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In Reply to: Compressing An Old Album posted by stav on July 7, 2015 at 14:24:15:
If the tracks are really mono, then FLAC will encode the tracks in about half the space. It converts the two channel stereo signals into A+B and A-B and in the case of a mono signal A-B will be all zeros, which is easily compressed. Even if it is almost mono then A-B will be low amplitude and this method of encoding will save space. (It will do this track by track, or possibly even block by block, I'm not sure how often the encoder changes strategy.)The FLAC encoder can try multiple ways to encode and pick the one that is most efficient. It then puts the necessary information into the file so that the decoder can recover the original signal exactly. You will get the best compression if you specify FLAC level 8 encoding. It will take a little more CPU time to encode than the standard level 5 and will save some space.
Disk space is cheap. It's probably not worth worrying about saving a little disk space. Your time is probably better spent earning money so as to purchase a bigger disk, if that's going to be a problem. :-)
Tony Lauck
"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
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- RE: Compressing An Old Album - Tony Lauck 07/7/1517:07:23 07/7/15 (0)
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