AsyncAPI channel · Modulate · Velma 2 Music Detection Streaming API

/api/velma-2-music-detection-streaming

## WebSocket Close Codes - `1000`: Normal closure after the `done` message, or after the connection completes. - `1003`: Invalid or missing query parameters (unknown `audio_format`, invalid `sample_rate` or `num_channels`, a raw format missing `sample_rate`/`num_channels`, `sample_rate`/`num_channels` supplied without `audio_format`, or `audio_format` omitted). An `error` message is sent

Open source AsyncAPI → All Modulate channels Modulate provider profile
Provider: Modulate AsyncAPI: v3.0.0 Spec: Velma 2 Music Detection Streaming API Operations: 5 Messages: 5

Channel address

/api/velma-2-music-detection-streaming

Operations

send
sendAudio
Stream audio data to the server.
send
signalEnd
Signal end of audio stream.
receive
receiveFrameResult
Receive a per-frame detection result.
receive
receiveDone
Receive the final summary when analysis is complete.
receive
receiveError
Receive an error notification.

Messages

audioData
A binary frame containing audio samples.
Content-Type: application/octet-stream
endOfStream
An empty text frame signalling that the client has finished sending audio.
Content-Type: text/plain
frameResult
A single 192-millisecond frame detection result.
Content-Type: application/json
done
Analysis complete - all frame results have been delivered.
Content-Type: application/json
error
An error occurred during connection or analysis.
Content-Type: application/json

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