Trying to Record A Mix

Hi I want to record a mix that I am doing on Audacity. I was able to do this using the internal microphone but there is a lot of air in the recording. When I tried to do this by turning off the internal mic, it starts recording but the sound isn’t registering as the levels remain at zero. What am I doing wrong? I want to make note in advance that I may be the most computer illiterate person on this board so be gentle and clear. Thanks.


If you mean that you want to record sounds that are playing on your computer, then there is an article about this in the manual (note that on some computers this is not straightforward):