Audio-Visual AI System — Combined Speech and Video Understanding

I will build an audio-visual understanding system — combining speech transcription and analysis with visual content understanding from video to create a unified representation of audio-visual content that neither modality alone can produce. Audio-visual content understanding enables use cases beyond what either modality alone can support — video meeting intelligence that correlates what was said with what was shown on screen, video content moderation that catches visual content a speech-only system misses, and video search where the query can match either spoken words or visual content.

The system covers video frame extraction and visual analysis, speech transcription and processing, temporal alignment of audio and visual streams, unified content representation and indexing, and a search or analysis API over the combined audio-visual representation.