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unauthorizedrob
unauthorizedrob
Inspiring
December 6, 2018
Question

Audiobook using Audition CC2019: How to bring audio into ACX requirements?

  • December 6, 2018
  • 2 replies
  • 4459 views

I have been editing an audiobook using Audition CC2019.  There are 52 chapters.  The audio levels with each chapter vary but are generally consistent.  ACX -- the publishing company for audiobooks -- has a requirement that all submissions have an RMS value between -18db and -23db, with a peak no higher than -3db, and a sound floor of -60.

I've run a batch process through the Match Loudness panel, and get a consistent peak of -3.5db, just below the ceiling, but my RMS Values are all too high, ranging from 26 to over -30db.

Anybody with experience in Audiobooks out there with a method that will bring this audio into compliance with ACX?

Thanks for your help.

    This topic has been closed for replies.

    2 replies

    M
    michaelfryar
    Participant
    November 19, 2019

    Quite frankly, I run my final audio through Audacity. There is a Nyquist prompt that someone developed that puts your audio in compliance with ACX. It's not quite perfect, I need to limit it. There is also an add-on that then runs an ACX check on your audio and tells you if it's all set to go.

    I don't see that there is anything similar for the Adobe products.

    Y
    yvesg35131798
    Inspiring
    March 15, 2020

    Wow that would be GREAT to have such a feature in audition!

    SteveG_AudioMasters_
    Community Expert
    SteveG_AudioMasters_Community Expert
    Community Expert
    March 16, 2020

    Yes, but if you read the thread linked to above carefully - especially now the last post in it - you'll realise that there's rather more to it than can be 'fixed' by an app. In fact the app isn't really helping you at all; you don't know what it's done, and if the results still don't meet the requirements you're a bit stuffed. Actually understanding the process, and knowing what it is you have to tweak is a much better way forward.

    SteveG_AudioMasters_
    Community Expert
    SteveG_AudioMasters_Community Expert
    Community Expert
    December 6, 2018

    The basics are in this thread: ACX audiobook submission requirements 60dbRMS, -3db & -23db -18db RMS

    D
    DreamBigVoices
    Participant
    September 14, 2020

    Hi, Steve ~

    I relaize this is an old thread, but I have a similar issue and am not seeing the solution. I have a sound floor of -72db after processing my audio (Parmametric EQ, Dynamic Processing - ave peak and 2:1, normalized to -3db, De-noise and De-click with izotope). ACX says that my RMS is too low by 5.3db. I ran another EQ, adjusting my low pass, which brought my noise floor up to the required -60db, but it did not adjust the RMS. I tried adding compression, but that did not change the RMS much, either. This is my 6th audiobook and I have never had this issue before - and nothing has changed in my set-up, so I am VERY confused as to why this is suddenly a problem. I record into Adobe CC and have an MK4 for a mic, an Apollo Twin as my interface into an I-Mac. Any help would be MUCH appreciated. Thank you.  

    All the Best ~

    Annie

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