MC wrote: rpnfan wrote: oli77sch wrote:
Loopback is primarily meant for recording the output mix or to send it to another software. The signal which is looped back to an input is not available in Totalmix again.
Thanks a lot. Very helpful answer. That would be a perfect introduction for in the manual as well.
Manual quote, first paragraph:
TotalMix includes an internal loopback function, from the Hardware Outputs to the recording software. Instead of the signal at the hardware input, the signal at the hardware output is sent to the record software. This way, submixes can be recorded without an external loopback cable. Also the playback from a software can be recorded by another software.
The crucial added sentence is "The signal which is looped back to an input is not available in Totalmix again." which was not clear to me from the manual and also not from the block diagram. I think that would be a great addition in the manual to clarify the limitations of the loopback function.
MC wrote: rpnfan wrote:
Unfortunately I can not read a block diagram. I tried enabling EQ for record, but that did not change anything. I am still not sure if/ how it is possible to apply an EQ for a S/W playback channel.
So you can not see in the diagram what is also clearly stated in the text - that you have to use the OUTPUT EQ when Loopback is active?
I do not understand why that is relevant to my question at all, when for Totalmix a loopback signal is not accessible!? That was what I wanted for my specific use case. That OUTPUT EQ needs to be enabled would _then_ be the second part, which surely I understand.
But I do not fully understand the block diagram like already stated. If we would have a look together that would be surely explained very easily and quick, but for me several things are not self-explaining. I have a pretty good scientific understanding and logic thinking, but absolutely no experience with that type of diagrams. 
Why is it so hard for you to understand that some RME users have a very different background to yours and therefore some things are not evident to them!?
 For example when loopback is on (like shown on page 67) the signal does never be able to reach HW INPUT, so seems always disconnected. I now think that HW input is not only the square (top left), but the complete left half of the diagram!? But for me it is not self-explaining where the "scope" of the HW INPUT is in that graph. I could imagine a transparent layer (for example in light gray) to mark that clearly, but because that is not implemented it seems not to be needed!?
Also it seems that from the HW OUTPUT Channel 1 (bottom right) the signal now can go through the EQ, but the figure states that EQ for Record would be OFF. I do not understand the logic here. Or is that an error and should read HW OUTPUT EQ ON?
It would be great if you would not imply that your customers are dumb, just because questions are open. Dumb is only when you are not thinking for yourself and one just swallows and repeats what someone else says. Not understanding (yet) why or how something works is part of the learning process!