Corrections

Author: microbit-matt-hillsdon

lang/en/typeshed/stdlib/microbit/audio.pyi

@@ -187,7 +187,7 @@ class AudioRecording:
         :return: A copy of the ``AudioRecording``.
         """
 
-    def track(self, start_ms: int = 0, end_ms: int = -1) -> None:
+    def track(self, start_ms: int = 0, end_ms: int = -1) -> AudioTrack:
         """Create an ``AudioTrack`` instance from a portion of the data in this ``AudioRecording`` instance.
 
         Example: ``first_second = my_recording.track(0, 1000)``
@@ -196,15 +196,6 @@ class AudioRecording:
         :param end_ms: (default=-1) The end of the track in milliseconds. If the default value of ``-1`` is provided it will end the track at the end of the AudioRecording.
         :return: An ``AudioTrack`` backed by the sample data between ``start_ms`` and ``end_ms``.
         """
-    def __len__(self) -> int: ...
-    def __setitem__(self, key: int, value: int) -> None: ...
-    def __getitem__(self, key: int) -> int: ...
-    def __add__(self, v: AudioRecording) -> AudioRecording: ...
-    def __iadd__(self, v: AudioRecording) -> AudioRecording: ...
-    def __sub__(self, v: AudioRecording) -> AudioRecording: ...
-    def __isub__(self, v: AudioRecording) -> AudioRecording: ...
-    def __mul__(self, v: float) -> AudioRecording: ...
-    def __imul__(self, v: float) -> AudioRecording: ...
 
 class AudioTrack:
     """ The ``AudioTrack`` object points to the data provided by the input buffer,