I’m trying to record a mix from my decks, with a Pioneer DJM 600 mixer through Focusrite Scarlett Solo into my laptop using Audacity.
At first I was getting a signal coming into Audacity but when I hit record the audio was just noise. That was with a stereo cable, from the Scarlett into Rec Out in the mixer.
Now theres no signal at all coming into Audacity.
I’ve tried to change all the audio settings in Audacity and still nothing. I don’t know what else to try.
Am I missing somethng?
Thanks
The Scarlett Solo has an instrument input and a mic input. You’ll get one on the left and the other on the right. You need left & right line inputs. The instrument input should be OK but a line-level signal will overload the mic input. 
I don’t expect this to ever work correctly.
But, a couple of things you can check -
Are the LEDs showing a signal? Green is good and red is overload.
When you plug headphones into the Focusrite and set it for direct monitoring, are you getting sound? Good sound? (In direct mode the computer isn’t involved.)
If everything seems OK, try Windows Listen To This Device to make sure Windows is getting a signal. (You don’t need Audacity or any application for this.)
Make sure Windows “enhancements” are turned OFF. They can mess-up the sound in weird ways before it gets into Audacity.
Focusrite also has Focusrite Control software that MIGHT be sitting in-between the hardware/drivers and Audacity.