Switch Deepgram STT to nova-3 multi

Author: bcherry

src/agent.py

@@ -69,7 +69,7 @@ async def my_agent(ctx: JobContext):
     session = AgentSession(
         # Speech-to-text (STT) is your agent's ears, turning the user's speech into text that the LLM can understand
         # See all available models at https://docs.livekit.io/agents/models/stt/
-        stt=inference.STT(model="deepgram/flux-general", language="en"),
+        stt=inference.STT(model="deepgram/nova-3", language="multi"),
         # A Large Language Model (LLM) is your agent's brain, processing user input and generating a response
         # See all available models at https://docs.livekit.io/agents/models/llm/
         llm=inference.LLM(model="openai/gpt-4.1-mini"),
@@ -111,9 +111,12 @@ async def my_agent(ctx: JobContext):
         room=ctx.room,
         room_options=room_io.RoomOptions(
             audio_input=room_io.AudioInputOptions(
-                noise_cancellation=lambda params: noise_cancellation.BVCTelephony()
-                if params.participant.kind == rtc.ParticipantKind.PARTICIPANT_KIND_SIP
-                else noise_cancellation.BVC(),
+                noise_cancellation=lambda params: (
+                    noise_cancellation.BVCTelephony()
+                    if params.participant.kind
+                    == rtc.ParticipantKind.PARTICIPANT_KIND_SIP
+                    else noise_cancellation.BVC()
+                ),
             ),
         ),
     )