Australia commercial TV loudness spec
What a file has to measure to pass this spec, and where each figure comes from.
| Check | Required | In LC-1 |
|---|---|---|
| Integrated loudness | −24.0 ±1 LKFS | Fixed with a level change |
| True peak | −2.0 dBTP max | Limited, with audition |
| Top and tail silence | 12 frames under −70 dBFS | Muted, with audition |
| Length | Exact, at 25 fps | Flagged |
| Format | 48 kHz | Flagged |
Worth knowing
The 12 frames of silence are an Australian rule. The −70 dBFS silence level is XR’s recommended figure.
Data source(s)
- Free TV Australia OP-59 issue 4 (October 2018) and OP-29 issue 9
- XR Australia and New Zealand spec
Figures taken from the documents above and last read on 10 October 2026.
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