> On Dec 27, 2010, at 07:10, Fernando Alberto Marengo Rodriguez wrote: >> If you want to be sure that you get no information loss, I suggest >> a very simple test. Recover your WAV file from any of the FLAC >> files you mentioned in your e-mail. If this WAV file is bit-by-bit >> identical to the input WAV file, then you have no information loss. > > This is a good test, but keep in mind that only the audio part of the > WAV file will be identical. There are non-audio parts to a WAV file, > and those may be lost or changed when compressed, so you will need > some method of comparing only the audio and not the rest of the > file. In other words, a basic file to file compare might fail even > if the audio is the same. > > I'm not sure how to compare the audio part only, at least not > easily. You can place each file in the same DAW, but with one set > for inverted polarity. Then mix them together and you should get > silence. But that is not an easy or simple test.
Caveat: I've never tried any of these, but these have come up in various HA threads I've read over the years: Audacity EAC: Compare WAVs (CTRL-W) foobar2000: bit-compare two tracks (http://www.foobar2000.org/components/view/foo_bitcompare) Cheers, Martin _______________________________________________ Flac mailing list [email protected] http://lists.xiph.org/mailman/listinfo/flac
