Would any of you guys that are experienced at editing video & sound in Linux consider doing some demos for an upcoming meeting. Doesn't necessarily have to be next week's meeting. This would make a great topic!
On Tuesday, September 19, 2023 at 9:49:52 PM UTC-5 helpwit...@gmail.com wrote: > This is if you happen to know how far off the audio is from the video in this > case 3840 milliseconds or 3.84 seconds > > > *ffmpeg -i "movie.mp4" -itsoffset 3.84 -i "movie.mp4" -map 1:v -map 0:a -c > copy "movie-video-delayed.mp4"*Found this here: > https://superuser.com/questions/982342/in-ffmpeg-how-to-delay-only-the-audio-of-a-mp4-video-without-converting-the-au > > The hard part is knowing how far out of sync the audio is from the video, but > it's a quick change of the command line to experiment. > > I generally like to avoid re-encoding the video as Gibson mentioned. > Assuming you're not doing cinematography, a re-encode may give you more > options. > > > On Tue, Sep 19, 2023 at 9:32 PM Michael L <helpwit...@gmail.com> wrote: > >> I do video editing as part of my job. >> Suggestion #1: The Shotcut video editor allows you to separate the audio >> from video and add audio delay by moving the audio down the timeline from >> the video by 1 frame at a time or more. That's a tough and potentially >> time consuming way to get it exact, but maybe you can fix it that way and >> re render / export the file. >> >> I'll search for another way with FFMPEG and let you know if I find it .. >> along with other info. >> >> On Tue, Sep 19, 2023 at 6:35 PM Curt Lundgren <veri...@gmail.com> wrote: >> >>> My brother sent me an MP4 file, about 900 MB, where the audio is at >>> least a second ahead of video. I'd like to process the file so lip sync is >>> proper, but my search engine fu is coming up short. ffmpeg seems like it >>> would have the capability, but I haven't found a clue in the documentation >>> or the man page. >>> >>> The video does not need to be changed in any way, but if possible, I'd >>> like to boost the audio gain by as much as 10 db. >>> >>> I'd prefer to do this on a Linux machine, something running from command >>> line would be ideal. Does anyone have a clue how this can be accomplished? >>> >>> Thanks >>> Curt Lundgren >>> >>> -- >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "NLUG" group. >>> To post to this group, send email to nlug...@googlegroups.com >>> To unsubscribe from this group, send email to >>> nlug-talk+...@googlegroups.com >>> For more options, visit this group at >>> http://groups.google.com/group/nlug-talk?hl=en >>> >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "NLUG" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to nlug-talk+...@googlegroups.com. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/nlug-talk/CADPPtrp%3Dqnd%3DzFSQXAxjNfPQfZALp1RaXve0tpgt0fCsVTxhiA%40mail.gmail.com >>> >>> <https://groups.google.com/d/msgid/nlug-talk/CADPPtrp%3Dqnd%3DzFSQXAxjNfPQfZALp1RaXve0tpgt0fCsVTxhiA%40mail.gmail.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- -- You received this message because you are subscribed to the Google Groups "NLUG" group. To post to this group, send email to nlug-talk@googlegroups.com To unsubscribe from this group, send email to nlug-talk+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/nlug-talk?hl=en --- You received this message because you are subscribed to the Google Groups "NLUG" group. To unsubscribe from this group and stop receiving emails from it, send an email to nlug-talk+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/nlug-talk/52485163-e399-49c9-8dca-631eb7a8f95an%40googlegroups.com.
