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Description
MasterCheck serves as a comprehensive optimization tool designed for modern delivery services, acting as a plug-in that equips you with the necessary resources to ensure your music is delivered to listeners exactly as you envisioned. Various streaming platforms, download stores, and podcasts utilize data compression, loudness normalization, or a combination of these methods. Unfortunately, these techniques can lead to unfavorable outcomes for your tracks: what may originally be a vibrant and energetic mix could turn out to be subdued and lifeless, or may even experience clipping and distortion. MasterCheck identifies these issues in advance, empowering you to produce masters that are finely tuned for particular playback systems. By illustrating the impacts of loudness normalization, MasterCheck helps you discover the ideal balance between perceived loudness and dynamic range, while also allowing you to anticipate any artifacts that may arise from the encoding process. This tool enables you to pinpoint the threshold at which these modifications begin to adversely affect your music, effectively restoring your creative control in the mastering process. Overall, MasterCheck is an essential ally in ensuring that your audio maintains its intended quality across all platforms.
Description
Audible's ACX outlines a total of eight technical standards, and any file that fails to meet even one of them is promptly rejected. Chapterpass meticulously prepares each chapter file to comply with these specifications, ensuring RMS loudness is maintained between -23 and -18 dBFS, peaks are capped at below -3 dBFS, the noise floor is under -60 dBFS RMS, and room tone is present at both the beginning and end, all while outputting a 192 kbps CBR MP3. Every file is reviewed for compliance with the complete specifications before it is made available for download, and users can see the actual measurements aligned with each requirement for all checkpoints. The processing is conducted within the user's browser via WebAssembly technology, guaranteeing that the audio files remain on the user's device throughout the process. There is no need to set up an account to use the service; the first file is complimentary, with subsequent charges of $36 per finished hour, $27 for five or more hours, and $18 for ten or more hours, all billed by the second. Additionally, a free measurement tool can be accessed at /free-acx-check, which evaluates the loudness, peak levels, noise floor, and silence padding against the specifications without conducting any mastering. Chapterpass is dedicated to mastering the necessary technical standards, although it does not perform any editing, noise removal, or corrections to narration. This ensures a streamlined process for creators looking to comply with ACX requirements efficiently.
API Access
Has API
API Access
Has API
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Integrations
No details available.
Integrations
No details available.
Pricing Details
$199 one-time payment
Free Trial
Free Version
Pricing Details
$36 per finished hour
Free Trial
Free Version
Deployment
Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook
Deployment
Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook
Customer Support
Business Hours
Live Rep (24/7)
Online Support
Customer Support
Business Hours
Live Rep (24/7)
Online Support
Types of Training
Training Docs
Webinars
Live Training (Online)
In Person
Types of Training
Training Docs
Webinars
Live Training (Online)
In Person
Vendor Details
Company Name
NUGEN Audio
Founded
2004
Country
United Kingdom
Website
nugenaudio.com/mastercheck
Vendor Details
Company Name
chapterpass
Founded
2026
Country
Italy
Website
chapterpass.com