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FLAC tag and file size ?
post Feb 21 2012, 15:11
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I just noticed that and at a first glance it looks weird to me.

I've encoded 11 FLAC files with FLAC Frontend. I've tagged them (without album cover), but I kept a copy of the untagged files.
When I compare their size, the tagged files and the non-tagged files have the exactly same size (in bytes).
(This changes of course if I add the album cover to the files.)

So why is that that add data to the file doesn't seem to make the file bigger ?
I guess I've used the standard tag files and maybe they have their place reserved even when they are empty ? Or something like that ?

Thank you for the info.
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post Feb 21 2012, 17:43
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If the file is over 20 mins long, FLAC adds 64KB of padding by default!

I have no use for cover art inside a flac file so I find that 8KB of padding is much much too large for my purposes. I can easily get away with 2KB, and most of the time 1KB is more than sufficient even for including replaygain tags.

Use the -P switch to make the padding size smaller than the default. E.g. -P 2048 will give you 2KB, -P 1024 will give you 1KB.
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