ToolJoltTools

Loudness Metering Window Explainer

Enter a programme length and see how many momentary (400 ms), short-term (3 s) and integrated measurement windows it contains — and which metric to trust for what.

Momentary blocks (400 ms, 100 ms hop)
Short-term windows (3 s, 1 s hop)
Integrated measurements

EBU-Mode metering reports three time scales: momentary (400 ms) for catching transient peaks, short-term (3 s) for riding levels during a mix, and integrated (the whole programme, gated) for the single delivery number. Specs almost always judge the integrated value; momentary/short-term are mixing aids and short-form Max-ST limits.

Rule / Formula

momentary: 400 ms window / 100 ms hop · short-term: 3 s / 1 s hop · integrated: one gated value over the whole programme
References: EBU Tech 3341 (EBU Mode); ITU-R BS.1770-4 (gating)

Enter a programme length and see how many momentary (400 ms), short-term (3 s) and integrated measurement windows it contains — and which metric to trust for what.

About Loudness Metering Window Explainer

Enter a programme length and see how many momentary (400 ms), short-term (3 s) and integrated measurement windows it contains — and which metric to trust for what. EBU-Mode metering reports three time scales: momentary (400 ms) for catching transient peaks, short-term (3 s) for riding levels during a mix, and integrated (the whole programme, gated) for the single delivery number. Specs almost always judge the integrated value; momentary/short-term are mixing aids and short-form Max-ST limits.

How to use Loudness Metering Window Explainer

  1. 1Enter your values into the fields in Loudness Metering Window Explainer.
  2. 2The result and any pass/fail verdict update instantly as you type — no button to press.
  3. 3Check the substituted formula and worked example to see exactly how the result was derived.
  4. 4Copy or note the result for your spec, delivery or planning.

Why use Loudness Metering Window Explainer?

  • Runs entirely in your browser with instant, private results — no data leaves your device.
  • Built on a published reference: EBU Tech 3341 (EBU Mode).
  • Shows the governing formula and a worked example, so you can trust and check every result.
  • 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 Loudness Metering Window Explainer do?+

Enter a programme length and see how many momentary (400 ms), short-term (3 s) and integrated measurement windows it contains — and which metric to trust for what. EBU-Mode metering reports three time scales: momentary (400 ms) for catching transient peaks, short-term (3 s) for riding levels during a mix, and integrated (the whole programme, gated) for the single delivery number.

Is my data private?+

Yes. Loudness Metering Window Explainer runs entirely in your browser — your inputs are never uploaded, stored or logged.

What standard or source is Loudness Metering Window Explainer based on?+

It follows EBU Tech 3341 (EBU Mode); ITU-R BS.1770-4 (gating). Always confirm against the current official document, as specifications and rates can change.

What formula does it use?+

Loudness Metering Window Explainer uses: momentary: 400 ms window / 100 ms hop · short-term: 3 s / 1 s hop · integrated: one gated value over the whole programme. The tool shows this formula with your own numbers substituted so you can verify the result.

Is Loudness Metering Window Explainer 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.

Embed Loudness Metering Window Explainer on your website

Want Loudness Metering Window Explaineron your own site? Paste this snippet into any HTML page — it's free, with no API key or sign-up. The tool loads in an iframe and keeps working exactly as it does here.

Embed code
<iframe src="https://tooljolt.com/tools/loudness-metering-window-calculator" width="100%" height="640" style="border:1px solid #e5e7eb;border-radius:12px;max-width:680px" title="Loudness Metering Window Explainer — ToolJolt" loading="lazy"></iframe>

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