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MAC APP

LevelMark

Check audio loudness against a delivery spec, file by file

Drop a folder of audio and every file is measured (integrated loudness, loudness range, sample peak and true peak) and marked pass or fail against a named delivery spec, with the difference from the target. Pro checks whole folders, writes CSV and PDF reports for the client, and makes gain-only fixed copies.

$19.99 Buy now Download free

Free to use without a key: up to 3 files at a time against every preset, with the full table and pass/fail reasons.

Buy a license key to unlock Pro: whole folders and subfolders at once, CSV and PDF reports, and gain-only fixed copies that are measured again.

macOS 14 Sonoma or later · Version 1.0 · 2.7 MB disk image · Notarized by Apple

One-time $19.99 for the app with Pro: whole folders at once, CSV and PDF reports, and gain-only fixes. No subscription. One license key works on up to 3 of your Macs.

Download: The download (a signed, notarized .dmg) comes with your purchase in your Gumroad receipt, together with your license key. Updates install from inside the app.

Buy now opens Gumroad's checkout on this page; Gumroad is the seller and handles payment, sales tax and your receipt.

Nine podcast episodes checked against Apple Podcasts: loudness, difference, true peak and range, with Pass or Fail for each

Features

  • Integrated loudness, loudness range, max short-term, sample peak and true peak for every file
  • Pass or fail against EBU R 128, Apple Podcasts, Spotify, YouTube or ATSC A/85, with the difference from the target
  • Each preset shows its source, and a caution where a target isn’t published or LevelMark doesn’t measure the spec’s way
  • Gain-only fix: new copies at the target, never over the true-peak ceiling; a file that needs a limiter is refused with the reason
  • Fixed copies are new files next to the originals (or in a folder you choose), never overwriting anything
  • CSV spreadsheet and a PDF pass/fail report to send with a delivery
  • Written to ITU-R BS.1770-4 and EBU Tech 3341/3342, tested with the EBU’s test signals; a quality-control tool, not a certified meter
Gain-only fixes: new copies at −16 LUFS with their true peaks, and one file that needs a limiter
TV spots checked against ATSC A/85, with the caution to check the spec before relying on it
The free version checking the first 3 of 12 files, with a note that Pro checks whole folders

Requirements

macOS 14 Sonoma or later. Apple silicon and Intel. Reads WAV, AIFF, MP3, AAC/M4A, FLAC and CAF. Current version: 1.0.

Privacy

Your audio never leaves your Mac: files are read where they are, and fixed copies are written as new files. The only network requests are the license check with Gumroad and checking for updates.

LevelMark privacy policyHelp and support

Questions about your purchase or license key? Reply to your Gumroad receipt or contact us.