First, thank you.

IvanB - I got Total Recorder now and also tried it, but at the moment I'm not yet able to save what seems to be recorded. I'm able to make my computer hang instead. Is that an undocumented feature of the evaluation version or do I have to know some special trick? Aside of that, the intention of the program (as far as I can see from the documentation) seems to be quite good, if I ever get it working it might be at least some good improvement regarding the second problem I mentioned.

pict - I'm not so sure that I need what is a multitrack recording program. There is no need to record several tracks at the same time, just one single one, but controlled by the playback of another one.

Pseudo code:

open wav file IN for input
open wav file OUT for output
while not end of IN
get sample S1 from file IN
output S1 to sound card (headphone)
get sample S2 from sound card (mike)
output S2 to file OUT
end while
close OUT
close IN

That's all. In practise this isn't that simple, otherwise I would have done it long ago. I would very much like to do it if I could only control my sound card, but I can't. It would allow me to do anything I want. I do NOT want to record more than one track at a time. (Who wants to? Only people who have to record the common performing of several players. I'm alone.) What I will get are as many wav files as I want, each one with one track, all of the same length, and with the music exactly in time. Mixing them is simple.

Musicman - Thanks for the tip. I know CoolEdit, but I didn't know of some studio plug-in.

Ian - of course you're right. That's why I said "virtual". To my own ears of course. I did a recording test and was quite impressed by the quality. Maybe you'll be interested in that I own a computer with the sound card integrated on the main board. This allows an engineer to provide many shielding measures not available to one who never knows where his product is going to be plugged in. Maybe they simply did...

And if ever the quality seems too poor to me I can still consider improving my hardware. So thanks for your hints.

Joerg