Platforms know mood, activity, host affinity — walled for direct-sold ads. Only content.genre, audio.feed, series reach exchanges 4 via DAI 3. Feed type (music/podcast/broadcast) defines how deep enrichment goes. 33.
FIELD NOTES
- audio.feed podcast: 3 in ORTB 2.5, 2 in AdCOM 1.0
- Transcript NLP: 30-41% accuracy on conversational podcasts
- Host-read ads: 3-5x CPM vs programmatic, same show