LOUDNESS LAB / VALIDATION NOT COMPLETE

Measure loudness as a lab result, not a certified claim.

Run the current browser-local K-weighted and gated estimate, inspect peak and gate details, and keep the validation status attached to the number.

LAB / NOINDEX
FILE BOUNDARYThe selected file enters browser memory only. There is no server upload path, and the source is never overwritten.

LAB · EXPERIMENTAL

LUFS Meter LAB

Experimental BS.1770-style estimate with visible gating. It is not a compliance measurement; your file stays in the browser.

250 MB maximum. Browser decode support varies by format and device.

METHOD / LIMITS / CHECK

The output rule should be as clear as the button.

01

Processing method

  1. Decode audio into browser-local PCM.
  2. Apply the implemented weighting and block measurement.
  3. Show the absolute and relative gating rule.
  4. Report the estimate beside its LAB validation status.
02

Known limits

  • LAB and noindex until reference fixtures pass.
  • Not a substitute for a calibrated broadcast compliance meter.
  • Browser decode behavior can affect the result.

FAQ / TRUST

Answers that belong before file selection.

Does my audio leave this device?

No. The current workspace reads and processes the selected file in browser memory.

Will Sonelora overwrite my source?

No. Every change exports a new file; the selected source stays untouched.

Why is this page marked LAB?

The implementation exists, but the release gate remains closed until reference fixtures match accepted tolerances.