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About

Audible's ACX has eight technical checkpoints, and a file that misses one comes straight back. chapterpass masters each chapter file to spec: RMS loudness between -23 and -18 dBFS, peaks held below -3 dBFS, a noise floor under -60 dBFS RMS, room tone at the head and tail, and a 192 kbps CBR MP3 on the way out. Every output is verified against the full spec before download, and you see the measured value next to the requirement for each checkpoint. The processing runs in your browser through WebAssembly, so your audio never leaves your device. There is no account to create. Your first file is free, then $36 per finished hour, $27 from 5 hours, $18 from 10 hours, billed by the second. A free measurement page at /free-acx-check reads your loudness, peak, noise floor and silence padding against the spec without mastering anything. chapterpass masters the measurable technical specs. It does not edit your recording, remove noise, or fix narration.

About

e-SPECS is the industry leading specification writing software for today’s AEC professionals. Write, edit and coordinate your architectural and engineering specs more quickly and efficiently with e-SPECS Linx. Proven faster and easier than word processing, e-SPECS Linx combines the efficiency of our Checklist technology with the ease of the e-SPECS Editor. Use your current AIA MasterSpec subscription or integrate your Custom Office Master to simplify specification production while saving time and money in the process. e-SPECS for revit extends Autodesk’s products to construction specifications. Link, sync & integrate Revit with your construction specifications using e-SPECS: automating the creation of your manual. For users not ready or not interested in Revit integration, e-SPECS Linx will create a higher quality project manual.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Audiobook narrators, indie authors narrating their own books, audiobook producers and post-production studios preparing files for Audible ACX

Audience

Architects and engineers looking for a cost-effective, efficient alternative in specification platform

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

No images available

Screenshots and Videos

Pricing

$36 per finished hour
Free Version Supported
Free Trial Not Supported

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Not Supported
Webinars Supported
Live Online Supported
In Person Not Supported

Company Information

chapterpass
Founded: 2026
Italy
chapterpass.com

Company Information

e-SPECS
Founded: 1988
United States
e-specs.com/products/

Alternatives

Euphona

Euphona

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Alternatives

RIB SpecLink

RIB SpecLink

RIB Software
PlusSpec

PlusSpec

RubySketch
KCL

KCL

Revalize
Loudness

Loudness

Loudness.fm
OpenSpec

OpenSpec

Fission AI

Categories

Audio Mastering Supported

Categories

Architecture Features

2D Drawing Not Supported
3D Modeling Not Supported
Bills of material Supported
BIM Modeling Not Supported
Building Information Modeling Supported
Client Management Not Supported
Contact Management Supported
Contract Management Not Supported
Document Management Not Supported
Drafting Not Supported
Manufacturing Design Data Not Supported
Presentation Tools Supported
Project Management Not Supported
Proposal Management Not Supported
Quotes/Proposals Supported
Visualization / Presentation Not Supported

Integrations

No info available.

Integrations

No info available.
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