ITU-R BS.1770-4 & Broadcast Mastering
Audio Loudness and Delivery Check
Measure integrated LUFS, true peak (dBTP), loudness range (LRA), and noise floor according to ITU-R BS.1770-4. Verify ACX audiobook rejection limits, Spotify (−14 LUFS), Apple Music (−16 LUFS), and EBU R128 (−23 LUFS). Auphonic charges $11–89/mo and NUGEN VisLM charges $382; this measures directly in your browser.
100% Client-Side Privacy: Audio decoding and K-weighting filter calculations happen entirely on your computer.
Select or Drop Audio Track
Supports WAV, MP3, AIFF, AAC, and FLAC mastering files.
Next in this job
Chosen from where these tools sit in the catalogue — the same workbench, the same category, the same words. Nothing here measures what you or anyone else opened.
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