TTSService should only process LLMTextFrames

src/pipecat/services/ai_services.py

@@ -20,12 +20,12 @@ from pipecat.frames.frames import (
     ErrorFrame,
     Frame,
     LLMFullResponseEndFrame,
+    LLMTextFrame,
     StartFrame,
     StartInterruptionFrame,
     STTMuteFrame,
     STTUpdateSettingsFrame,
     TextFrame,
-    TranscriptionFrame,
     TTSAudioRawFrame,
     TTSSpeakFrame,
     TTSStartedFrame,
@@ -291,8 +291,7 @@ class TTSService(AIService):
 
     async def process_frame(self, frame: Frame, direction: FrameDirection):
         await super().process_frame(frame, direction)
-
-        if isinstance(frame, TextFrame) and not isinstance(frame, TranscriptionFrame):
+        if isinstance(frame, LLMTextFrame):
             await self._process_text_frame(frame)
         elif isinstance(frame, StartInterruptionFrame):
             await self._handle_interruption(frame, direction)