[PlanetCCRMA] multiple card synching

linux_chaos linux_chaos@yahoo.de
Thu Feb 24 08:09:01 2005

hi michele,

i am using an ews88mt. i did not have the problem yet, because i only
use that one card. but as far as i understood, the "original terratec
ews-sync" does exactly the same as shown at the posted link. so i think
it would not help you, to try that soldering thing. perhaps the shown
alsa-configuration could help you, after you connected and "jumpered"
the "original terratec ews-sync" ...

but i am not an expert, perhaps i understood wrong ....

greetings l.chaos

Am Don, 2005-02-24 um 12.01 schrieb Michele Spinolo:
> Hi guys,
> I'm running a system based on PlanetCCRMA FC1 2.4.26 kernel, with 2 Terratec
> EWS88D and 1 Terratec EWS88MT installed.
> This system is connected to a source which is capable of sending audio data
> on 3 stereo s/pdif coaxial cables, wich are plugged into s/pdif coax inputs
> of my 3 cards.
> The three s/pdif cables should be synched: in fact the s/pdif transmitter is
> only one for all 3 s/pdif outs on the source.
> Now I use this system for real time convolution running BruteFir: everything
> runs fine while I use only one card, but when I run convolution on more than
> 1 card I got some "clicks" on output.
> These "clicks" are often releated to not clock synched cards, but they
> should be synched: they are setted to get sync signal on s/pdif input.
> EWS cards allow to set a master card and up to 3 slave cards, where slave
> cards get sync signal from the master card: unluckily this is not possible
> under Linux, but only under windows.
> So I was wondering if someone could give a hint to try to solve the problem
> before I keep the solder in my hand and try to follow this guide:
> http://www.djcj.org/LAU/quicktoots/toots/el-cheapo/
> Thanks!
> Michele
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