AUDIOBOOKS UNLEASHED SPECIFICATIONS 

Labeling:  

• All files should be delivered in one ZIP file, labeled as “Title of Audiobook”.
• Each audiobook file must start with FileNumber_TitleofAudiobook_ChapterName
• See this example:

001_TheGreatGatsby_OpeningCredits

002_TheGreatGatsby_Chapter1

003_TheGreatGatsby_ClosingCredits

• The sample should be labeled as “TitleofAudiobook_Sample”.
• The cover should be labeled as “TitleofAudiobook”.

Technical Specifications:

*We follow these specifications strictly, so please double check your files or they will be rejected and subject to delays!*

• Files must be MP3 files, delivered in one ZIP file.
• Chapters may not be longer than 120 minutes.
• Files must be in either all mono or all stereo. (Mono is the standard.)
• Constant bit rate of 192 kbps or higher.
• Sample rate of 44.1 kHz.
• Maximum noise floor of -60dB.
• Peaks below -3db.
• RMS between -23db and -18db RMS.

• We recommend… normalizing the RMS of all files to -20db. (Be sure to double check the peaks and noise floor are still within specifications.) Ideally, you want the average RMS for the entire audiobook to fall within -21db and -19db RMS.

• Files must start and end with room tone – Room tone length at the head of files must be 0.5 – 1.0 seconds and under 5.0 seconds at the tail of files.

• We recommend… having 0.75 seconds of room tone at the head of files and 2 seconds at the tail of files.

• No extraneous noises, including but not limited to: Rumbling, hisses, noise in the background, split breaths, and excessive mouth clicks.

Credits: 

• Each audiobook must have Opening Credits and Closing Credits.

• Suggested opening credits only include: Title, Name of Author(s), Name of Narrator(s).  

• Example: “This is Romeo and Juliet, written by William Shakespeare, narrated by Kate Minola.”

• Suggest closing credits include: Title, Name of Author(s), Name of Narrator(s), Copyright (of the manuscript), Production Copyright.  

• Example: “This has been Romeo and Juliet, written by William Shakespeare, narrated by Kate Minola. Copyright 1594 by William Shakespeare, Production Copyright 2020 by William Shakespeare.”  

Specifications for the Sample: 

• A sample of the audiobook should be included and labeled as “TitleofAudiobook_Sample”.
• Length between 1 – 5 minutes.
• No explicit (e.g. violent or pornographic) material is allowed.

Cover Photo:

• Please name the cover photo as the “TitleofAudiobook”.
• We accept JPG or PNG files.
• A maximum of 8 MB in size 
• The cover must show the Title and Author.

• Narrator names are strongly suggested, but not mandatory. We also suggest adding any Series info, if applicable.

• It must be a square – Do not add borders to make your ebook cover a square.
• Do not put anything on the cover that looks like a physical product is being bought. (CD cases, physical book covers, toys, etc.)
• Specifications:
• Preferred: 3000 x 3000 px, 300 dpi, 24-bit color, RGB format only
• Minimum: 2400 x 2400 px, 72 dpi, 24-bit color, RGB format only

•  Need help? Use this link to convert your photo to the right specifications. (Your photo must already be a square!)  

• Here are the minimum settings you should enter

Thank you!

View this information as a word document here.