daily-python(demos): update audio renderer sample rate

Author: aconchillo

demos/gtk/gtk_app.py

@@ -114,7 +114,7 @@ def on_join_or_leave(self, button):
                 self.__wave = wave.open(f"participant-{participant_id}.wav", "wb")
                 self.__wave.setnchannels(1)
                 self.__wave.setsampwidth(2)  # 16-bit LINEAR PCM
-                self.__wave.setframerate(48000)
+                self.__wave.setframerate(16000)
 
             self.join(meeting_url, participant_id)
             self.__button.set_label("Leave")

demos/qt/qt_app.py

@@ -106,7 +106,7 @@ def on_join_or_leave(self):
                 self.__wave = wave.open(f"participant-{participant_id}.wav", "wb")
                 self.__wave.setnchannels(1)
                 self.__wave.setsampwidth(2)  # 16-bit LINEAR PCM
-                self.__wave.setframerate(48000)
+                self.__wave.setframerate(16000)
 
             self.join(meeting_url, participant_id)
             self.__button.setText("Leave")