OP-59 Loudness Checker (Australia TV)
Check against Free TV Australia OP-59: −24 LKFS ±1 dB integrated, true peak ≤ −2 dBTP.
OP-59 mirrors ATSC A/85's −24 LKFS centre but tightens the tolerance to ±1 dB and caps true peak at −2 dBTP. It is the contractual QC reference for Australian free-to-air networks.
🔒 Everything runs in your browser via the Web Audio API — your audio is never uploaded.
Check against Free TV Australia OP-59: −24 LKFS ±1 dB integrated, true peak ≤ −2 dBTP.
About OP-59 Loudness Checker (Australia TV)
Check against Free TV Australia OP-59: −24 LKFS ±1 dB integrated, true peak ≤ −2 dBTP. OP-59 mirrors ATSC A/85's −24 LKFS centre but tightens the tolerance to ±1 dB and caps true peak at −2 dBTP. It is the contractual QC reference for Australian free-to-air networks.
How to use OP-59 Loudness Checker (Australia TV)
- 1Drag a file onto OP-59 Loudness Checker (Australia TV), or click to choose one — it is analysed locally and never uploaded.
- 2Wait a moment while the tool processes the file entirely in your browser.
- 3Read the result, metrics and pass/fail verdict.
- 4Copy or export the report for your delivery, QC log or records.
Why use OP-59 Loudness Checker (Australia TV)?
- ✓Analyses your file entirely in your browser — it is never uploaded, so even confidential masters stay private.
- ✓Built on a published reference: Free TV Australia Operational Practice OP-59 (Measurement and Management of Loudness).
- ✓100% free with no sign-up, no watermark and no usage limits.
- ✓Works on any device — desktop, tablet or phone — and keeps working offline once loaded.
Frequently asked questions
What does OP-59 Loudness Checker (Australia TV) do?+
Check against Free TV Australia OP-59: −24 LKFS ±1 dB integrated, true peak ≤ −2 dBTP. OP-59 mirrors ATSC A/85's −24 LKFS centre but tightens the tolerance to ±1 dB and caps true peak at −2 dBTP.
Is my file uploaded to a server?+
No. OP-59 Loudness Checker (Australia TV) processes your file entirely in your browser using local JavaScript and the Web platform — your media never leaves your device, so it is safe for unreleased or confidential content.
What standard or source is OP-59 Loudness Checker (Australia TV) based on?+
It follows Free TV Australia Operational Practice OP-59 (Measurement and Management of Loudness). Always confirm against the current official document, as specifications and rates can change.
Is OP-59 Loudness Checker (Australia TV) free to use?+
Yes — it is completely free with no account, no sign-up and no usage limits. There is no watermark and no paywall.
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