Setting RMS Range / Noise Floor / Peak Value

[Versatile Voiceovers]

Hi,

 

I am about to start production on an audiobook for Audible. Among other requirements of the sound file, they specify that each audio file (chapter) must measure between -23dB and -18dB RMS and have -3 dB peak values and a maximum -60dB noise floor. My space is -55dB noise floor. How do I pre set the parameters in Logic before recording in order that I meet these requirements with each chapter of the book that I record?

 

My version of Logic is 10.2.4.

 

Many Thanks for reading this,

 

Paul.

[niteboatermusic]

your stat below is misquoted, ACX requires a MINIMUM of -60db in quietness. Their wording is perhaps misleading, but they do refer to "floor".

 

"a maximum -60dB noise floor"

 

This means your room tone, when measured by tools like Adobe Audition, or REAPER, or other tools, cannot show the file as being louder than -60db. There is nothing you can set in Logic to make your space intrinsically quieter.

 

In order to increase your quietness (my term) - you can add mass to the walls of your booth, thicker beefier door, more drywall, more padding, etc. 

 

Hope this helps any others reviewing this topic.

[Versatile Voiceovers]

Hey Niteboater,

 

Thanks for the post. In terms of noise floor I am fine, as I have a relatively low one.

 

Ensuring that RMS sits between -23 and -18 and peak of -3db is the key thing, as the book will be rejected otherwise. O you have any leads on this aspect?

 

Thanks for reaching out,

 

Paul.

[David Nahmani]

Paul, where are your peaks currently when you adjust the volume so that the RMS sits between -23 and -18 dBFS?

 

Also, are the guidelines to have your peaks exactly at  -3 dBFS, or maximum -3 dBFS?