You can create this version using free software like Audacity or online tools. 1. Prepare Your Audio

: Go to Effect > Pitch and Tempo > Change Speed .

: Set the percentage between -15% and -20% . A playback speed of roughly 0.8x to 0.85x is standard for this style. 3. Add Reverb for Atmosphere

To get that signature "slowed" feel, you need to reduce the speed, which also lowers the pitch. : Highlight the entire track (Ctrl+A).