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LAME version identification?
bennetng
post Oct 14 2006, 15:07
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Does LAME store version information in MP3 files? If yes, how to read this information and how to enable/disable this function? Thanks.
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odyssey
post Oct 14 2006, 19:31
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Why not give him two decoded wav-files then?


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Can't wait for a HD-AAC encoder :P
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bennetng
post Oct 14 2006, 19:53
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Too large to upload...
Moreover, two files are not enough because the possibility of guessing is 50%. To make the result more reliable, a lot of test samples are necessary, so filesize will even larger.

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Some people also claimed that 320k is not transparent. I encoded a test sample in LAME preset medium, standard, extreme, insane, plus the original lossless file then convert to APE and ask those people to list sound quality in descending order. I included the answer in an encrypted RAR file and did not reveal the password until they answered the question. I succeeded. Some people even have no courage to answer the question, and those who answered the question were wrong. However this test method is also not secure because the spectrum graph of those audio files may provide some hints (such as lowpass).

One set of these files roughly cost 10-20MB...
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