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Horrible performance of lossless codecs
Garf
post Jun 17 2003, 18:14
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http://sjeng.org/ftp/vorbis/Garf_Bl33p!.flac

Any idea why the performance of most lossless codecs is so horrible on this very simple signal?
I would expect prediction to be almost perfect for it.

But:

FLAC bitrate:580kbps
APE bitrate:750kbps
WavPack: also >500kbps

ZIP bitrate: 21kbps
7z/RAR bitrate: 2.5kbps
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Posts in this topic
- Garf   Horrible performance of lossless codecs   Jun 17 2003, 18:14
- - k.m.krebs   I just tried it with optimfrog using the 'norm...   Jun 17 2003, 18:39
- - rompel   QUOTE (Garf @ Jun 17 2003 - 09:14 AM)http://s...   Jun 17 2003, 21:12
- - bryant   Those last few percent of compression that the bes...   Jun 17 2003, 22:59
- - jcoalson   QUOTE (Garf @ Jun 17 2003 - 12:14 PM)http://s...   Jun 18 2003, 09:01
- - NumLOCK   Garf, I haven't looked at the WAV yet, but tha...   Jun 18 2003, 09:53
- - NumLOCK   I win ! B) My packer projects brings the .W...   Jun 18 2003, 10:05
- - Atlantis   QUOTE (bryant @ Jun 17 2003 - 10:59 PM)Those ...   Jun 18 2003, 10:07
- - Peter   QUOTE (NumLOCK @ Jun 18 2003 - 09:53 AM)Garf,...   Jun 18 2003, 10:08
- - NumLOCK   QUOTE (zZzZzZz @ Jun 18 2003 - 10:08 AM)If we...   Jun 18 2003, 10:11
- - eltoder   Sorry, Garf, but why you have uploaded FLAC instea...   Jun 18 2003, 12:01
- - Tripwire   QUOTE (Atlantis @ Jun 18 2003 - 01:07 AM)QUOT...   Jun 18 2003, 12:02
- - thop   QUOTE (eltoder @ Jun 18 2003 - 03:01 AM)Sorry...   Jun 18 2003, 12:31
- - anza   At least that sample made me understand the true p...   Jun 18 2003, 12:59
- - Garf   Your modem uses compression, you could say it zips...   Jun 18 2003, 13:02
- - NumLOCK   Zero-knowledge compressors have a big advantage on...   Jun 18 2003, 13:19
- - eltoder   Yes, and bzip is the winner here. It compressed th...   Jun 18 2003, 13:29
- - NumLOCK   RAR 3.x can shrink the wav further to ~4756 bytes,...   Jun 18 2003, 13:37
- - eltoder   QUOTE (NumLOCK @ Jun 18 2003 - 04:37 AM)RAR 3...   Jun 18 2003, 14:00
- - NumLOCK   QUOTE (eltoder @ Jun 18 2003 - 02:00 PM)The m...   Jun 18 2003, 14:09
- - eltoder   QUOTE (NumLOCK @ Jun 18 2003 - 05:09 AM)it...   Jun 18 2003, 14:19
- - NumLOCK   Ok, I'll send it to you tonite Be advised ...   Jun 18 2003, 14:32
- - JamesBond   SBC Archiver 0950 beta: sbc.exe c -m3 -b63 newarc...   Jun 18 2003, 15:22
- - NumLOCK   Very impressive. It blasts away RKIVE, 777... eve...   Jun 18 2003, 15:36
- - eltoder   All of them do. Imagine PPM or BWT without arithme...   Jun 18 2003, 15:50
- - NumLOCK   QUOTE (eltoder @ Jun 18 2003 - 03:50 PM)All o...   Jun 18 2003, 15:55
- - eltoder   QUOTE (NumLOCK @ Jun 18 2003 - 06:55 AM)QUOTE...   Jun 18 2003, 16:29
- - NumLOCK   I wrote a LZ77 or LZW program (can't remember)...   Jun 18 2003, 16:36
- - rjamorim   Garf, could you please make this sample available ...   Jan 5 2004, 19:01
- - bryant   QUOTE (rjamorim @ Jan 5 2004, 10:01 AM)Garf, ...   Jan 7 2004, 07:20


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