Created a watchdog_min_timeout to allow to change the default value.

src/pipecat/services/deepgram/flux/base.py

@@ -162,6 +162,7 @@ class DeepgramFluxSTTBase(STTService):
         mip_opt_out: bool | None = None,
         tag: list | None = None,
         should_interrupt: bool = True,
+        watchdog_min_timeout: float = 0.5,
         settings: Settings,
         **kwargs,
     ):
@@ -173,6 +174,10 @@ class DeepgramFluxSTTBase(STTService):
             tag: Tags to label requests for identification during usage reporting.
             should_interrupt: Whether to interrupt the bot when Flux detects that
                 the user is speaking.
+            watchdog_min_timeout: Minimum silence duration in seconds before the
+                watchdog sends a silence packet to prevent dangling turns. The
+                actual threshold is ``max(chunk_duration * 2, watchdog_min_timeout)``.
+                Defaults to 0.5.
             settings: Fully resolved settings instance (built by concrete subclass).
             **kwargs: Additional arguments passed to the parent STTService (e.g.
                 ``sample_rate``, ``reconnect_on_error``).
@@ -183,6 +188,7 @@ class DeepgramFluxSTTBase(STTService):
         self._mip_opt_out = mip_opt_out
         self._tag = tag or []
         self._should_interrupt = should_interrupt
+        self._watchdog_min_timeout = watchdog_min_timeout
 
         # Connection readiness: Flux sends a "Connected" message when ready
         self._connection_established_event = asyncio.Event()
@@ -294,9 +300,15 @@ class DeepgramFluxSTTBase(STTService):
             now = time.monotonic()
             # Send silence if we go more than 500 ms or twice the chunk size
             # without sending new audio to Flux.
-            threshold = max(self._last_audio_chunk_duration * 2, 0.5)
-            if self._user_is_speaking and self._last_stt_time and now - self._last_stt_time > threshold:
-                logger.warning(f"No audio received for {threshold * 1000:.0f} ms. Sending silence to Flux to prevent a dangling task")
+            threshold = max(self._last_audio_chunk_duration * 2, self._watchdog_min_timeout)
+            if (
+                self._user_is_speaking
+                and self._last_stt_time
+                and now - self._last_stt_time > threshold
+            ):
+                logger.warning(
+                    f"No audio received for {threshold * 1000:.0f} ms. Sending silence to Flux to prevent a dangling task"
+                )
                 try:
                     await self._send_silence()
                 except Exception as e:

src/pipecat/services/deepgram/flux/sagemaker/stt.py

@@ -89,6 +89,7 @@ class DeepgramFluxSageMakerSTTService(DeepgramFluxSTTBase):
         mip_opt_out: bool | None = None,
         tag: list | None = None,
         should_interrupt: bool = True,
+        watchdog_min_timeout: float = 0.5,
         settings: Settings | None = None,
         **kwargs,
     ):
@@ -105,6 +106,8 @@ class DeepgramFluxSageMakerSTTService(DeepgramFluxSTTBase):
             tag: Tags to label requests for identification during usage reporting.
             should_interrupt: Whether to interrupt the bot when Flux detects that
                 the user is speaking. Defaults to True.
+            watchdog_min_timeout: Minimum silence duration in seconds before the watchdog
+                sends silence to prevent dangling turns. Defaults to 0.5.
             settings: Runtime-updatable settings.
             **kwargs: Additional arguments passed to the parent STTService.
         """
@@ -129,6 +132,7 @@ class DeepgramFluxSageMakerSTTService(DeepgramFluxSTTBase):
             mip_opt_out=mip_opt_out,
             tag=tag,
             should_interrupt=should_interrupt,
+            watchdog_min_timeout=watchdog_min_timeout,
             settings=default_settings,
             sample_rate=sample_rate,
             **kwargs,

src/pipecat/services/deepgram/flux/stt.py

@@ -115,6 +115,7 @@ class DeepgramFluxSTTService(DeepgramFluxSTTBase, WebsocketService):
         tag: list | None = None,
         params: InputParams | None = None,
         should_interrupt: bool = True,
+        watchdog_min_timeout: float = 0.5,
         settings: Settings | None = None,
         **kwargs,
     ):
@@ -140,6 +141,8 @@ class DeepgramFluxSTTService(DeepgramFluxSTTBase, WebsocketService):
                     Use ``settings=DeepgramFluxSTTService.Settings(...)`` instead.
 
             should_interrupt: Determine whether the bot should be interrupted when Flux detects that the user is speaking.
+            watchdog_min_timeout: Minimum silence duration in seconds before the watchdog
+                sends silence to prevent dangling turns. Defaults to 0.5.
             settings: Runtime-updatable settings. When provided alongside deprecated
                 parameters, ``settings`` values take precedence.
             **kwargs: Additional arguments passed to the parent classes.
@@ -224,6 +227,7 @@ class DeepgramFluxSTTService(DeepgramFluxSTTBase, WebsocketService):
             mip_opt_out=mip_opt_out,
             tag=tag,
             should_interrupt=should_interrupt,
+            watchdog_min_timeout=watchdog_min_timeout,
             settings=default_settings,
             sample_rate=sample_rate,
             **kwargs,