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FLAC1170: a ITU BS.1770 loudness scanner for FLAC
pbelkner
post Dec 2 2012, 17:26
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FLAC1770 is a ITU BS.1770 loudness scanner and tagger for FLAC. For tagging it should do exactly tha same as "metaflac".

Binaries are available for Win32, Linux, and Linux64:
CODE
$ flac1770
FLAC1170 v0.1.0, a ITU BS.1770 loudness scanner for FLAC.

Usage: flac1770 [options] <files>

Options:
  --help: dispaly this usage information and exit.
  --version: dispaly version information and exit.
  --tag: write replay gain tags to the input files (off).
  --r128: use EBU R128 compliant presets (default).
  --a85: use ATSC A/85 compliant presets.
  --rg: use ReplayGain compatible presets.
  --reference=<float>: set reference loudness (-23.0).
  --gate=<float>: set BS.1770 gate (-10.0).
  --partition=<int>: set BS.1770 partition (4).
  --unit=LU|LK|dB: use the respective loudness unit (LU).
  --progress=on|off: display progress percentage (on).
  --true-peak=fast|medium|best|off: determine inter-sample peaks (off).

Some examples:
  • Analyze some individual tracks:
    CODE
    flac1770 track1.flac track2.flac track3.flac


  • Analyze some individual tracks and write RG tags to them:
    CODE
    flac1770 --tag track1.flac track2.flac track3.flac


  • Analyze all tracks from a folder:
    CODE
    flac1770 dir/*.flac


  • Analyze all tracks from a folder and write RG tags to them:
    CODE
    flac1770 --tag dir/*.flac


  • Analyze all tracks from a folder and write RG tags to them, compatible with standard ReplayGain:
    CODE
    flac1770 --rg --tag dir/*.flac


  • Analyze all tracks from a folder, including inter-sample peak determination, and write RG tags to them, compatible with standard ReplayGain:
    CODE
    flac1770 --rg --true-peak=fast --tag dir/*.flac


This post has been edited by pbelkner: Dec 2 2012, 17:30
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eahm
post Dec 2 2012, 17:32
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Thanks for the software.

Shouldn't the / be \?

Also, why is the ReplayGain calculated by flac1770 much different than the one calculated by foobar2000?

This post has been edited by eahm: Dec 2 2012, 17:35
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pbelkner
post Dec 2 2012, 18:38
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QUOTE (eahm @ Dec 2 2012, 17:32) *
Also, why is the ReplayGain calculated by flac1770 much different than the one calculated by foobar2000?

I've uploaded a corrected version 0.1.1: https://sourceforge.net/projects/r128gain/f...s/flac1770/0.1/.

Fortunately only the absolute loudness values displayed in the first column "loudness" where w.r.t the ITU world and not w.r.t. the RG world. The differences between two absolute values doesn't depend on that, and hence the calculated gains where correct.

I don't know how "foobar" calculates replay gain, i.e. whether it uses the RG algorithm or the ITU algorithm. Of course, the results of the two algorithms differ.

This post has been edited by pbelkner: Dec 2 2012, 18:39
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Surfi
post Dec 3 2012, 21:40
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QUOTE (pbelkner @ Dec 2 2012, 18:38) *
I don't know how "foobar" calculates replay gain, i.e. whether it uses the RG algorithm or the ITU algorithm. Of course, the results of the two algorithms differ.
::

from foobar2000 1.1.7 change log:
"Updated ReplayGain scanning code to the latest version of libebur128."

... so shouldn't the results be identical?


Greetings, ...

::
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Posts in this topic
- pbelkner   FLAC1170: a ITU BS.1770 loudness scanner for FLAC   Dec 2 2012, 17:26
- - eahm   Thanks for the software. Shouldn't the / be ...   Dec 2 2012, 17:32
|- - pbelkner   QUOTE (eahm @ Dec 2 2012, 17:32) Shouldn...   Dec 2 2012, 17:42
|- - pbelkner   QUOTE (eahm @ Dec 2 2012, 17:32) Also, wh...   Dec 2 2012, 18:38
|- - Surfi   QUOTE (pbelkner @ Dec 2 2012, 18:38) I do...   Dec 3 2012, 21:40
|- - pbelkner   QUOTE (Surfi @ Dec 3 2012, 21:40) from fo...   Dec 4 2012, 08:22
|- - Surfi   QUOTE (pbelkner @ Dec 4 2012, 08:22) flac...   Dec 4 2012, 11:31
- - Wombat   Hi, finally something to replace metaflac while it...   Dec 3 2012, 03:18
- - skamp   The first two thumbs show the same values, except ...   Dec 4 2012, 11:46
- - Surfi   :: ... so why that many decimals? And why does f...   Dec 4 2012, 12:17
|- - pbelkner   QUOTE (Surfi @ Dec 4 2012, 12:17) I know ...   Dec 4 2012, 18:06
- - Surfi   :: Thanks for answering, all of your tools and yo...   Dec 4 2012, 20:30
- - leo-bogert   Very nice, thank you. This is a component which I...   Dec 4 2012, 21:55
- - Triza   I use loudness command from libebur128. Works grea...   Dec 5 2012, 00:33
|- - Surfi   QUOTE (Triza @ Dec 5 2012, 00:33) That us...   Dec 5 2012, 07:58
|- - Triza   I have read through libebur128 thread and tested a...   Dec 5 2012, 21:28
|- - Surfi   QUOTE (Triza @ Dec 5 2012, 21:28) ... Qua...   Dec 6 2012, 11:29
- - jangk   Target for EBU R128 is -23dBFS, but this possibly ...   Dec 6 2012, 12:15
|- - Surfi   QUOTE (jangk @ Dec 6 2012, 12:15) Target ...   Dec 6 2012, 15:35
|- - pbelkner   QUOTE (Surfi @ Dec 6 2012, 15:35) Have a ...   Dec 6 2012, 17:39
- - Singtoh   Hello All, Just stumbled upon the r128gain progra...   Dec 6 2012, 13:22
- - Surfi   :: Thank you very much for clarifying. ::   Dec 6 2012, 21:02
- - Singtoh   Hello All Again, I am not sure if this is the cor...   Dec 7 2012, 05:15
|- - pbelkner   QUOTE (Singtoh @ Dec 7 2012, 05:15) 3. Th...   Dec 7 2012, 07:42
- - Singtoh   Sure thing, and thanks again for your hard work on...   Dec 7 2012, 07:59
|- - pbelkner   QUOTE (Singtoh @ Dec 7 2012, 08:59) Sure ...   Dec 7 2012, 17:42
- - pbelkner   FLAC1770 v0.2.0 released What's new? Test cas...   Dec 7 2012, 20:15
|- - pbelkner   FLAC1770 v0.3.0 released What's new? Computat...   Dec 9 2012, 21:47
- - Wombat   QUOTE (pbelkner @ Dec 7 2012, 21:15) FLAC...   Dec 7 2012, 20:23
|- - pbelkner   QUOTE (Wombat @ Dec 7 2012, 21:23) How to...   Dec 7 2012, 21:53
- - Wombat   QUOTE (pbelkner @ Dec 7 2012, 22:53) By u...   Dec 7 2012, 23:24
- - JJZolx   As a casual follower of these threads, is there a ...   Dec 8 2012, 06:01
|- - pbelkner   QUOTE (JJZolx @ Dec 8 2012, 07:01) As a c...   Dec 8 2012, 07:33
- - pbelkner   FLAC1770 v0.4.0 released Download: https://sourcef...   Dec 12 2012, 18:28
- - pbelkner   FLAC1770 v0.4.1 released Download: https://sourcef...   Dec 19 2012, 18:58


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