Please help save my college application! I'm uploading videos to a school admissions website, which is converting them into lower quality files. These converted files for some reason have an audio skew (the audio becomes ~100ms too early which ruins the videos).
Is a way to pre-process my videos so that the audio skew won't happen when I upload? Any help here would be greatly appreciated, I don't know much about audio/video specifically aside from googling the basics.
Unfortunately I don't know the exact command the website is running (my guess is ffmpeg), but I used
ffprobe on the original and converted files and this is the result:
ORIGINAL Stream #0:0(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 320 kb/s (default) Stream #0:1(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv), 1920x1080 [SAR 1:1 DAR 16:9], 17982 kb/s, 59.94 fps, 59.94 tbr, 60k tbn, 119.88 tbc (default) CONVERTED Stream #0:0(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 160 kb/s (default) Stream #0:1(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 720x404 [SAR 404:405 DAR 16:9], 1002 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
The audio changes from 48khz to 44.1khz, and gets a lower kb/s.
The video changes from 59.94fps to 29.97fps, and gets a lower resolution.
Thanks, please help save my college application!