Update app.py

app.py

@@ -56,7 +56,7 @@ def encode_audio(audio_file_path):
 
     except Exception as e:
         print(f"Encoding error: {e}")
-        return f"Encoding error: {e}"
+        return None  # Return None if an error occurs
 
     finally:
         cancel_encode = False  # Reset cancel flag after encoding
@@ -84,7 +84,7 @@ def decode_audio(encoded_file_path):
 
     except Exception as e:
         print(f"Decoding error: {e}")
-        return f"Decoding error: {e}"
+        return None  # Return None if an error occurs
 
     finally:
         cancel_decode = False  # Reset cancel flag after decoding
@@ -156,4 +156,4 @@ with gr.Blocks() as demo:
         cancel_stream_button.click(lambda: globals().update(cancel_stream=True),
                                      outputs=None)  # Set cancel_stream flag
 
-demo.queue().launch()
+demo.queue().launch()