Tank you so much, Radio42!!!
You really made my day. Now I understand the behaviour.
One last question:
I didn't found a list of fully supported soundcards.
In the datasheets of soundcards is written: "full-duplex"
But this doesn't mean from my point of view, that the driver implements them as separat devices, right?
Would you give me a tip, which card to buy (under 200€). I need the same amount of Line-In and Line-Out.
Do you know one of the following cards?
- M-Audio Delta Audiophile 2496, PCI
- M-Audio Delta Audiophile 192, PCI
- TerraTec Aureon 5.1 PCI (as a sheep alternative with only one Line-In)