Started by Catorcio63, September 03, 2019, 11:43:45 am
Quote from: Catorcio63 on September 03, 2019, 11:43:45 amAvidenux, relevant properties info for the audio are: codec AC3 , duration about 31m32s (about the same as the video, giving up milliseconds).As the video is big (2.5GB), I want to rencode it (I did that many times with other videos in the past). Unfortunately, Avidemux does not allow to re-encode the audio from ac3 to MP3 (please provide for it, if possible).
Quote from: Catorcio63 on September 03, 2019, 11:43:45 amSo, as a workaround, I extracted the audio into an .ac3 file, using Avidemux Audio > Save audio. When I open the audio file in a player, I can see that the audio length is about 29m40s, i.e. almost one minute shorter than expected. Why? Is it possible to do anything about it?
QuoteSo, as another workaround, I converted the .ac3 to .mp3 with an appropriate program, then I "strecthed" the length of the audio to 31m32s with an appropriate filter. Finally, I recomposed in Avidemux the converted video and the converted audio; despite audio and video are of the same duration, the result is out of sync (and not by a fixed time shift).Any suggestions? Thanks in advance.