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FLAC -0 ... -8, What is your compression level?
What is your compresion level?
FLAC
-0 [ 3 ] ** [0.61%]
-1 [ 1 ] ** [0.20%]
-2 [ 1 ] ** [0.20%]
-3 [ 2 ] ** [0.41%]
-4 [ 4 ] ** [0.82%]
-5 [ 102 ] ** [20.86%]
-6 [ 55 ] ** [11.25%]
-7 [ 4 ] ** [0.82%]
-8 [ 297 ] ** [60.74%]
-8 -A tukey(0.5) -A flattop [ 20 ] ** [4.09%]
Total Votes: 648
  
IgorC
post Nov 3 2007, 06:28
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What makes FLAC so widely used? Because it's asymmetric? Are people satisfied enough by compression ratio or is it price for high decoding speed?

Last time I start to compress my CD rips with even more asymmetric settings:
-l 12 -b 1152 -r 6 -e

Compression ratio is as of -4 preset but decode speed is higher than for -3 and 10% slower than -0. It's of course at cost of lower encoding speed than of -4 preset.
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user
post Nov 3 2007, 12:56
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QUOTE (IgorC @ Nov 3 2007, 06:28) *
What makes FLAC so widely used? Because it's asymmetric? Are people satisfied enough by compression ratio or is it price for high decoding speed?


Personally I use -8 , which is even fast enough for old Pentium 3 @ 800 MHz, maybe as I rip EAC , Test & copy secure.

IIRC, decoding speed of flac is more or less always the same very fast decoding speed, independent of encoding setting, ie. once you compress to the max with slightly more encoding time, you get the flac smalles sizes, and have also the very fast decoding.

In general, I think flac is so widely used because:
- very fast encoding, if you don't use -8 wink.gif
- more important: the als very very fast DEcoding.
- hardware support by industry , flac was the first (free) lossless codec, I think
- same effect like mp3, as flac has the majority, it grows even quicker, though other lossless formats might have slight advantages on certain single aspects,
but flac is strong at: en- and maybe more important DEcoding speed, hardware support.
- Compression ratio differences amongst lossless codecs are slight and practically unimportant.
What might matter to end-users: speed & hardware/software/OS support.
flac was iirc the first lossless codec for all major OS like windows, unix/linux, mac ?

This post has been edited by user: Nov 3 2007, 12:58


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Posts in this topic
- IgorC   FLAC -0 ... -8   Nov 3 2007, 06:28
- - Synthetic Soul   It is interesting to see, so far, that the compres...   Nov 3 2007, 11:14
- - guruboolez   -8 On my side encoding speed is perfect for CD Rip...   Nov 3 2007, 11:30
- - Mitch A   -5, I've always just used this 9 (Being the de...   Nov 3 2007, 11:37
- - user   QUOTE (IgorC @ Nov 3 2007, 06:28) What ma...   Nov 3 2007, 12:56
- - drbeachboy   I use -8 now, though I was using -6 for a very lon...   Nov 3 2007, 16:21
- - Clear89   QUOTE (drbeachboy @ Nov 3 2007, 15:21) I ...   Nov 3 2007, 16:34
- - Borisz   I never understood, what does -A tukey(0.5) -A fla...   Nov 3 2007, 16:41
- - verbajim   I've gone the other way, from 8 to 6 because I...   Nov 3 2007, 18:53
- - beto   -5 for me. I used to use -8 but since there is no ...   Nov 3 2007, 19:42
- - lunkhead   5, but maybe i'll try 6. did you have to incl...   Nov 3 2007, 19:57
- - Synthetic Soul   QUOTE (user @ Nov 3 2007, 11:56) flac was...   Nov 3 2007, 19:57
|- - jcoalson   QUOTE (Synthetic Soul @ Nov 3 2007, 13:57...   Nov 5 2007, 20:34
|- - GeSomeone   QUOTE (jcoalson @ Nov 5 2007, 20:34) depe...   Nov 5 2007, 22:52
- - Engywuck   I usually use -8, since even when ripping 2 CDs si...   Nov 5 2007, 10:19
- - Bad Monkey   QUOTE (Engywuck @ Nov 5 2007, 22:19) I us...   Nov 5 2007, 14:41
- - M   QUOTE (IgorC @ Nov 3 2007, 00:28) What ma...   Nov 5 2007, 15:01
|- - Borisz   QUOTE (M @ Nov 5 2007, 16:01) QUOTE (Igor...   Nov 5 2007, 18:28
- - verbajim   QUOTE (Bad Monkey @ Nov 5 2007, 14:41) I ...   Nov 5 2007, 20:26
|- - Bad Monkey   QUOTE (verbajim @ Nov 6 2007, 08:26) QUOT...   Nov 8 2007, 09:27
|- - EagleScout1998   QUOTE (Bad Monkey @ Nov 8 2007, 03:27) No...   Nov 17 2007, 23:37
- - Seiitsu   -8 It encodes really really fast for me... so no ...   Nov 5 2007, 20:30
|- - probedb   QUOTE (Seiitsu @ Nov 5 2007, 19:30) -8 I...   Nov 8 2007, 09:24
- - ArtMustHurt   -8 here as well   Nov 10 2007, 18:19
- - collector   In the longhelp I read that -8 and -7 have -e embe...   Nov 17 2007, 13:58
- - Bourne   I hope Blue-Ray/HD-DVD Players come with FLAC supp...   Nov 17 2007, 23:47
|- - IgorC   QUOTE (Bourne @ Nov 17 2007, 14:47) I hop...   Nov 18 2007, 00:08
- - djdust   Complete newbie thickie here so, apologies if this...   Dec 2 2007, 17:48
- - SamHain86   @ DJdust: The 0-8 is the compression setting. With...   Dec 2 2007, 17:52
|- - djdust   QUOTE (SamHain86 @ Dec 2 2007, 16:52) @ D...   Dec 2 2007, 18:57
|- - damaki   QUOTE (SamHain86 @ Dec 2 2007, 17:52) @ D...   Dec 2 2007, 19:49
- - SamHain86   @ Damaki: ... AH HAHAHAHAHAHAHAHAHA!- You near...   Dec 2 2007, 20:02
- - miranon   I use -6. Best compromise for me between 7-8 and 5...   Feb 6 2008, 19:55
- - naturfreak   Default setting (-5), I don't care about 0.5% ...   Feb 6 2008, 20:48
- - ArtMustHurt   i use -6, i ripped a bunch of cds last night and r...   Mar 11 2008, 13:09
- - 2tec   Using -8 myself, why compromise? Besides with mult...   Apr 20 2008, 15:59
- - KFal   When I ripped the entire CD collection of my girl ...   Apr 6 2009, 10:26
|- - insane_alien   -8 it shaves a few gigabytes off my collection a...   Apr 6 2009, 13:40
- - Angenial   QUOTE (IgorC @ Nov 2 2007, 21:28) What ma...   Apr 6 2009, 18:08
- - madoka@ex-sounds   -8 for peace of my mind   Apr 6 2009, 18:30
- - _mē_   -8. Considering that I don't plan recoding mor...   Apr 7 2009, 20:25
|- - ktf   QUOTE (_mē_ @ Apr 7 2009, 21:25) -8 -A tu...   Apr 13 2009, 18:42
- - tev777   --best here. Why use any other setting when you ca...   Apr 8 2009, 03:53
- - ottl   -8. As many, I think the extra wait is no problem ...   Apr 8 2009, 10:41
- - sshd   -5 is a good default choice. -8 is a waste of ti...   Apr 8 2009, 11:29
- - JJZolx   Less than zero. --max-lpc-order=0 --disable-c...   Apr 20 2009, 02:52
- - frozenspeed   What the heck is flattop?   Apr 20 2009, 03:31
|- - Justin Ruggles   QUOTE (frozenspeed @ Apr 19 2009, 22:31) ...   Apr 20 2009, 14:37
- - hazumi-san   I just started using flac and I used the -8.... en...   Apr 24 2009, 15:45
- - ManekiNeko   Flac -8 makes virtually no difference in compressi...   May 3 2009, 15:36
- - acetylcholine   -8 for me. Using a multi-core processor and it ta...   May 5 2009, 10:10
- - hero   The final size doesn't really differ between t...   May 11 2009, 20:42
- - doccolinni   I use -8. I really don't have any trouble at a...   May 29 2009, 12:18
- - collector   -6, seems to be the best of both worlds. And I...   May 30 2009, 11:43
- - jmcguckin   I've been using -8 for several years now, only...   Jun 22 2009, 17:11


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