Participant spoken attribution always set to agent

[Uldiniad]

Bug Description

Spoken input from participants is attributed to the agent in chat. Text input is correctly attributed to the participant

Expected Behavior

Spoken input from participants is attributed to the correct participant.

Reproduction Steps

1. Configure an agent that transcribes user speech and publishes transcriptions 
2. On the frontend, receive transcriptions
3. Observe participant identity is always the agent's identity

Operating System

Windows 11 (WSL 2)

Models Used

AWS

Package Versions

livekit==1.0.25
livekit-agents[aws]==1.5.0
livekit-plugins-noise-cancellation==0.2.5
livekit-plugins-openai==1.5.0
livekit-plugins-silero==1.5.0
livekit-plugins-turn-detector==1.5.0

livekit-client==2.17.3
@livekit/components-core==0.12.13
@livekit/components-react==2.9.20
@livekit/components-styles==1.2.0

Session/Room/Call IDs

LiveKit Cloud

Proposed Solution

Additional Context

No response

Screenshots and Recordings

No response