Diagnosing Slow-Running Voice Pipeline

I have HA running on a Raspberry Pi 4, and I have set up an OpenAI Conversation Agent to process my commands with a little more ‘intelligence’. I’ve set the voice assistant to prefer local processing for simple commands.

I’ve found the processing time to be very slow, with a simple “turn on the living room and office lights” taking 27 seconds!

I am trying to diagnose where the slowdown is occurring, has anyone else had similar experience with this?

Here is the log of my command:

stage: done
run:
  pipeline: [redacted]
  language: en
  conversation_id: [redacted]
  tts_output:
    token: hiONVZIiyCDOn-5fYsRyZg.flac
    url: /api/tts_proxy/hiONVZIiyCDOn-5fYsRyZg.flac
    mime_type: audio/flac
    stream_response: false
events:
  - type: run-start
    data:
      pipeline: [redacted]
      language: en
      conversation_id: [redacted]
      tts_output:
        token: hiONVZIiyCDOn-5fYsRyZg.flac
        url: /api/tts_proxy/hiONVZIiyCDOn-5fYsRyZg.flac
        mime_type: audio/flac
        stream_response: false
    timestamp: "2025-06-14T19:20:03.887178+00:00"
  - type: stt-start
    data:
      engine: stt.home_assistant_cloud
      metadata:
        language: en-CA
        format: wav
        codec: pcm
        bit_rate: 16
        sample_rate: 16000
        channel: 1
    timestamp: "2025-06-14T19:20:03.888697+00:00"
  - type: stt-vad-start
    data:
      timestamp: 1060
    timestamp: "2025-06-14T19:20:04.957459+00:00"
  - type: stt-vad-end
    data:
      timestamp: 3580
    timestamp: "2025-06-14T19:20:07.490804+00:00"
  - type: stt-end
    data:
      stt_output:
        text: Turn on the living room and office lights.
    timestamp: "2025-06-14T19:20:07.524787+00:00"
  - type: intent-start
    data:
      engine: conversation.chatgpt
      language: en-CA
      intent_input: Turn on the living room and office lights.
      conversation_id: [redacted]
      device_id: [redacted]
      prefer_local_intents: true
    timestamp: "2025-06-14T19:20:07.525502+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        role: assistant
    timestamp: "2025-06-14T19:20:10.947848+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        tool_calls:
          - tool_name: HassTurnOn
            tool_args:
              area: Living Room
              domain:
                - light
            id: call_YxlIMYkwTcTbBON6l9qzSa44
    timestamp: "2025-06-14T19:20:11.488117+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        role: tool_result
        agent_id: conversation.chatgpt
        tool_call_id: call_YxlIMYkwTcTbBON6l9qzSa44
        tool_name: HassTurnOn
        tool_result:
          error: MatchFailedError
          error_text: >-
            <MatchFailedError result=MatchTargetsResult(is_match=False,
            no_match_reason=<MatchFailedReason.ASSISTANT: 8>, states=[],
            no_match_name=None, areas=[], floors=[]),
            constraints=MatchTargetsConstraints(name=None, area_name='Living
            Room', floor_name=None, domains={'light'}, device_classes=None,
            features=None, states=None, assistant='conversation',
            allow_duplicate_names=False, single_target=False),
            preferences=MatchTargetsPreferences(area_id='living_room',
            floor_id=None)>
    timestamp: "2025-06-14T19:20:11.596272+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        role: assistant
    timestamp: "2025-06-14T19:20:21.222180+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        tool_calls:
          - tool_name: HassTurnOn
            tool_args:
              area: Office
              domain:
                - light
            id: call_BWe6stfeh3Vb9jhCqOeloUye
    timestamp: "2025-06-14T19:20:21.730628+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        role: tool_result
        agent_id: conversation.chatgpt
        tool_call_id: call_BWe6stfeh3Vb9jhCqOeloUye
        tool_name: HassTurnOn
        tool_result:
          error: MatchFailedError
          error_text: >-
            <MatchFailedError result=MatchTargetsResult(is_match=False,
            no_match_reason=<MatchFailedReason.AREA: 2>, states=[],
            no_match_name=None, areas=[AreaEntry(name='Office',
            normalized_name='office', created_at=datetime.datetime(1970, 1, 1,
            0, 0, tzinfo=datetime.timezone.utc),
            modified_at=datetime.datetime(1970, 1, 1, 0, 0,
            tzinfo=datetime.timezone.utc), aliases=set(), floor_id=None,
            humidity_entity_id=None, icon=None, id='office', labels=set(),
            picture=None, temperature_entity_id=None, _cache={'json_fragment':
            <orjson.Fragment object at 0x7fa46880f0>})], floors=[]),
            constraints=MatchTargetsConstraints(name=None, area_name='Office',
            floor_name=None, domains={'light'}, device_classes=None,
            features=None, states=None, assistant='conversation',
            allow_duplicate_names=False, single_target=False),
            preferences=MatchTargetsPreferences(area_id='living_room',
            floor_id=None)>
    timestamp: "2025-06-14T19:20:21.865861+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        role: assistant
    timestamp: "2025-06-14T19:20:22.999821+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        tool_calls:
          - tool_name: HassTurnOn
            tool_args:
              area: Living Room
              domain:
                - light
            id: call_HHGG7TIlzt3hTop5i25n37Px
    timestamp: "2025-06-14T19:20:23.201685+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        role: tool_result
        agent_id: conversation.chatgpt
        tool_call_id: call_HHGG7TIlzt3hTop5i25n37Px
        tool_name: HassTurnOn
        tool_result:
          error: MatchFailedError
          error_text: >-
            <MatchFailedError result=MatchTargetsResult(is_match=False,
            no_match_reason=<MatchFailedReason.ASSISTANT: 8>, states=[],
            no_match_name=None, areas=[], floors=[]),
            constraints=MatchTargetsConstraints(name=None, area_name='Living
            Room', floor_name=None, domains={'light'}, device_classes=None,
            features=None, states=None, assistant='conversation',
            allow_duplicate_names=False, single_target=False),
            preferences=MatchTargetsPreferences(area_id='living_room',
            floor_id=None)>
    timestamp: "2025-06-14T19:20:23.220164+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        role: assistant
    timestamp: "2025-06-14T19:20:24.411853+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        tool_calls:
          - tool_name: HassTurnOn
            tool_args:
              area: Living Room
              domain:
                - light
            id: call_yKvfDztzcWZ9r0ibMm0GceSc
    timestamp: "2025-06-14T19:20:24.648683+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        role: tool_result
        agent_id: conversation.chatgpt
        tool_call_id: call_yKvfDztzcWZ9r0ibMm0GceSc
        tool_name: HassTurnOn
        tool_result:
          error: MatchFailedError
          error_text: >-
            <MatchFailedError result=MatchTargetsResult(is_match=False,
            no_match_reason=<MatchFailedReason.ASSISTANT: 8>, states=[],
            no_match_name=None, areas=[], floors=[]),
            constraints=MatchTargetsConstraints(name=None, area_name='Living
            Room', floor_name=None, domains={'light'}, device_classes=None,
            features=None, states=None, assistant='conversation',
            allow_duplicate_names=False, single_target=False),
            preferences=MatchTargetsPreferences(area_id='living_room',
            floor_id=None)>
    timestamp: "2025-06-14T19:20:24.753129+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        role: assistant
    timestamp: "2025-06-14T19:20:25.716352+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        tool_calls:
          - tool_name: HassTurnOn
            tool_args:
              name: Living Room Lights
              domain:
                - light
            id: call_x2WUW2mzBHGvecS8gqj6L3Z5
    timestamp: "2025-06-14T19:20:25.994872+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        role: tool_result
        agent_id: conversation.chatgpt
        tool_call_id: call_x2WUW2mzBHGvecS8gqj6L3Z5
        tool_name: HassTurnOn
        tool_result:
          speech: {}
          response_type: action_done
          data:
            targets: []
            success:
              - name: Living Room Lights
                type: entity
                id: light.living_room_lights
            failed: []
    timestamp: "2025-06-14T19:20:26.029130+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        role: assistant
    timestamp: "2025-06-14T19:20:31.634348+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        tool_calls:
          - tool_name: HassTurnOn
            tool_args:
              name: Desk lamp
              domain:
                - switch
            id: call_0ECpuao0yPQyYahAOLz7zK2q
    timestamp: "2025-06-14T19:20:31.745739+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        role: tool_result
        agent_id: conversation.chatgpt
        tool_call_id: call_0ECpuao0yPQyYahAOLz7zK2q
        tool_name: HassTurnOn
        tool_result:
          speech: {}
          response_type: action_done
          data:
            targets: []
            success:
              - name: Desk lamp
                type: entity
                id: switch.desk_lamp_2
            failed: []
    timestamp: "2025-06-14T19:20:31.807001+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        role: assistant
    timestamp: "2025-06-14T19:20:32.877669+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        content: The
    timestamp: "2025-06-14T19:20:32.884778+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        content: " living"
    timestamp: "2025-06-14T19:20:32.886310+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        content: " room"
    timestamp: "2025-06-14T19:20:32.890062+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        content: " lights"
    timestamp: "2025-06-14T19:20:32.890823+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        content: " are"
    timestamp: "2025-06-14T19:20:32.971853+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        content: " now"
    timestamp: "2025-06-14T19:20:32.975348+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        content: " on"
    timestamp: "2025-06-14T19:20:32.980266+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        content: ","
    timestamp: "2025-06-14T19:20:32.983508+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        content: " and"
    timestamp: "2025-06-14T19:20:32.986465+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        content: " the"
    timestamp: "2025-06-14T19:20:32.988758+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        content: " desk"
    timestamp: "2025-06-14T19:20:32.991392+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        content: " lamp"
    timestamp: "2025-06-14T19:20:32.992148+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        content: " in"
    timestamp: "2025-06-14T19:20:32.998022+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        content: " the"
    timestamp: "2025-06-14T19:20:32.998751+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        content: " office"
    timestamp: "2025-06-14T19:20:33.044991+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        content: " is"
    timestamp: "2025-06-14T19:20:33.047320+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        content: " also"
    timestamp: "2025-06-14T19:20:33.049812+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        content: " turned"
    timestamp: "2025-06-14T19:20:33.051593+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        content: " on"
    timestamp: "2025-06-14T19:20:33.062814+00:00"
  - type: intent-progress
    data:
      chat_log_delta:
        content: .
    timestamp: "2025-06-14T19:20:33.065014+00:00"
  - type: intent-end
    data:
      processed_locally: false
      intent_output:
        response:
          speech:
            plain:
              speech: >-
                The living room lights are now on, and the desk lamp in the
                office is also turned on.
              extra_data: null
          card: {}
          language: en-CA
          response_type: action_done
          data:
            targets: []
            success: []
            failed: []
        conversation_id: [redacted]
        continue_conversation: false
    timestamp: "2025-06-14T19:20:33.128093+00:00"
  - type: tts-start
    data:
      engine: tts.elevenlabs
      language: en
      voice: 1SM7GgM6IMuvQlz2BwM3
      tts_input: >-
        The living room lights are now on, and the desk lamp in the office is
        also turned on.
    timestamp: "2025-06-14T19:20:33.129072+00:00"
  - type: tts-end
    data:
      tts_output:
        media_id: media-source://tts/-stream-/hiONVZIiyCDOn-5fYsRyZg.flac
        token: hiONVZIiyCDOn-5fYsRyZg.flac
        url: /api/tts_proxy/hiONVZIiyCDOn-5fYsRyZg.flac
        mime_type: audio/flac
    timestamp: "2025-06-14T19:20:33.135746+00:00"
  - type: run-end
    data: null
    timestamp: "2025-06-14T19:20:33.136924+00:00"
stt:
  engine: stt.home_assistant_cloud
  metadata:
    language: en-CA
    format: wav
    codec: pcm
    bit_rate: 16
    sample_rate: 16000
    channel: 1
  done: true
  stt_output:
    text: Turn on the living room and office lights.
intent:
  engine: conversation.chatgpt
  language: en-CA
  intent_input: Turn on the living room and office lights.
  conversation_id: [redacted]
  device_id: [redacted]
  prefer_local_intents: true
  done: true
  processed_locally: false
  intent_output:
    response:
      speech:
        plain:
          speech: >-
            The living room lights are now on, and the desk lamp in the office
            is also turned on.
          extra_data: null
      card: {}
      language: en-CA
      response_type: action_done
      data:
        targets: []
        success: []
        failed: []
    conversation_id: [redacted]
    continue_conversation: false
tts:
  engine: tts.elevenlabs
  language: en
  voice: 1SM7GgM6IMuvQlz2BwM3
  tts_input: >-
    The living room lights are now on, and the desk lamp in the office is also
    turned on.
  done: true
  tts_output:
    media_id: media-source://tts/-stream-/hiONVZIiyCDOn-5fYsRyZg.flac
    token: hiONVZIiyCDOn-5fYsRyZg.flac
    url: /api/tts_proxy/hiONVZIiyCDOn-5fYsRyZg.flac
    mime_type: audio/flac```

Update: I discovered my light groups were not in the right areas so HA was not able to match the devices correctly