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Music servers and other computer based digital audio technologies.

The procedure... RE: You would have to buy a CD(s), if I understand you correctly.

Hi carcass...

How about this - very simple procedure:
1. Folks who think MP3 can easily be discerned give me suggestions of song(s) and which portion they feel MP3 cannot encode properly - eg. HF content, microdynamics, unrealistic timbres...

2. With the suggestions, assuming a few folks agree this part is difficult to encode, I will splice out ~1.5 minutes (EAC or dBPowerAmp secure CD rip) and produce 2 files:
a. Uncompressed WAV/FLAC from CD.
b. File a. above --> Encoded with LAME MP3 ~320kbps (might be -V0, and whatever the newest LAME version is) --> Decoded with foobar2000 back to WAV/FLAC.

3. I'll put the 2 files up somewhere as a ZIP and for anyone to download and sample for say 1 month before erased.

4. We start a new thread to collect impressions and who thinks which is MP3, which is the original CD rip. Collate the data, would be great if folks also reveal equipment used. Lets see how accurate everyone is as to whether FILE 1 or FILE 2 is the MP3.

Note that I KNOW it's not hard to differentiate an MP3 from the originating WAV if one has an audio editor. Therefore I will be using my own tricks to hide the identity as best I can - there are ways :-)... Rest assured, the lossy WAV file will have been "molested" by psychoacoustic algorithms.

Any critiques / suggestions welcome.

Addendum: Yes, I am aware of the copyright issues. However, I appeal to any lawyers out there to chime in here from experience. I'm proposing we borrow a "small amount" of music to test, there is no intent or opportunity for anyone testing to benefit financially, and doing this is all in the interest of 'research' and personal education. In fact, one could argue doing a test may allow some people to sample a track they would enjoy and purchase. As just an average music lover who is also curious about my hobby, I would imagine a simple test like this would constitute "fair use" of copyrighted material with really no issue IMO of exploitation.
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Archimago's Musings: A 'more objective' audiophile blog.


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