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Top Forums UNIX for Dummies Questions & Answers How to find untagged audio files? Post 302481963 by MrZehl on Monday 20th of December 2010 09:37:55 AM
Old 12-20-2010
Quote:
Originally Posted by radoulov
Assuming GNU system:

Code:
find -regextype awk -iregex '.*\.(mp3|flac)$' -print0 |
  xargs -0 id3 -l -R |
    awk -F: 'END { if (f) print $2 }
      /^Filename:/ { fn = $2; if (f) print $2; f = x }
      /^(t(itle|rack)|a(rtist|lbum)):/ && $2 ~ /track|unknown/ {
        f++
        }' IGNORECASE=1

If the above pipe-line throws an error, let us know what system are you using.
Wow, that is an educating command for me. Smilie
I use Ubuntu 10.10 and this doesn't give an error, but it doesn't work properly either.

First it found nothing in my test directory, which contains one mp3 album and a flac album.
That was expected because all tags were filled. Well not really expected, because there is only tested on id3 tags and my Flac files don't have id3 tags. So with the command above I should expect to show all my flac files. metatag should be used for
But all mp3 tags were filled. So I changed that. I emptied a title from one track, renamed another track to 'track' and another one to 'unknown'.

I would expect to show these 3 files, but when I tried again, he found 2 files. None of those were changed. He found 1 allright mp3 track and 1 allright flac track.

Strange, isn't it?

Ah... I tested some more and it looks like there isn't tested on an empty tag so it's correct that only two tracks are found, but there seems something wrong with the order of the tracks in the stream so I get 2 random files as output.

So to be perfected the command should be extended with the following:
- mp3 files should be tested with id3, flac with metaflac
- empty tracks should be recognised as well, where only spaces count as empty
- if an mp3 file has no id3 tag or a flac has no FLAC Vorbis tag I think it can be counted empty as well. But that is probably to hard to include that restriction in just one commandline. It's a minor.
- and last but not least: the right files should be reported.

And now I'm going to try to understand what you did in that commandline. It looks very interesting. Smilie
Maybe I'll can figure it out now before you do. Who knows.

I like the dirty trick t(itle|rack)|a(rtist|lbum) although it's 2 actually characters more than title|track|artist|album, it is a nice demonstration of the possibilities.

Last edited by MrZehl; 12-20-2010 at 10:38 AM.. Reason: typo
 

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COLLECTIONGAIN(1)						       rgain							 COLLECTIONGAIN(1)

NAME
collectiongain - large scale Replay Gain calculating tool SYNOPSIS
collectiongain [options] music_dir collectiongain --help collectiongain --version DESCRIPTION
collectiongain is a script calculating the Replay Gain values of a large set of music files inside music_dir. Each audio file will be rec- tified against the other files of the same album, which are identified using the file tags. OPTIONS
--version Display the version of the software. -h, --help Display a short summary of the available options. -f, --force Recalculate Replay Gain even if the file already contains gain information. -d, --dry-run Don't actually modify any files. -r REF, --reference-loudness=REF Set the reference loudness to REF dB (default: 89 dB) --mp3-format=MP3_FORMAT Choose the Replay Gain data format for MP3 files. Since there is no commonly accepted standard for Replay Gain in MP3 files, you need to choose. Possible formats are : o ql (used by Quod Libet). This is the default value. o fb2k (read and written by foobar2000, also understood by Quod Libet) o mp3gain (tags as written by the mp3gain program; this doesn't modify the MP3 audio data as said program does). --ignore-cache Don't trust implicit assumptions about what was already done, instead check all files for Replay Gain data explicitly. SEE ALSO
replaygain(1) 1.0 2011-11-26 COLLECTIONGAIN(1)
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