[music-dsp] lossless pcm compression

[Joshua Scholar]

It's based on robust LMS adaptive filters doing prediction and stereo
decorrelation and a range coder.   I've played with lots of algorithms and
LMS adaptive filters are faster than anything else that compresses that
much..

Shorten is the fastest compressor by far (but the encoder isn't free).  I
tried it the other day on a language tape and found that shorten special
cases silence and so a language tape (which is mostly silence) compresses
smaller with shorten than it does in anything else.  Normally, Shorten gives
the least compression, but in that one case it is better.

Windows Media Professional's lossless encoder takes a lot of computing power
and doesn't compress all that well.  In other words it's the worst, but it's
Microsoft.

----- Original Message ----- 
From: "Yuka" <yucon_listas at yahoo.com.ar>
To: "music-dsp" <music-dsp at ceait.calarts.edu>
Sent: Monday, February 28, 2005 6:52 PM
Subject: Re: [music-dsp] lossless pcm compression


> What about monkey audio compresion?
>
> http://www.monkeysaudio.com/theory.html
>
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