bingo, built-in input, not microphone. (has a drop down). recording one mic on left and the other on the right.
I think that’s how I should do it, then get all the sound equalized, and put it together in the end.
Built-in Input should be the stereo connection with the thin black circle and two black arrows on the side of your Mac.
http://www.kozco.com/tech/audacity/pix/MacLineIn.jpg
Make sure the plug is all the way in.
Two good troubleshooting techniques:
– Control-Click on the red Audacity sound meters (you did make them really big, right? I’ll wait while you do that) [waiting] and click Start Monitoring.
That will put the meters in Monitor Mode where they sense Audacity’s input without you having to make a formal recording.
– Scratch the sensitive fronts of your microphones to tell which ones are actually being recorded. The built-in microphone on a 15" Macbook Pro is behind the grill just to the left of the left-hand Fn and Control keys. Different Macs are in different places.
When you scratch the fronts of the microphones on your mixer, do the two flashing light mixer sound meters light up first left and then right?
You can’t do this stuff with your rears. The sound meters are Reeeeeely important.
Koz
I got it all working. sounding good too. I did as you said, (big sound meter). It was good (except for her little dog, who we were stuck with. luckily he was not a yapper, but did hit the stand a few times). all and all, not too bad of an effort. But then major problems.
I save it at the end, but when I got home, I was going to make a back up file, I couldn’t fine it!!!
I started a new thread due to the new subject on the mac forum. https://forum.audacityteam.org/t/lost-long-session/29549/1
please help
After reading through this post I’m confused. Why did you not get the PV 6 USB mixer? Or did you and thus I’m even more confused 
This discussion ended in May last year, so it is unlikely that anyone can be bothered to read through the 5 pages to provide an answer. However, Koz already answered that in this post: newbie needs both immediate and longer term help - #12 by kozikowski
Hmmm… Missed that. Must have been the 5 pages - LOL
Although I think I started somewhere in the middle of the post.
It came up on a google search.
Thanks for the reply.
I’ll have to look back and see if I can find it.
Well looked again didn’t see where it was answered. ??
As I said, here: newbie needs both immediate and longer term help - #12 by kozikowski
Some background information about overdub recording here: Audacity Manual
Oh ok - Sorry Steve - missed the link.
Not sure why you wouldn’t be able to overdub.
I’ll have to check into that.
I’ve used 2 channel interfaces and haven’t had any trouble adding additional overdubed tracks.
Thanks again!