Euphona

Euphona

SOGV2 Limited
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About

Euphona is a browser-based AI audio production platform. Upload a mix, stems or a raw recording and it is analysed once (loudness and dynamics over time, spectral balance, key and tempo, transients and damage). Six capabilities work from that shared analysis: AI mastering with a measured loudness report and a -1.0 dBTP true-peak ceiling by default; stem separation into up to six stems; audio restoration for hum, clicks, noise, clipping and room; vocal tuning; mixing from your own stems; and binaural spatial audio for headphones. Every result is played back level-matched against the original. A developer API runs the same engine, with free test-mode keys. Free no-account browser tools include a loudness checker, BPM and key finder, spectrum analyser, stereo width analyser, clipping detector and vocal remover. Uploaded audio is never used to train models. Plans start free with 10 minutes of processing; paid plans are $15, $29 and $79 per month.

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.

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

Music producers, mixing and mastering engineers, musicians, podcasters, recording studios and labels, and developers who need audio processing through an API

Audience

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

Support

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

Support

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

API

Offers API Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

No images available

Pricing

$15/month
Free: 10 minutes granted once at signup, no card required; the full engine with a level-matched preview, and exports bought per track. Creator: $15/month, 120 minutes. Professional: $29/month, 400 minutes. Max: $79/month, 1,500 minutes. All paid plans include unlimited full-quality exports; annual billing is 17% less. Per track: $0.80 a minute, never below $2 or above $8 per track. Minute packs: 30 minutes for $15 or 100 minutes for $40. Developer API: pay as you go from $0.35 down to $0.15 per processed minute; test mode is free. Prices in US dollars, excluding VAT or sales tax.
Free Version Supported
Free Trial Not Supported

Pricing

$36 per finished hour
Free Version 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

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

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

Company Information

SOGV2 Limited
Founded: 2026
Hong Kong
euphonaai.com/

Company Information

chapterpass
Founded: 2026
Italy
chapterpass.com

Alternatives

Alternatives

Euphona

Euphona

SOGV2 Limited
Automix

Automix

RoEx
Loudness

Loudness

Loudness.fm

Categories

Audio Mastering Supported

Euphona's AI mastering analyses the whole track first (loudness and dynamics over time, spectral balance, transients) and returns a master with a measured loudness report and a -1.0 dBTP true-peak ceiling by default. You audition the master level-matched against your original, so the comparison reflects tone and dynamics rather than extra volume. The same analysis also feeds stem separation, restoration, vocal tuning, mixing and spatial audio, and the engine is available through a developer API.

Categories

Audio Mastering Supported

Integrations

No info available.

Integrations

No info available.
Claim Euphona and update features and information
Claim Euphona and update features and information
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Claim chapterpass and update features and information