While using a DJ controller (USB or standalone) users may notice that their pitch and volume faders may not respond right away. This is a function called "soft takeover" and it's completely normal.
"Soft takeover" occurs when there’s a discrepancy between the pitch/BPM/volume setting of a deck and the physical position of the fader, leading the software or OS to temporarily “take over” control of the track’s BPM until the pitch fader is returned to its previous position. This prevents sudden, extreme tempo changes when adjusting your tracks’ BPM.
In this video, we'll demonstrate soft takeover, why it is activated, and why this is important in nearly all DJ software & hardware.