Hy, for home practice, I'm still using my old setup:
HP 250 G7
Numark mixtrack pro 3 with downloaded key mapping
Traktor pro 3 orginal, I use second licence (got with S4 mk3)
Problem is weird - when I unplug my power suply from laptop, or connect it to laptop - my sound from traktor pro crashes. It gets weird, lot of noise, crackling etc.
Then I just need to plug/unplug my dj controller, and it reset sound to normal.
I tried to change USB cable, but problem is just when I'm plugin or unplugin my power suply.
Maybe is laptop ready for some service?
It's old 6 month, and all left connectors (usb, hdmi, power suply) is really bad and have bad connection.
But what power supply have with audio output and sound drivers?