cooool
19th May 2012, 13:29
Hi,
I wanted to convert an MKV (with DTS) to MP4 (with AAC). This is what I did:
1) Use mkvtoolnix to extract the video (.H264) and audio (.DTS) - no problems here
2) Use eac3to to convert DTS to M4A (using NeroAACEnc) - no problems here
3) Use MP4Box to mux the .h264 file and .m4a file - problems!!
After muxing, the audio and video are progressively out of sync. I checked the framerate of the MKV file, it is 23.976215.
The MP4 has a framerate of 23.976023.
Since the audio is the same length but videos have different framerates, it is causing the progressive out-of-sync.
What is the solution? How do I use MP4Box to mux it at 23.976215 FPS? Even if I use the -fps 23.976215 option, it ends up being 23.976023!
Else, how can I change the audio length?
Please help! Thanks!
I wanted to convert an MKV (with DTS) to MP4 (with AAC). This is what I did:
1) Use mkvtoolnix to extract the video (.H264) and audio (.DTS) - no problems here
2) Use eac3to to convert DTS to M4A (using NeroAACEnc) - no problems here
3) Use MP4Box to mux the .h264 file and .m4a file - problems!!
After muxing, the audio and video are progressively out of sync. I checked the framerate of the MKV file, it is 23.976215.
The MP4 has a framerate of 23.976023.
Since the audio is the same length but videos have different framerates, it is causing the progressive out-of-sync.
What is the solution? How do I use MP4Box to mux it at 23.976215 FPS? Even if I use the -fps 23.976215 option, it ends up being 23.976023!
Else, how can I change the audio length?
Please help! Thanks!