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View Full Version : Muxing Vorbis Audio With AVC Video

neo_anderson
25th February 2005, 03:41
Hi,
i was wondering if this is possible : Encoding Video in nero recode 2, and then muxing an external vorbis audio stream in the mp4 container, will that file be playable? also, how to do this? will mp4 muxer be able to do it?
azsd
25th February 2005, 05:02
if you want to mux ogg to mp4
here is the mp4 FAQ in containers forum:

http://forum.doom9.org/showthread.php?s=&threadid=62723


- Ogg Vorbis and Ogg Theora, via mp4box. playback only works with GPAC's Osmo4 player
- Ogg Vorbis, via a patched mp4creator. playback only works with the patched WMP4Player too
bond
25th February 2005, 12:27
plz dont mux vorbis in .mp4, its not stable

if you want to combine vorbis and avc use matroska

thread moved to container forum as its a container issue
JoeBG
25th February 2005, 13:47
Originally posted by neo_anderson
Hi,
i was wondering if this is possible : Encoding Video in nero recode 2, and then muxing an external vorbis audio stream in the mp4 container, will that file be playable? also, how to do this? will mp4 muxer be able to do it?

mp4muxer will do that for you :) . But ogg in mp4 is not this stable.
Sharktooth
25th February 2005, 13:53
Why using vorbis + AVC when you can use AAC + AVC?
AAC + AVC would produce a perfectly compliant MP4...
SeeMoreDigital
25th February 2005, 17:39
Originally posted by Sharktooth
Why using vorbis + AVC when you can use AAC + AVC?
AAC + AVC would produce a perfectly compliant MP4... Agreed!
bond
25th February 2005, 17:56
Originally posted by Sharktooth
Why using vorbis + AVC when you can use AAC + AVC?propably because vorbis should bring better quality than aac (leaving multichannel and the sbr/ps extensions aside) :p
neo_anderson
25th February 2005, 19:27
aac has too low volume in recode 2 right now, so i was thinking of using vorbis with it! well, thks for ur inputs guys!
SeeMoreDigital
25th February 2005, 20:55
Originally posted by neo_anderson
aac has too low volume in recode 2 right now, so i was thinking of using vorbis with it! well, thks for ur inputs guys! I presume you've had to de-mux the AC3 stream so you can create your Vorbis stream?

If so, then why not feed the same AC3 stream into Foobar2000 and use some of it's filters/plug-ins to raise it's audio level, prior to creating your Nero AAC stream?


Cheers
azsd
26th February 2005, 07:46
else you can use Belight(0.21) to convert .ac3 to .aac it will do dynamic compression/PreGain automaticly.

then remux/replace the aac audio track back to mp4 by mp4creator/mp4ui