Hello Christoph,
   I have a
problem with my mixer that is I can't record line
 input without simultaneous playback. 
 AFAIK: You can set your card to immediate output of the incoming signal. 
 
Ok, but I don't want it.
What I want to achieve is :
[soundcard out] --> [fx processing] -> [soundcard in] -> [soundfile]
But the problem is there is a loop like this :
        ___________________________________
       /                                   \
      V                                     |
[soundcard out] --> [fx processing] -> [soundcard in] -> [soundfile]
  In this case, however, the card ensures that no
capturing is
 possible to avoid feedbacks. 
I don't get it. If there is output, there is feedback, isn't there ?
  Disable the direct throughput and perhaps you'll
be done. 
Yes, that's what I'd like to do and that's the purpose of my message. But I
don't know how. I think something is misconfigured in my audio system.
--
Alex