, it doesn't solve the echo-problems I'm having on chan_modem_i4l, where I hear my own echo (the other party doesn't hear an echo), but I haven't been able to solve that with any of the included echo-cancellers. PS: Does this new MEC3 take the amount of taps to use from Asterisk's "zapata.conf" now? I remember it always used 256 taps, while it now, like the others, defaults to 128. "mec3.h" still has 256 as default. Grtz, Oliver
... but it still only works on x86? I get a failure to find asm/i387.h at line 69 of zaptel.c on my ppc box. Iain --On Sunday, June 29, 2003 11:55 am -0500 Mark Spencer <markster@digium.com> wrote:> I've been working on a fixed point mec3 echo can. The old "mec3" which > crashed a lot of peoples machines because it was floating point in the > kernel is now available as "mec3-float.h". I'd appreciate any testing / > feedback on the new fixed point mec3 echo can. Thanks! > > Mark > > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users >
On Sun, 2003-06-29 at 18:48, Borce Stevanoski wrote:> Hi ppl > > I admire to your work. One question > I am trying to figure out what formats in total are supported by *, and i saw > the command "show translation" which popup nice table with source and > destination formats. > Find out most of them - but stll missing the meaning for row/collomn > 8,9,11,12,13 and 14. > I try to find the explenation for this formats - but without sucessI think those are translation costs. For example g.711 to GSM would be one cost while g.711 to MP3 would be much higher. -- Steven Critchfield <critch@basesys.com>