Asus Xonar DS - Manual (Page 39)

33 ASUS Xonar DS
The following message appears when Mic Echo is selected:
This message implies that the recording device will be set according to your
requirement. With Mic, you will only record audio source from microphone with
echo effects; but you are able to record all audio sources from Wave, Aux, and
Mic with microphone echo effect. Click
OK to accept it or Cancel if you want
to enable it later. Checking Don’t remind me again and this message will not
show up again.