Using Audacity 2.3.2 on Windows 10 Enterprise
I am exporting a file as an .mp3 The original passes the ACX Check (Peak -3.01; RMS -22.8; Noise -69) . That exported file fails when uploaded into ACX Audio Lab (although it doesn’t Flag – “No Issues Found”; the downloaded parameters show hot levels) as (Peak -2.82; RMS -23.12; Noise -76.42 [Pass])
When I Re-Import the mp3 file into Audacity and re-run ACX Check on the import, the new ACX Check matches the Audio Lab results.
The book I am doing is a Trivia – as such, I am using a lot of Sound FX ( Syncopated Clock & Transitional Swooshes). I am mixing down to a single, stereo track before the export. I’ve checked the Gain (0db) and the L-R Channel (Center). Remixes to a single channel results the same. I’ve tried exporting with the gain (-1 db), but then the Peak matches the lower setting, but tends to really mess up the RMS (Around -25).
What am I overlooking? How do I adjust?