What is the compression percentage of your FLAC library? Options

[JJZolx]

I've always been curious about the average compression rate across my whole FLAC library.

My library is just shy of 36,000 files, with a makeup of about 40% rock, 40% jazz, and the remainder a mixture of bluegrass, country, classical, folk, rap, electronic, etc. It's all encoded at the default -5 level, and the tagging consists of basic text fields, with no embedded images. I compared the total file sizes in bytes to the calculated expanded music size.

It worked out to 41.9% compression on the entire library.

Total FLAC files size: 925.092 GB (993,310,377,824 bytes)
Total uncompressed size: 1580.926 GB (1,708,243,555,030 bytes)
Ratio: 0.581
Compression: 41.9%

[godrick]

tuffy, thank you for posting the script - it works great! I discovered my metadata adds about 1% to my library size.

Using tuffy's script and not counting metadata blocks, my ratio of compressed size over uncompressed size was 52.87%.
Using foobar2000's reported average bitrate of 746 kbps over 1411.2 kbps, my ratio is also 52.87%.