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Old 20th April 2015, 23:33   #8  |  Link
manolito
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Join Date: Sep 2003
Location: Berlin, Germany
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After you have decompressed the 96 kbps AC3 file to WAV, no encoder will be able to tell that this WAV comes from a heavily compressed AC3. This WAV will of course have all the artifacts and low bitrate precision problems, but to the encoder it means that it will do the best it can to encode all these artifacts and deficiencies.

Use a still picture JPG as an example. At a very high compression you will see plenty of the typical blocking, but if you try to recompress this JPG to another JPG, the converter will try to compress these blocking artifacts as faithfully as it can. And the decoded file will not be any easier to compress than a high quality file without any blocking artifacts.


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manolito
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