On Thu, Feb 7, 2013 at 1:50 PM, Dan Dennedy <d...@dennedy.org> wrote: > On Thu, Feb 7, 2013 at 1:12 PM, Doran Barton <f...@iodynamics.com> wrote: >> I have had similar issues. > > That is not saying much. A/V sync has been a problem for every media > tool since day 1 and will continue to be. > >> For example, when editing a project that combines >> video from my Panasonic HD camera and my Canon DV cameras, I get some audio >> sync drift. >> >> The HD files are 59.94 fps, 44.1k audio sample rate. >> >> The DV files are 29.97 fps, 48k audio sample rate. >> >> Could the sample rate be causing some of the sync issues? > > Maybe but doubtful. Only detailed analysis of specific scenarios will > go somewhere.
I should mention that the latest version of MLT (0.8.8) fixes an A/V sync bug when you split the audio/video on the timeline: - "Automatically split audio and video" in Settings > Timeline - right-click clip on timeline and choose "Split Audio" or - individually place the same clip on a video track and audio track Also, in middle of 2012, I made major changes to the seek and sync-ing within MLT's avformat module due to some problematic files/formats under versions prior to 0.8.2. Of course, there were a couple of regressions found shortly after that. Basically, if you are using version 0.8.2 or 0.8.6, it is time to try with latest version 0.8.8. I have some standalone binary builds if you want to make a quick try without depending upon your distro packages. http://builds.meltytech.com/kdenlive/kdenlive-fedora17-x86_64-20130207.tar.bz2 http://builds.meltytech.com/kdenlive/kdenlive-ubuntu11.10-x86_64-20130207.tar.bz2 http://builds.meltytech.com/kdenlive/kdenlive-ubuntu11.10-x86-20130207.tar.bz2 Look for the start-kdenlive script after unpacking. The ubuntu builds work on newer versions of Ubuntu in addition to Debian 7 and OpenSUSE 12. -- +-DRD-+ ------------------------------------------------------------------------------ Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb _______________________________________________ Kdenlive-devel mailing list Kdenlive-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kdenlive-devel
