EBU R 128 version 5.0 recommends an average programme loudness of -23 LUFS. The normal tolerance is +/-0.5 LU; +/-1.0 LU is allowed for live programmes where the normal tolerance is not practical.
The -1 dBTP threshold is the generic linear-production recommendation. Codec and broadcaster delivery paths can require additional headroom, commonly -2 dBTP, so this preset is a measurement starting point rather than a delivery certificate.
The focused checks use the official EBU loudness test set and its accepted Tech 3341/3342 values. They validate the selected Meter workflow without using an external meter as the authority.
| Official Test | Measurement | Accepted Result | Measured | Status |
|---|---|---|---|---|
| Tech 3341 test 1 - steady reference | Integrated programme loudness | -23.0 +/-0.1 LUFS | -22.950 LUFS | PASS |
| Tech 3341 test 3 - relative gating | Integrated programme loudness | -23.0 +/-0.1 LUFS | -22.971 LUFS | PASS |
| Tech 3341/3342 authentic narrow-range programme | Integrated programme loudness | -23.0 +/-0.1 LUFS | -22.993 LUFS | PASS |
| Tech 3341/3342 authentic narrow-range programme | Loudness Range | 5.0 +/-1.0 LU | 4.900 LU | PASS |
| Tech 3341/3342 authentic wide-range programme | Integrated programme loudness | -23.0 +/-0.1 LUFS | -22.999 LUFS | PASS |
| Tech 3341/3342 authentic wide-range programme | Loudness Range | 15.0 +/-1.0 LU | 15.000 LU | PASS |
| Tech 3341 test 15 - reference true peak | Maximum True Peak | -6.0 +0.2/-0.4 dBTP | -6.000 dBTP | PASS |
| Tech 3341 test 20 - interpolation phase | Maximum True Peak | 0.0 +0.2/-0.4 dBTP | -0.130 dBTP | PASS |
| Tech 3341 test 21 - interpolation phase | Maximum True Peak | 0.0 +0.2/-0.4 dBTP | -0.086 dBTP | PASS |
| Tech 3341 test 22 - interpolation phase | Maximum True Peak | 0.0 +0.2/-0.4 dBTP | -0.181 dBTP | PASS |
| Tech 3341 test 23 - interpolation phase | Maximum True Peak | 0.0 +0.2/-0.4 dBTP | -0.086 dBTP | PASS |