Update app.py

app.py

@@ -4,9 +4,10 @@ from scipy.io.wavfile import write as write_wav
 import tempfile
 import torch
 from numpy.core.multiarray import scalar
+import numpy
 
-# Add NumPy scalar to safe globals to fix UnpicklingError
-torch.serialization.add_safe_globals([scalar])
+# Add NumPy scalar and dtype to safe globals to fix UnpicklingError
+torch.serialization.add_safe_globals([scalar, numpy.dtype])
 
 # Preload the models at startup
 preload_models()