fix: add Transcription Turn Start for non external STTs (#559)

api/services/pipecat/audio_config.py

@@ -52,16 +52,6 @@ class AudioConfig:
             )
             self.pipeline_sample_rate = 16000
 
-        # Log configuration for auditing
-        logger.info(
-            f"AudioConfig initialized: "
-            f"transport_in={self.transport_in_sample_rate}Hz, "
-            f"transport_out={self.transport_out_sample_rate}Hz, "
-            f"vad={self.vad_sample_rate}Hz, "
-            f"pipeline={self.pipeline_sample_rate}Hz, "
-            f"buffer={self.buffer_size_seconds}s"
-        )
-
     @property
     def buffer_size_bytes(self) -> int:
         """Calculate buffer size in bytes based on pipeline sample rate."""

api/services/pipecat/run_pipeline.py

@@ -95,6 +95,9 @@ from pipecat.turns.user_start import (
     MinWordsUserTurnStartStrategy,
     ProvisionalVADUserTurnStartStrategy,
 )
+from pipecat.turns.user_start.transcription_user_turn_start_strategy import (
+    TranscriptionUserTurnStartStrategy,
+)
 from pipecat.turns.user_start.vad_user_turn_start_strategy import (
     VADUserTurnStartStrategy,
 )
@@ -160,9 +163,10 @@ def _create_non_realtime_user_turn_start_strategies(
 
     if turn_start_strategy == "provisional_vad":
         return [
+            TranscriptionUserTurnStartStrategy(),
             ProvisionalVADUserTurnStartStrategy(
                 pause_secs=_resolve_provisional_vad_pause_secs(run_configs)
-            )
+            ),
         ]
 
     if uses_external_turns:
@@ -172,7 +176,7 @@ def _create_non_realtime_user_turn_start_strategies(
         # confirms a real turn.
         return [ExternalUserTurnStartStrategy(enable_interruptions=True)]
 
-    return [VADUserTurnStartStrategy()]
+    return [TranscriptionUserTurnStartStrategy(), VADUserTurnStartStrategy()]
 
 
 def _create_non_realtime_user_turn_stop_strategies(

api/services/pipecat/service_factory.py

@@ -227,7 +227,6 @@ def create_stt_service(
         # Other models than flux
         # Use language from user config, defaulting to "multi" for multilingual support
         language = getattr(user_config.stt, "language", None) or "multi"
-        logger.debug(f"Using DeepGram Model - {user_config.stt.model}")
         return DeepgramSTTService(
             api_key=user_config.stt.api_key,
             settings=DeepgramSTTSettings(

api/services/telephony/providers/cloudonix/provider.py

@@ -1111,9 +1111,7 @@ class CloudonixProvider(TelephonyProvider):
         from_number = random.choice(self.from_numbers)
 
         backend_endpoint, _ = await get_backend_endpoints()
-        callback_url = (
-            f"{backend_endpoint}/api/v1/telephony/cloudonix/transfer-result/{transfer_id}"
-        )
+        callback_url = f"{backend_endpoint}/api/v1/telephony/cloudonix/transfer-result/{transfer_id}"
 
         endpoint = f"{self.base_url}/calls/{self.domain_id}/application"
         data: Dict[str, Any] = {
@@ -1126,9 +1124,7 @@ class CloudonixProvider(TelephonyProvider):
 
         data.update(kwargs)
         headers = self._get_auth_headers()
-        masked_destination = (
-            f"***{destination[-4:]}" if len(destination) > 4 else "***"
-        )
+        masked_destination = f"***{destination[-4:]}" if len(destination) > 4 else "***"
         logger.info(
             f"[Cloudonix Transfer] Dialing {masked_destination} into conference "
             f"{conference_name} (transfer_id={transfer_id})"

ui/src/app/workflow/[workflowId]/settings/page.tsx

@@ -647,6 +647,11 @@ function GeneralSection({
                         </Select>
                         <p className="text-xs text-muted-foreground">
                             {selectedTurnStartStrategy?.description}
+                            {turnStartStrategy === "provisional_vad" && (
+                                <span className="ml-2 inline-flex rounded-full bg-muted px-2 py-0.5 text-[10px] font-medium text-muted-foreground">
+                                    Experimental
+                                </span>
+                            )}
                         </p>
                     </div>
                     {turnStartStrategy === "min_words" && (