Log in

View Full Version : Problems with AC3 muxing

ppera2
6th October 2002, 16:07
I put this here because don't see better place - it is not only audio related.
I experimented with AC3 muxing and if I give for interleave some value bigger than 1 frame, for example 200 ms or similar I get unusable AVI, audio is mess or it play s too fast. I tried it because with DivX 5.02 I have pulsing playback.
Then I decided to try Ogg Media, but I can't get anything with OggMux (0.92) - it doesn't mux AC3 audio at all as I see.
Can I get some advice about AC3 audio multiplexing ?
Emp3r0r
6th October 2002, 20:00
Hate to say it but I must: use the search function of the forum.

http://forum.doom9.org/showthread.php?threadid=34790

You should have found the above thread where you find a program called ogmuxer.

at command prompt use
ogmuxer -o "Movie (AC3 sound).ogm" "movie.avi" "audio.ac3"

This is currently the best way (as there are others) to get an OGM with AC3
DJ Bobo
6th October 2002, 21:10
Don't see why you get pulsing with DivX5 (or any other version, it doesn't matter) anyway.
I always 96ms interleave & preload, no matter what bitrate it is, no matter how many channels it has, it plays just fine.
Muxed with NanDub of course.
ppera2
6th October 2002, 21:12
Thanx for advice. It solved problem, and playback is smooth now.
Sorry, but searching with my slow connection is not efficient, especially in AC3 things - this is still very messy in PC A/V world.

And why program autors 'implement' non-working options in their programs ? Actually it is not Oggmux error as I see, but Graphedit's, but anyway... few posts could be spared...
ppera2
6th October 2002, 21:17
Originally posted by DJ Bobo
Don't see why you get pulsing with DivX5 (or any other version, it doesn't matter) anyway.
I always 96ms interleave & preload, no matter what bitrate it is, no matter how many channels it has, it plays just fine.
Muxed with NanDub of course.

It looks that it's playback problem. Under Linux with Mplayer it plays fine. Problem is probably caused by installing lot of filters and their bad koexistenz ???
DJ Bobo
6th October 2002, 23:35
Don't know, it just play fine on my PC.
I don't use any nemo packs or something like that, I always install filters manually (I do every thing manually in fact :D)
The 96ms is universal, tested on many PCs of my friends, no problems at all.