Bug or expected output for STT metrics?

[cch41]

We save the metrics outputted by the metrics_collected for STT events without modification, and below is an example of what we have saved for some Deepgram events. Across this and all other calls, for Deepgram the audio_duration is always incremented by 5s and the duration is always 5s. We were hoping these metrics would collect more specifically how long it takes to start / fully receive the STT streamed response, and also get how long the audio being transcribed is. Is the below a bug or expected behavior that the metrics are being recorded this way?

livekit-agents = "0.11.3"