PDA

View Full Version : MKV->wav or ogg sound trouble


kawasakininja
14th November 2004, 00:02
Alright the long story:

File is dual language MKV. I want to burn that as vcd as I have done millions of times before. I rip the subs, I rip the video and I rip the soundtrack in VDmod. when i use full processing mode it says no audio decompressor could be found, and when i use direct stream copy it doens't give an error but now, when I save WAV, windows can't open it saying that there is no codec.

I had that before, so i used avimux to save as AAC but that doesn't work this time, it just crashes.

the problem is most likely a missing audio codec, but wmp9 plays everything perfectly, and so does bsplayer.

I have tried AC3, AAC OGG but nothing works, i just can't figure out which codec I need, it is not in the file name. the video is xvid.
when I go to audio streams in vdmod it says:"audio stream microsoft unknown wave format, ID A_AAC/mpeg4/LC/SBR 2 ch. blah blah"
when i open the file in zvi-mux, it says at audio details :"HE-AAC MPEG 4 LC blah blah"

but the AAC codec from coreaac doesn't work.

and when i hover my mouse over the wav file the yellow box says: acm codec not installed. so i installed an acm codec (this one: http://www.free-codecs.com/download/Vorbis_Ogg_ACM.htm
) but still nothing.

all the converting programs i used to try and convert the wav into mp3 or ac3 or whatever all crash.

I've tried everything, I'm really at my wits end here.

anyone know a codec that i might need?

melvinvc
14th November 2004, 03:47
Please try this:
Use dvd2avi to extract the ac3.
Use gordian knot to make the avs.
Use virtualdubmod to encode the video.
Use Besweet to encode the audio streams.
Use mkvtoolnix to mux everything.

Maybe this help you.
This works perfectly for me, a video stream, 2 audio streams, 2 subtitle streams and chapters.

kawasakininja
14th November 2004, 16:58
Originally posted by melvinvc
Please try this:
Use dvd2avi to extract the ac3.
Use gordian knot to make the avs.
Use virtualdubmod to encode the video.
Use Besweet to encode the audio streams.
Use mkvtoolnix to mux everything.

Maybe this help you.
This works perfectly for me, a video stream, 2 audio streams, 2 subtitle streams and chapters.

ok i tried that but:
dvd2 avi crashes and besweet said again it couldn't find the right codec.

ChristianHJW
15th November 2004, 22:00
First you have to check what codecs are used on your audio/video streams in the MKV.

use mediainfo (http://mediainfo.sf.net) for that and tell us the codec IDs that are being used.

Christian
matroska project admin

kawasakininja
19th November 2004, 00:02
Originally posted by ChristianHJW
First you have to check what codecs are used on your audio/video streams in the MKV.

use mediainfo (http://mediainfo.sf.net) for that and tell us the codec IDs that are being used.

Christian
matroska project admin

Ok great program btw.

here goes: it is an aac i think, the full message is:
Audio #0
Codec : A_AAC/MPEG4/LC/SBR
Bit rate : Bps
Channels : 2
Sampling rate : 22 KHz
Language : English

I've now downed another file, a normal avi file encoded with xvid but it is the same story: an ac3, but again the same errors

Bps, 48 KHz, 2 channel(s), AC3

I don't get it I've got the corecodec AAC, as well as the ac3 and what's that acm?

celtic_druid
19th November 2004, 01:02
Yep, he aac as per the original post. I would use mplayer.exe -aid ? -ao pcm -vo null -vc dummy whatever.mkv -aofile output.wav, where aid specifies the desited audio stream as you said that there were multiple. alang will also work if they are tagged correctly, so say -alang eng.

kawasakininja
19th November 2004, 14:25
ok thnx

I've downloaded a codecpack. I know that's not the best thing to do but apparantly the right one was in there somewhere, so at least the ac3 version is working now, and that is enough.

Paulcat
11th January 2005, 14:54
I had a similar problem. AAC audio is a pain. What I did was use MKVEXTRACT.EXE to extract the AAC audio stream from the MKV file.

Then I used FAAD2.EXE to convert the AAC file to a stereo WAV file, which is pretty much readable by anything.

Granted, I went from 6 channels to 2...unless you can make a 6 channel WAV file and convert that to AC3 and multiplex that into your mpg file. Is that possible?

Hey, I'm new at this!