Audacity export / quality preservation question


Oct 7, 2009
If i take an ac-3 file, open it in audacity, perform some cuts/splits to it, and the export it (re-encode it) in the exact same hertz(48000) and bit rate(192), and the same file type (.ac3) will i degrade it in quality because i have to re-encode it, or will i end up with essentially the same file?

I have actually tried this, and i did end up with a file that was exactly the same size, but i wasn't sure that same size = same quality. I am looking for an experts opinion who understands the technology involved better than i do.
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