SUMMARY It’s independent of the audio tracks — the noise (like old film / record player crackle) only appears during playback in the editor. In the rendered video, it’s not audible. STEPS TO REPRODUCE 1. Import the same videos 2. Add them to the timeline 3. Press play OBSERVED RESULT Playback works correctly, but continuous noise and crackling can be heard in my headphones. EXPECTED RESULT Playback without noise. SOFTWARE/OS VERSIONS Windows 11 24H2 (x86_64) ADDITIONAL INFORMATION This is just a standalone running program without installation.