I want to convert my already compressed audio

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I want to convert my already compressed audio

Postby silver_moon » Wed Oct 30, 2002 9:44 pm

Ok, I have encoded about five of my videos into avi's that use IMA ADPCM as an audio codec and have them up on the site. I have finally realized that I should be using MPEG Layer-3, since not everybody's computer can play IMA ADPCM, and MPEG Layer-3 is supposed to do a better job anyway.

But now the problem is, I no longer have uncompressed versions of the audio. I have used voice-overs and such and have deleted the source files I used for them. Is there any way I can just stick my video in VirtualDub, make a direct stream copy of the video, and convert my audio to a different codec? I don't know how I would go about doing this... any tips?
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Joined: 23 Nov 2001
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Postby klinky » Wed Oct 30, 2002 11:42 pm

Install Divx 3.11a or get the Lame ACM codec(yahoo, hint hint).


Take the file into virtualdub.

Click video|direct steam copy

click audio|full processing mode

click audio|compression

.. look for MPEG Layer-3
... or look for Lame MP3

44khz 128Kbit Stereo should be pretty good you can choose a higher bitrate if you want.

If you can't get a higher bitrate then 56kbits, then reboot your computer and install Divx 3.11a again or install the Lame ACM codec.

After you have it setup, goto File|Save as AVI...

Shouldn't take more then a couple minutes.

You won't lose any video quality doing this and your audio will become compressed.

Gargh and here are some links.

<a href="http://www.divx-digest.com/software/divxcodec.html">DivX 3.11a</a> - <a href="http://www.afterdawn.com/software/audio_software/audio_encoders/lame_acm.cfm">Lame MP3 ACM</a>.


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