On Thu, Oct 10, 2019 at 12:41 PM Felix Muster via ffmpeg-user < ffmpeg-user@ffmpeg.org> wrote:
> Hello > > > > I want to cut the audio from a scene of a movie (blu-ray 23.976 pfs). > > I want to create the cut from frame 2928 to 5177. > > Currently I don't know where I have to cut the audio to be accurate. > > Is the given command correct? > > > > ffmpeg.exe -i audio.flac -ss (2928/(24000/1001)) -t > (5177/(24000/1001))-(2928/(24000/1001)) -codec flac audio_cut.flac > > ffmpeg.exe -i audio.flac -ss 122.122 -t 93.80204167 -codec flac > audio_cut.flac > > > > And from the documentation I should use -ss as an output option to be > accurate. But what is with -t? As input or output? > > > > Best > > Felix > > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". Would it not be easier to clip the video for the duration you want (frame 2928 to 5177) and then extract the audio from that clip? I have done this before and it worked for my needs however I didn't check to see if there was any loss of quality in the resulting audio by doing it this way. There didn't seem to be but I didn't do an analysis of the clip to check it's quality because, as mentioned, the audio I pulled from the video worked for my needs. Cheers. Karen _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
