View Full Version : Have a problem with YAMB
AlexeyS
17th July 2005, 01:31
I try to mux 5.1 AAC track (encoded with Belight) and 1280x720 movie (encoded with Nero Recode). When I mux, out movie has audio sync problems.
When I open movie with Nero ShowTime, the sound sync is perfect. But when I start to move slider (forward or rewind movie), the sound and video are not synced (sometimes there is no sound).
Tried on view movies - same story everywhere.
Tried on non-HDTV video - working perfectly. Is problem with HDTV? How can I Mux video and audio properly?
Kurtnoise
17th July 2005, 11:04
1/ This doesn't concern Yamb but probably mp4box.
2/ Try to create a mux with command prompt.
3/ Try an other player.
bond
17th July 2005, 13:23
i am sure it doesnt make a difference whether you mux hd or normal defintion video
if the desync increases with time than this might mean that you have set the wrong framerate while muxing. mp4box uses by default 25fps
AlexeyS
17th July 2005, 13:37
i am sure it doesnt make a difference whether you mux hd or normal defintion video
if the desync increases with time than this might mean that you have set the wrong framerate while muxing. mp4box uses by default 25fps
I've tried to use YAMB with commandline ("View or Edit commandline"). I've just added this in YAMB in the middle of commandline:
-fps 29.97
And still audio sync problem. :(
bond
17th July 2005, 13:47
try feeding mp4box with your commandline directly, not vai yamb, maybe it doesnt pass it correctly?
also what version of mp4box did you use?
AlexeyS
17th July 2005, 16:53
try feeding mp4box with your commandline directly, not vai yamb, maybe it doesnt pass it correctly?
also what version of mp4box did you use?
I've just tried MP4Box 0.3.0 commandline and problem is still here.
Also I've tried latest build of YAMB (downloaded with MP4Box) and latest YAMB alpha.
I belive the problem is with High Definition, because I've tried to encode same movie as standard definition and has no problem with muxing with same AAC track.
Maybe MP4Box can't mux HDTV AVC properly, maybe Nero Recode gives me some buggy video... :confused:
bond
17th July 2005, 17:04
how big is the file?
AlexeyS
17th July 2005, 17:14
how big is the file?
Video is 4 Gb and audio is 150 Mb.
bond
17th July 2005, 17:28
there was recently a bug fixed with 4gb file writing, make sure you use a compile made with sources older than 20 june
AlexeyS
17th July 2005, 18:34
there was recently a bug fixed with 4gb file writing, make sure you use a compile made with sources older than 20 june
Tried 2 builds after 20 june - still have problem. :confused:
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