adding missing audio buffer fix

src/pipecat/processors/audio/audio_buffer_processor.py

@@ -9,6 +9,7 @@ from pipecat.frames.frames import (
     Frame,
     InputAudioRawFrame,
     OutputAudioRawFrame,
+    EndFrame,
 )
 from pipecat.processors.frame_processor import FrameDirection, FrameProcessor
 
@@ -86,6 +87,9 @@ class AudioBufferProcessor(FrameProcessor):
         if self._buffer_size > 0 and len(self._user_audio_buffer) > self._buffer_size:
             await self._call_on_audio_data_handler()
 
+        if isinstance(frame, EndFrame):
+            await self._call_on_audio_data_handler()
+
         await self.push_frame(frame, direction)
 
     async def _call_on_audio_data_handler(self):