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Topic: Verify that a music file (mp3, flac, m4a, opus) has a replaygain tag? (Read 263 times) previous topic - next topic
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Verify that a music file (mp3, flac, m4a, opus) has a replaygain tag?

Hello. I am not sure where to ask this so please tolerate me.

Basically I am writing a script to find music files in my library (consisting of mp3, flac, m4a and opus files) that do not have a replaygain tag. But I am really sure how to check if a file has a replaygain tag. Right now what I am doing is:

  • if a file uses id3 tags (as mp3 and flac files do), look for tags that have "replaygain" in them. I am just checking for "replaygain" because I have noticed that different tools name the tags differently. Plus there are replaygain tags for both albums and tracks.
  • if a file uses vorbis comments (like opus), look for r128 tags. Reasoning is similar to above.

I am not sure if this is the correct way. It's just based on my observation of what replaygain tags look like and I don't know anything about the specification. Any hints or suggestions?

Re: Verify that a music file (mp3, flac, m4a, opus) has a replaygain tag?

Reply #1
Are you learning how to write such a script, or are you just interested in getting the job done?

(Both Mp3tag and foobar2000 can do the job for you.)
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Re: Verify that a music file (mp3, flac, m4a, opus) has a replaygain tag?

Reply #2
Are you learning how to write such a script, or are you just interested in getting the job done?

(Both Mp3tag and foobar2000 can do the job for you.)

This is more for a learning experience. Trying to get better at Python and Rust so trying to use those for it. Thanks for the suggestion though because I can use those to verify the result of whatever I come up with eventually.

 

Re: Verify that a music file (mp3, flac, m4a, opus) has a replaygain tag?

Reply #3
FLAC, Vorbis and Speex have regular Replaygain tags. Only Opus is the odd one.