https://bugs.kde.org/show_bug.cgi?id=491124
--- Comment #4 from Uwe Dippel <udip...@gmail.com> --- If this worked, my problems would be fewer. Unfortunately, ffmpeg is (not yet) able to cut/trim accurately, due to the issue of key-frames. While kdenlive recently has been quite robust w.r.t. lip-synchronism. Initially, I had exactly that: a script that removes one or more audio tracks from a combined file, including me passing start and end times. Though the audio tracks started/ended with a sync deficiency up to two seconds. I had already studied everything on github; so far this seems to be the state of the art, as far as ffmpeg is concerned. Currently I render in kdenlive, single audio track, unified file. Then I import into Audacity, use the extracted (ffmpeg) audio file, and visually adjust and subsequently cat / add the milliseconds to the additional audio tracks, and reassemble with ffmpeg. This is also why I wrote that other bug report, since kdenlive takes about 10-fold the time to render a single audio file in comparison with extraction of an audio file with Audacity, adjusting the timing, exporting and reassembling. I was (and am) actually hoping that one day kdenlive can render multiple audio tracks; though until then I'd be happy if I could export a lip-synchronous audio track from the time line and render it e.g. with audacity within a few minutes in order to re-assemble within another few minutes. -- You are receiving this mail because: You are watching all bug changes.
