fix: add error handler

app.py

@@ -8,6 +8,9 @@ forced_decoder_ids = processor.get_decoder_prompt_ids(language="fa", task="trans
 
 
 def reverse_audio(audio):
+    if audio is None:
+        return "No audio input provided. Please record or upload an audio file."
+
     sample_rate, array = audio
     sr = 16000
     array = librosa.to_mono(array)
@@ -17,7 +20,6 @@ def reverse_audio(audio):
     # generate token ids
     predicted_ids = model.generate(input_features)
     # decode token ids to text
-    transcription = processor.batch_decode(predicted_ids, )
     transcription = processor.batch_decode(predicted_ids, skip_special_tokens=True)
     return transcription