muxing downloaded MP3 to AVI

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Ashton
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muxing downloaded MP3 to AVI

Post by Ashton » Sat Jan 11, 2003 10:38 pm

Ok, so I did an entire AMV, and I compressed the video stream, and I used a downloaded MP3 to edit the video. I would really like to know if there is a way that I can mux the mp3 to the avi stream WITHOUT recompressing it so it stays in its original quality.
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RadicalEd0
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Post by RadicalEd0 » Sat Jan 11, 2003 10:51 pm

should work fine. AD will come along and correct me with his mp3 wav header ways but I say just mux it in nandub or virtualdubmod

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Ashton
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Post by Ashton » Sat Jan 11, 2003 11:04 pm

RadicalEd0 wrote:should work fine. AD will come along and correct me with his mp3 wav header ways but I say just mux it in nandub or virtualdubmod
What is virtualdubmod? Ill have to go dl nandub then. alright, thanx.
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Chaos Angel
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Post by Chaos Angel » Sat Jan 11, 2003 11:48 pm

The guides cover this. Basically, you mux it in VDub by selecting Direct Stream Copy to avoid recompression. But, there's some stipulations to getting it to work properly.

Read <a href=http://www.a-m-v.org/guides/avtech31/>ErMaC & AbsoluteDestiny's Friendly AMV Guides</a>
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NicholasDWolfwood
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Post by NicholasDWolfwood » Sat Jan 11, 2003 11:57 pm

He said MP3 audio, not WAV. :P
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Ashton
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Post by Ashton » Sun Jan 12, 2003 12:57 am

NicholasDWolfwood wrote:He said MP3 audio, not WAV. :P
Quit right! :D
RadicalEd0 wrote:should work fine. AD will come along and correct me with his mp3 wav header ways but I say just mux it in nandub or virtualdubmod
Right! Used VirtuatlDubMod, and the results are very nice. Its only downloaded music, but it sounds like I encoded the audio myself because it was done well by the other guy. Check it out, it really worked! :D
http://www.animemusicvideos.org/members ... hp?v=13756
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Chaos Angel
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Post by Chaos Angel » Sun Jan 12, 2003 3:17 am

NicholasDWolfwood wrote:He said MP3 audio, not WAV. :P
I quote the guides...
The Guides wrote:if you were using an mp3 as a source (shame on you :P) and made a wav file from it for editing, you will be losing quality again when reencoding to mp3. If you can, make sure that there is no silence at the start of your video (so that the first frame of the video is the first frame of the audio) then you can use the original mp3 file for the audio stream using Nandub.
So, you CAN use the original MP3 as audio for the encoding. I mucked up the details, but you can use the MP3, according to the guides.

Ref: Audio Page

Still, Ashton got it to work for him, so that's what important. I'd check it out, but I don't want Sen To Chihiro No Kamikakushi spoilers. Gomen!!
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Ashton
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Post by Ashton » Sun Jan 12, 2003 3:24 am

Chaos Angel wrote: Still, Ashton got it to work for him, so that's what important. I'd check it out, but I don't want Sen To Chihiro No Kamikakushi spoilers. Gomen!!
No, I perfectly understand. This video is ONE LARGE SPOILER. :twisted:
Its also a video that shouldnt be spoiled before first viewing... its THAT good. :D
Thanx all, I declare this thread over.
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AbsoluteDestiny
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Post by AbsoluteDestiny » Sun Jan 12, 2003 4:50 am

Muxing it using nandub and/or virtualdubmod is not a good idea.

However, if it's a variable bitrate mp3 there's nothing else you can do. If it is constant bitrate then you could add a wav header and mux it with vdub. I'm not sure if vdubmod is sensible enough to not use the nandub muxing method for cbr mp3s, so it might be fine.

I do know it still uses the nandub method for vbr stuff, though, as it's the only workaround.

In terms of playback, though, it should be ok with the method you used.

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