Quick hack for SD 2.5 video gen: Strip out that annoying background music while keeping dialogue and SFX intact.

Workflow:
1. Import your SD 2.5 output into CapCut
2. Hit Separate Audio → select Vocals mode
3. CapCut's stem separation isolates voice + sound effects into a new track
4. Mute the original video layer

Result: Clean audio with speech and SFX preserved, background music nuked.

Caveat: Requires CapCut Pro subscription. The vocal isolation uses their ML-based stem separation (likely Demucs or similar under the hood).

Useful if you're doing post-production on AI video gens and want to add your own soundtrack without the default music bleeding through. 🎧