How to convert a VBR divx file to a CBR divx file?

Brazil · 11th July 2003, 16:03

Hi,

I have a Divx 5.05 vidoe file encoded using a VBR audio mp3 format. I need to convert the audio into a CBR. I guess I need virtualdub to do this but am a little unsure as to what to do next.

I know I have to rip the audio off the original file and then mux it back but am not sure how to do this.

I also have a Divx 5.05 video ac3 file which I would like to convert to a CBR. Would the process be the same?

Could someone please point me in the right direction?

Thanks for you help.

Awatef · 11th July 2003, 17:36

Demux the audio using AVI2WAV
Rename to MP3
Use RazorLame to decode to WAV, and then to encode the WAV to CBR MP3.

It's about the same procedure for AC3.
After extracting with AVI2WAV, rename to AC3, use the AZID program in a DOS window like this:
azid -a filename.ac3 filename.wav (add a -L -3db if you have a 5.1 AC3, and/or a -F wav24 if you have distortions in your WAV)
Then use RazorLame to encode the WAV file to CBR MP3.

Then you can mux the MP3 with your AVI using VirtualDubMod for example.

Brazil · 11th July 2003, 17:57

Thanks for that.
So when I demux does it create two files? One being the audio and one being the video? I think it probably does.

Is the intermediary step necessary, i.e encoding to wav. Cant you just take the audio source from the avi and turn it into an mp3, especially if the audio in one of the files is an ac3 file.

Also can all of this be done within BeSweet GUI instead of using the dos command line?

Are there alternative ways of doing this?

Thanks.

Brazil · 11th July 2003, 18:01

One more thing, I cant find AVI2WAV on the downloads section. Is it part of another program?

DSPguru · 11th July 2003, 18:38

just feed BeSweet directly with your AVI file and transcode to whatever you want. (eg, AVI->cbr mp3)

Awatef · 11th July 2003, 21:33

AVI2WAV doesn't make 2 files, it extracts audio only. You don't need 2 files anyway, after transcoding to CBR MP3, you open your original AVI in VDM, disable the old soundtrack, add the new CBR track, and save to a new AVI.

AVI2WAV is available here: http://www.divx-digest.com/software/avi2wav.html

Please make a search in www.google.com next time

11th July 2003, 16:03	#1 \| Link
Brazil Registered User Join Date: Jun 2003 Posts: 28	How to convert a VBR divx file to a CBR divx file? Hi, I have a Divx 5.05 vidoe file encoded using a VBR audio mp3 format. I need to convert the audio into a CBR. I guess I need virtualdub to do this but am a little unsure as to what to do next. I know I have to rip the audio off the original file and then mux it back but am not sure how to do this. I also have a Divx 5.05 video ac3 file which I would like to convert to a CBR. Would the process be the same? Could someone please point me in the right direction? Thanks for you help.

11th July 2003, 17:36	#2 \| Link
Awatef A CORE Media Player User Join Date: May 2002 Location: Africa Posts: 789	Demux the audio using AVI2WAV Rename to MP3 Use RazorLame to decode to WAV, and then to encode the WAV to CBR MP3. It's about the same procedure for AC3. After extracting with AVI2WAV, rename to AC3, use the AZID program in a DOS window like this: azid -a filename.ac3 filename.wav (add a -L -3db if you have a 5.1 AC3, and/or a -F wav24 if you have distortions in your WAV) Then use RazorLame to encode the WAV file to CBR MP3. Then you can mux the MP3 with your AVI using VirtualDubMod for example. __________________ Stereo better than 128kbps MP3? Ogg Vorbis at -q2! (~96kbps) / Get the LANCER releases for max conversion speed (at least twice as fast as Lame 3.97!) Last edited by Awatef; 11th July 2003 at 17:43.

11th July 2003, 18:38	#5 \| Link
DSPguru BeSweet Author Join Date: Oct 2001 Location: On top of a supercompact cardinal Posts: 3,506	just feed BeSweet directly with your AVI file and transcode to whatever you want. (eg, AVI->cbr mp3) __________________ FAQs : BeSweet, Audio :readfaq: Homepage : DSPguru's Webpage http://dspguru.notrace.dk/cs.gif Guides : Multilingual Guides of my tools http://dspguru.notrace.dk/1zhelp.gif

11th July 2003, 21:33	#6 \| Link
Awatef A CORE Media Player User Join Date: May 2002 Location: Africa Posts: 789	AVI2WAV doesn't make 2 files, it extracts audio only. You don't need 2 files anyway, after transcoding to CBR MP3, you open your original AVI in VDM, disable the old soundtrack, add the new CBR track, and save to a new AVI. AVI2WAV is available here: http://www.divx-digest.com/software/avi2wav.html Please make a search in www.google.com next time __________________ Stereo better than 128kbps MP3? Ogg Vorbis at -q2! (~96kbps) / Get the LANCER releases for max conversion speed (at least twice as fast as Lame 3.97!)

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11th July 2003, 17:57	#3 \| Link
Brazil Registered User Join Date: Jun 2003 Posts: 28	Thanks for that. So when I demux does it create two files? One being the audio and one being the video? I think it probably does. Is the intermediary step necessary, i.e encoding to wav. Cant you just take the audio source from the avi and turn it into an mp3, especially if the audio in one of the files is an ac3 file. Also can all of this be done within BeSweet GUI instead of using the dos command line? Are there alternative ways of doing this? Thanks.

11th July 2003, 18:01	#4 \| Link
Brazil Registered User Join Date: Jun 2003 Posts: 28	One more thing, I cant find AVI2WAV on the downloads section. Is it part of another program?