I’m wondering how I got so far off the forum flow…
Are you heading for ACX? Yes, ACX reeeely, reeely wants your chapters to match.
Are your using our ACX-Check and Audiobook Mastering? That saves a lot of work.
ACX-Check will test for background noise. Last I looked, the on-line ACX-Labs doesn’t. High background noise kills a lot of performers.
Koz