Audio has no SCTE-35 21. The DAI server feeds the stream to a detector 1 that scores silence ≥500ms, energy drops, and cue points 2. Most moments fail the gate — no break, no request. When detection fires 3, rqddurs 33 hard-filters duration and mincpmpersec sets per-second floors 4. Sensitivity controls how much inventory exists.
FIELD NOTES
- Break detectors need ≥500ms silence AND speaker change
- 15min spacing yields ~3x more breaks/hour than 30min