There’s actually several ways to create ‘tape stop’ -effect in FL Studio (Grossbeat, WaveTraveller, etc), but I think the easiest route is to use dBlue’s TapeStop VST effect and of course, it’ll work in other DAWs as well.
Read : Top 15 Free VST Plugins Of 2019!
dBlue TapeStop is a free and easy to use VST effect with adjustable slowdown speed.
Check out the use of this fabulous effect in the video below: