Method

Clipping

True peak clipping count

What we measure and how

True peak clipping count is the number of digital audio samples exceeding 0 dBTP (true peak) — samples that would distort on any downstream DA conversion or further processing. Measured per ITU-R BS.1770-4 Annex 2 with the 4× oversampling inter-sample peak estimator, scanned across the full programme. Reports both the event count and the maximum true-peak value reached; failures suggest the master was peak-normalised rather than loudness-normalised, or had clipping introduced during a re-encode.

Provenance

Standards

ITU-R BS.1770-4 · ITU-R BS.1770-4 Annex 2

Spec fields consulted

These Universal Media Delivery Profile paths resolve this check's thresholds against your spec snapshot at the moment the job was submitted.

• · assets.audio.loudness.true_peak_max

The full UMDP schema: /umdp.

Related methods

• Audio dialnorm
• Audio loudness range
• Audio loudness speech gated
• Audio quasi peak
• Loudness

Method identifier: clipping