Adding flag for file writting recording case

src/lerobot/microphones/microphone.py

@@ -149,6 +149,7 @@ class Microphone:
         self.logs = {}
         self.is_connected = False
         self.is_recording = False
+        self.is_writing = False
 
     def connect(self) -> None:
         if self.is_connected:
@@ -208,7 +209,8 @@ class Microphone:
             logging.warning(status)
         # Slicing makes copy unnecessary
         # Two separate queues are necessary because .get() also pops the data from the queue
-        self.record_queue.put(indata[:, self.channels])
+        if self.is_writing:
+            self.record_queue.put(indata[:, self.channels])
         self.read_queue.put(indata[:, self.channels])
 
     @staticmethod
@@ -312,6 +314,8 @@ class Microphone:
             self.record_thread.daemon = True
             self.record_thread.start()
 
+            self.is_writing = True
+
         self.is_recording = True
         self.stream.start()