I'm planning on buying a mixer which will be able to digest several microphones. It has struck me that connecting the mixer to a computer (through USB) I may not be able to record each microphone individually. Recording is done with Audacity. Would this epiphany of mine bear any weight? I have read about a multichannel recording device on this site and was wondering if there are any other solutions in concord with a mixer. Any insight appreciated.
Of course there are, any mixer that comes with an audio interface is what you are looking for.
But they can be pricey ! You might be better off having an analog mixer and a separate audio interface. but if you can't and actually need to go mixer + interface, a walk to your nearest music store could find you something that fits your needs.
added by Roman, see comments
The mixer I'm interested in (see comments) has stereo output, which means it can put out sound through two channels. This means you individually send input to one of the channels. For example, if you are recording with four microphones, you can have two left (1) and two right (2) or one left and the rest right.