On Tue, 30 May 2006, Christian Victor wrote: > >> Well - the Junghanns does the echocancel in software and the Sangoma > >> A104d does it in hardware. > > > > Alright, i just had a look at their product lineup. It seems as not only > > the A104d but also the low end of their E1 cards (i.e. A101) comes with > > this onbard echo canceller (EDAC), right? > > No - the A104d and A108d are Sangomas only E1 cards with hardware echo > cancel. > > The analog A200 has (optional) hardware EC too. > > >> So on the Sangoma echo cancel does not affect CPU performance while on > >> the Junghanns it does. > > > > And in terms of quality? Does one of them perform noticable better than > > the other. > > Well - I am not sure how the EC in the Jun ghanns driver is implemented. > If you have unlimited CPU power (or the hardware EC is very bad > implemented) it could be of the same quality. > > In fact the Sangoma has 128ms echo cancel per channel. As far as I know > neither the Digum harware echo cancel nor the available software > solutions offers this.
I thought the Eicon cards were the only ones with 128ms echo-cancel ;-) Anyway, what time frame do the software implementations use? Even with enough CPU power, do these software solutions provide as good results as a DSP on board? Armin _______________________________________________ --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
