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Given a lossless audio file, can detect if the source is lossless?

post #1 of 5
5/3/07 at 11:22pm
Thread Starter 
If I rip a CD to a 192k MP3 files, and then convert the MP3 files to a lossless format such as Wave (or Flac or Apple lossless etc), is there any software I can run to determine that the wave/flac files are not from lossless source?
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post #2 of 5
5/4/07 at 7:23am
Quote:
Originally Posted by xendus View Post

If I rip a CD to a 192k MP3 files, and then convert the MP3 files to a lossless format such as Wave (or Flac or Apple lossless etc), is there any software I can run to determine that the wave/flac files are not from lossless source?

Didn't you just make it lossy by converting it to MP3?
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post #3 of 5
5/4/07 at 7:44am
I think he means if he gets a Flac file from "somewhere" can he determine if it was made from the uncompressed/original source. His example was a means of testing the "verifier". If he didn't mean that, he should have.

larry
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post #4 of 5
5/4/07 at 8:38am
Yes, but pretty much only if you have a known-original lossless copy. At which point, the answer to the question doesn't matter too much because if you have a known good copy you can just encode THAT to flac.
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post #5 of 5
5/4/07 at 9:04am
@ 192kbps its easy to detect with just your ears. If it was done 320 then back to lossless, you may need some sort of software comparator to do this. Probably convert both to .wav and view both in a .wav file editor.

Also, if you notice a brickwall at 12khz, 16khz, you can be pretty sure its lossy (unless the cd was engineered very poorly).
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