Music Detection - Modulate

Velma-2 music detection classifies audio as music, speech, or neither, returning frame-level probabilities across the clip.

	Batch	Streaming
Use case	Classify a complete audio file	Real-time frame-by-frame classification
Protocol	HTTP POST	WebSocket
Output	Full response after processing	Frames emitted progressively as audio arrives
Latency	Proportional to file length	~192ms per frame

For a side-by-side comparison with the other Velma-2 capabilities, see Which API should I use?.

Authentication

Batch uses the X-API-Key header. Streaming uses an api_key query parameter at connection time. See Authentication and rate limits.

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