FLAC Slider

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kozikowski
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FLAC Slider

Post by kozikowski » Thu Aug 05, 2010 10:03 pm

There is a slider in the FLAC control panel during export. Better/Fastest. Since FLAC doesn't have quality adjustments. What's the slider doing?

Koz

Gale Andrews
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Re: FLAC Slider

Post by Gale Andrews » Fri Aug 06, 2010 12:51 am

kozikowski wrote:There is a slider in the FLAC control panel during export. Better/Fastest. Since FLAC doesn't have quality adjustments. What's the slider doing?
There is no slider in the Audacity options. Have you downloaded something from FLAC - if so, what exactly? I assume whatever you are seeing is the compression level (which affects encoding speed very significantly while - because lossless - barely changes the size of the exported file).


Gale
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kozikowski
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Re: FLAC Slider

Post by kozikowski » Fri Aug 06, 2010 5:09 pm

Bad choice of words. I'm still having trouble wrapping my head around the function of "level."

If the file size doesn't change (much) and the quality is fixed, why would you want anything other than fast?

Koz

billw58
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Re: FLAC Slider

Post by billw58 » Fri Aug 06, 2010 6:56 pm

kozikowski wrote:If the file size doesn't change (much) and the quality is fixed, why would you want anything other than fast?
Fastest will compress to about 57% of the original size, level 5 (default) will compress to about 54% or so of the original file size. Level 8 might compress to 50%.

http://flac.sourceforge.net/comparison.html

So if that extra 7% compression is important, you want level 8. If you want the file compressed quickly, choose level 1.

-- Bill

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