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List: flac-dev
Subject: Re: [flac-dev] lossless compression's limit : 53% ?
From: Martijn van Beurden <mvanb1 () gmail ! com>
Date: 2014-03-25 9:41:32
Message-ID: 53314F4C.70201 () gmail ! com
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op 25-03-14 10:01, Nouvelle Collection schreef:
> What is nowadays lossless compression's limit (tested on a
> large library of music samples, because of course, it depends
> on the music we do the tests on)
I did the comparison that's on xiph.org/flac/comparison.html. I
can assure you, that's pretty much as good as it gets with
current codecs. OptimFROG has filters for quite a lot of special
cases, but still it can't compress much better than it does now,
so I guess we're pretty much at the limit of what is possible.
For a more comprehensive review of obscure codecs, take a look
here: http://www.squeezechart.com/audio.html As you can see, the
smallest file takes 1200 times longer to encode than FLAC's
slowest setting, but improves only 6%. As you can see, that
codec was made in 2007, so there has been no improvement in the
last few years, and I don't expect any until quantum computing
algorithms are developed :P
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