FLAC: Difference between revisions
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[[Category: | [[Category:Computer]] | ||
http:// | ==Overview== | ||
'''Free Lossless Audio Codec''' | |||
* is an open format | |||
* is an royalty-free format | |||
* has support for tagging | |||
* has support for [[cover art]] | |||
* has support for fast seeking. | |||
* has software support made available | |||
** https://xiph.org/flac/links.html#software | |||
** including free software implementation | |||
* has hardware support https://xiph.org/flac/links.html#hardware | |||
* is used | |||
** by the [[European Broadcasting Union]] [http://www.ebu.ch/en/radio/ops_rdo/faq/index.php] | |||
Read more about FLAC: https://xiph.org/flac/documentation.html | |||
The official website can be found at https://xiph.org/flac , the download section at https://xiph.org/flac/download.html and the download link for Windows as of 2011-01-01 is http://downloads.sourceforge.net/flac/flac-1.2.1b.exe | |||
==Compression ratios== | ==Compression ratios== | ||
*7333 | A compression ratio estimate: | ||
*7333 audio files, (in 429 folders), winamp: 14 days+14:25:43 | |||
**wav - 207 GB (223.171.483.886 Bytes) | **wav - 207 GB (223.171.483.886 Bytes) | ||
**flac 1.1.2, 1.1.3 - ca. 89,0 GB (95.627.346.550 Bytes) ratio = 0.428492677 | ***flac 1.1.2, 1.1.3 - ca. 89,0 GB (95.627.346.550 Bytes) ratio = '''0.428492677''' | ||
**flac 1.2.1b - 86,3 GB (92.729.301.460 Bytes) ratio = 0.415506945 | ***flac 1.2.1b - 86,3 GB (92.729.301.460 Bytes) ratio = '''0.415506945''' | ||
{| class="wikitable" | |||
!# of files || GB || playing time | |||
|- | |||
|7333|| 86,3 || 350h 25min | |||
|- | |||
|1000 || 12 || 48h | |||
|- | |||
|250 || 3 || 12h | |||
|- | |||
|84 || 1 || 4h | |||
|} | |||
2018-08-07 foobar: | |||
*18603 | |||
*222 GB (238 930 620 688 bytes) | |||
*5wk 3d 6:24:38.578 (145 806 885 275 samples) : ((((5*7+3)*24)+6)*60+24)*60+38.578 = 3306278.578 | |||
**(44100*16*2)*3306278.578 / 8 = 583227541159 bytes | |||
**238930620688/583227541159 = 0.40966964662 | |||
==File size== | |||
Average tango file per above sample is | |||
*wav | |||
**223 171 483 886 / 7333 = 30 433 858.4 byte | |||
**(223 171 483 886 / 7 333) * 8 = 243 470 867 bit | |||
*flac | |||
**92 729 301 460 / 7333 = 12 645 479.5 byte | |||
** (92 729 301 460 / 7 333) * 8 = 101 163 836 bit ~ 100 Mbit | |||
==Data security== | |||
2008-02-20 [[User:Chrisjjj]] : For me most important is security of data. I have seen programs such as [[MediaMonkey]] have only recently had fixes to bugs that corrupted FLAC files so, though not the fault of FLAC, sadly I think more time is needed before FLAC is as safe to use as older formats. | |||
Latest revision as of 2018-08-07T19:04:45
Overview
Free Lossless Audio Codec
- is an open format
- is an royalty-free format
- has support for tagging
- has support for cover art
- has support for fast seeking.
- has software support made available
- https://xiph.org/flac/links.html#software
- including free software implementation
- has hardware support https://xiph.org/flac/links.html#hardware
- is used
- by the European Broadcasting Union [1]
Read more about FLAC: https://xiph.org/flac/documentation.html
The official website can be found at https://xiph.org/flac , the download section at https://xiph.org/flac/download.html and the download link for Windows as of 2011-01-01 is http://downloads.sourceforge.net/flac/flac-1.2.1b.exe
Compression ratios
A compression ratio estimate:
- 7333 audio files, (in 429 folders), winamp: 14 days+14:25:43
- wav - 207 GB (223.171.483.886 Bytes)
- flac 1.1.2, 1.1.3 - ca. 89,0 GB (95.627.346.550 Bytes) ratio = 0.428492677
- flac 1.2.1b - 86,3 GB (92.729.301.460 Bytes) ratio = 0.415506945
- wav - 207 GB (223.171.483.886 Bytes)
| # of files | GB | playing time |
|---|---|---|
| 7333 | 86,3 | 350h 25min |
| 1000 | 12 | 48h |
| 250 | 3 | 12h |
| 84 | 1 | 4h |
2018-08-07 foobar:
- 18603
- 222 GB (238 930 620 688 bytes)
- 5wk 3d 6:24:38.578 (145 806 885 275 samples) : ((((5*7+3)*24)+6)*60+24)*60+38.578 = 3306278.578
- (44100*16*2)*3306278.578 / 8 = 583227541159 bytes
- 238930620688/583227541159 = 0.40966964662
File size
Average tango file per above sample is
- wav
- 223 171 483 886 / 7333 = 30 433 858.4 byte
- (223 171 483 886 / 7 333) * 8 = 243 470 867 bit
- flac
- 92 729 301 460 / 7333 = 12 645 479.5 byte
- (92 729 301 460 / 7 333) * 8 = 101 163 836 bit ~ 100 Mbit
Data security
2008-02-20 User:Chrisjjj : For me most important is security of data. I have seen programs such as MediaMonkey have only recently had fixes to bugs that corrupted FLAC files so, though not the fault of FLAC, sadly I think more time is needed before FLAC is as safe to use as older formats.