I have an AVI file with AAC audio, that i need to convert to having an MP3 audio track instead in order to play in on my standalone DVD player.
Now the only ways i've found to do that would entail re-encoding the entire AVI with AlltoAVI or something similar, which seems like overkill to me. After all the video stream is ok. I only want to change the audio stream.
Is there a way de-mux convert to AAC then re-mux leaving the video stream untouched?
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It seems to be just what I am looking for, but for some reason the file comes out without audio at all.
I've set it to:
Stereo
CBR
Quality 2
Bitrate 192
When using the calculator it even shows the projected audio size.
But when saving what it shows is:
Phase: Saving
Video Codec: Copy
Audio Coded: MP3
Container AVI
but audio size as "0"
and the saved file then contains no audio stream at all.
in the plugins folder of avidemux there a file called "libADM_ae_lame.dll" so i soppose the codec should be there.
What am I missing? -
You could try VirtualDub instead of AviDemux. You'll have to install LameACM and an ACM AAC decoder.
1) File -> Open Video File
2) Video -> Direct Stream Copy (don't reencode video)
3) Audio -> Full Processing Mode (reencode audio)
4) Audio -> Conversion... (if necessary)
5) Audio -> Compression... (Lame ACM, set properties)
6) File -> Save as AVI -
I do the same thing occasionally. It's a piece of cake to use Avanti to convert the AAC audio from the video file (input as source 1) to a separate MP3, WAV, or whatever file. Then to jagabo's excellent Virtualdub instructions, simply add one step:
3a) Audio -> Audio from other file (point to new file)
Simple and fast.
Best,
Calidore
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