Hey guys, I’m new here and I just need some help with using Audacity and my external USB soundcard, this is the one I’m using:
https://s.s-bol.com/imgbase0/imagebase3/large/FC/7/9/1/7/9200000118477197.jpg
I’m using a Macbook Pro without a build in microphone input and I want to record with Audacity to digitalize my Vinyl records using my Pioneer DJM-800 DJ mixer. For that I use a Red/White cable to mini jack from the mixer’s recording output. The mini jack plug goes in the microphone input on the external USB soundcard that I’m using. Now that I plug in the USB soundcard to my Macbook, Audacity automatically recognizing the soundcard so I have that one selected. Now that I press record and playing some audio, Audacity doesn’t giving any signal from audio signs, it stays at one straight line when recording.
Now when I go to my audio settings on my Macbook Pro, I see that my laptop is recognizing the sound that I’m playing that I wanna record so there is no malfunction to my soundcard, it seems that this USB soundcard is unsuitable for working with Audacity. I also checked my Audacity preferences and everything seems fine. Is there somebody over here that experienced the same problem as I have? I haven’t tested it out on a Windows computer so far so I don’t know if this issue won’t work because of my Macbook.
Hope somebody can help me out. 
