Source: Schema.org v30.1 vocabulary. Official transcript property definition.
What does transcript mean?
If this MediaObject is an AudioObject or VideoObject, the transcript of that object.
Used on types (domainIncludes)
Expected value types (rangeIncludes)
Schema.org domainIncludes and rangeIncludes are descriptive guidance, not strict validation prohibitions. Check the official reference for updates.
Related reference
Browse all Schema.org types and properties · Google feature support status