RMS Normalize

RMS Normalize … tends to push tracks into clipping.

Correct. That’s why you follow that with Effect > Limiter like it says in the mastering document.

You don’t have to limit at -3.5dB. That’s just the audiobook standard.

And to keep RMS Normalize from responding to excessive low frequency sounds, you start the processing with Effect > Equalize: Low Rolloff for Speech.

-=-

If your problem is widely varying volumes between performers, you might be a candidate for Chris’s Compressor.

I change the first value, Compress Ratio from the default 0.5 to 0.77 and it simulates the leveling/processing at the local radio station. It evens out volume variations and makes the show louder.

Koz