How to edit 24/96 FLAC and preserve quality

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Apesbrain
Posts: 95
Joined: Sat Dec 04, 2010 4:58 pm
Operating System: Windows 10

How to edit 24/96 FLAC and preserve quality

Post by Apesbrain » Fri Dec 17, 2010 3:04 am

I have two 24/96 FLAC files created from a vinyl rip and I'd like to remove the surface noise between them. I can open the files with Audacity and edit the offending areas to silence but I want to be sure that when I export the edited files back to 24-bit FLAC I don't create any changes in the remainder of the data. I know "lossless is lossless" but does it matter that Audacity opens and edits the files as 32-bit floating and I want to export as 24-bit FLAC? Thanks.
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Apesbrain
Posts: 95
Joined: Sat Dec 04, 2010 4:58 pm
Operating System: Windows 10

Re: How to edit 24/96 FLAC and preserve quality

Post by Apesbrain » Fri Dec 17, 2010 2:15 pm

I think I answered my own question: opening one of the original 24/96 FLAC files in Audacity and exporting it as FLAC 24-bit did NOT create a bit-identical file according to foobar2000's "Bit-Compare" utility. However, exporting from Audacity as "Other uncompressed files" and selecting "WAV - 32-bit float" then using foobar2000 to convert to FLAC 24-bit (no dither) did create a bit-identical file. I ended up editing the files in Audacity and following the second procedure.

Am I full of it or is there some reason why I got these results? This is with Audacity 1.3.12 on Win 7 x64. Thanks.
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