Friday Night Funkin' utilizes a simple audio engine where tracks are separated into layers (usually Instrumental and Vocals). This layering allows the game to dynamically mute the vocal track when the player misses a note, simulating a "break in the song."
However, modders often face a scenario where they possess a fully mixed audio file (mp3/ogg) but lack the raw project files (stems). To create an authentic FNF experience, the vocals must be isolated or removed. This necessitates the use of "Vocal Remover" technologies.
After removal, some high-pitched beeps might remain. Use an Equalizer (EQ) in Audacity: vocal remover fnf
Spleeter has historically been the preferred tool for FNF modders due to its speed.
Beginner — one-click, web-based
Intermediate — desktop apps / DAWs
Advanced — AI/source-separation tools + DAW polishing Friday Night Funkin' utilizes a simple audio engine
Before diving into the how, let’s look at the why. FNF soundtracks are unique because the “vocals” aren’t traditional singing—they are synthesized beeps, boops, and samples that mimic a human voice. However, these sounds still occupy the mid-to-high frequency range, clashing with potential new vocals.
Many FNF mods utilize audio sourced from YouTube or streaming services, which are already compressed (lossy). Running compressed audio through a neural network for stem separation often results in "watery" sounding artifacts in the high-frequency range (cymbals, hi Spleeter has historically been the preferred tool for