Update app.py

app.py

@@ -13,8 +13,10 @@ asr = pipeline(
 def transcribe(audio_filepath):
     """
     audio_filepath: jidka faylka WAV ee la duubay.
-    Soo celi qoraalka ama fariin khalad.
+    Haddii user-ku duubin waayo, soo celi fariin.
     """
+    if not audio_filepath:
+        return "Fadlan marka hore duub cod, ka dibna riix ‘Turjun’."
     try:
         result = asr(audio_filepath)
         return result.get("text", "Qoraal lama helin.")