Use TurnAnalyzerUserTurnStopStrategy as default stop strategy

Change the default user turn stop strategy from
TranscriptionUserTurnStopStrategy to TurnAnalyzerUserTurnStopStrategy
with LocalSmartTurnAnalyzerV3. Also reduce AUDIO_INPUT_TIMEOUT_SECS
from 1.0 to 0.5 and remove its debug log.

src/pipecat/transports/base_input.py

@@ -48,7 +48,7 @@ from pipecat.metrics.metrics import MetricsData
 from pipecat.processors.frame_processor import FrameDirection, FrameProcessor
 from pipecat.transports.base_transport import TransportParams
 
-AUDIO_INPUT_TIMEOUT_SECS = 1.0
+AUDIO_INPUT_TIMEOUT_SECS = 0.5
 
 
 class BaseInputTransport(FrameProcessor):
@@ -449,8 +449,6 @@ class BaseInputTransport(FrameProcessor):
                 if not audio_received:
                     continue
 
-                logger.debug(f"{self}: audio not received for more than {AUDIO_INPUT_TIMEOUT_SECS}")
-
                 ###################################################################
                 # DEPRECATED.
                 if self._user_speaking:

src/pipecat/turns/user_turn_strategies.py

@@ -9,6 +9,7 @@
 from dataclasses import dataclass
 from typing import List, Optional
 
+from pipecat.audio.turn.smart_turn.local_smart_turn_v3 import LocalSmartTurnAnalyzerV3
 from pipecat.turns.user_start import (
     BaseUserTurnStartStrategy,
     ExternalUserTurnStartStrategy,
@@ -18,7 +19,7 @@ from pipecat.turns.user_start import (
 from pipecat.turns.user_stop import (
     BaseUserTurnStopStrategy,
     ExternalUserTurnStopStrategy,
-    SpeechTimeoutUserTurnStopStrategy,
+    TurnAnalyzerUserTurnStopStrategy,
 )
 
 
@@ -29,7 +30,7 @@ class UserTurnStrategies:
     If no strategies are specified, the following defaults are used:
 
         start: [VADUserTurnStartStrategy, TranscriptionUserTurnStartStrategy]
-         stop: [SpeechTimeoutUserTurnStopStrategy]
+         stop: [TurnAnalyzerUserTurnStopStrategy(LocalSmartTurnAnalyzerV3)]
 
     Attributes:
         start: A list of user turn start strategies used to detect when
@@ -46,7 +47,7 @@ class UserTurnStrategies:
         if not self.start:
             self.start = [VADUserTurnStartStrategy(), TranscriptionUserTurnStartStrategy()]
         if not self.stop:
-            self.stop = [SpeechTimeoutUserTurnStopStrategy()]
+            self.stop = [TurnAnalyzerUserTurnStopStrategy(turn_analyzer=LocalSmartTurnAnalyzerV3())]
 
 
 @dataclass