The Audio Recap component converts your study materials into audio summaries, perfect for reviewing content during commutes, workouts, or when visual reading isn’t practical. Supports multiple voices and languages.When topic is set and folders are included, generation can narrow folder-derived materials toward that topic (best-effort). Use excludedMaterialIds to omit specific materials that would otherwise be included from selected folders; IDs listed here are ignored if the same material is also listed in materials (explicit selections win).
How much source material fits per length. When you generate a recap from materials without a topic, the selected materials are split evenly across the recap up to an approximate source-content budget for the chosen length — anything beyond it is truncated. Set a topic to prioritize the most relevant content instead of having it split evenly. The longer the recap (duration), the more source material it can include:
Length
duration (min)
Approx. source material
Short
3
~100 KB
Medium
6
~250 KB
Long
12
~250 KB
Extended
24
~400 KB
Complete
30
~400 KB
Ultra
45
~500 KB
If your materials exceed the budget for the length you picked, either use a longer duration or set a topic so the most relevant content is kept.
Material IDs to exclude when expanding selected folders. Has no effect on materials you list directly in materials—if an ID appears in both materials and excludedMaterialIds, the explicit materials entry wins.
Target duration in minutes for the audio recap (affects content depth). Longer durations also raise the amount of source material included before truncation — see the source-material budget table in the Overview.
Specific topic to focus on within the materials. Together with folders, this can steer which folder-derived materials are used (best-effort relevance filtering).