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Old 2008-05-30, 12:29 PM
roomful
 
Re: Lossy or lossless?

Quote:
Originally Posted by tgunn2760 View Post
I have a DVD with low volume AC3 audio @256;

I extract the audio to wav with IMToo DVD ripper;

run it through Goldwave and increase the volume;

encode to AC3 audio at same bitrate-256-with Sony Vegas.

Do I have a lossy or lossless DVD?
That's double lossy. One encoding to lossy is bad enough, but decoding lossy to wav then encoding again to lossy will really make it sound terrible. All the negative aspects of lossy compression will be much more apparent upon listening.

If you want to edit/process it, and preserve the quality, you will have to leave it as wav after running it through Goldwave, and use LPCM audio for your DVD.
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