After a lot of help from this forum, I’m producing my first audiobook on ACX.
Anyway, I’m easily able to get the recordings within the parameters demanded by ACX, passing the ACX analysis on Audacity, passing the test on ACX itself - but realise this by no means guarantees it will be okayed by ACX when it comes down to it.
I normally record at night to keep the floor level noise down, but sometimes do it during the day if all seems quiet. Difficult to be sure though, you can miss all sorts of background noise when you are recording!
But anyway, I’ve recently noticed people worrying that it can be turned down for the sound levels not being consistent with different chapters throughout the book.
After the mastering suggested here, here is what the first few chapters I did came out as after running it through the Audacity ACX analysis, with the RMS level for each chapter given next to its corresponding Noise floor.
All peak level -3.5Db.
RMS level Noise Floor
Do those figures seem as if they would cause any problems? (I realise it is impossible to go just by the figures themselves, but presumably they can give some sort of indication.)