Update audio processing state: next_index=42

processing_audio_state.json

@@ -42,6 +42,7 @@
     "audio/week05 13 pose reader simple example issue and solution.wav": "failed",
     "audio/week05 12 rotation order.wav": "failed",
     "audio/week05 11 shoulders blade pt2.wav": "failed",
-    "audio/week05 10 shoulders blade pt1.wav": "failed"
+    "audio/week05 10 shoulders blade pt1.wav": "failed",
+    "audio/week05 09 auto shoulders pt3.wav": "processing"
   }
 }