Update Frequency Transform

monai/transforms/signal/array.py

@@ -411,10 +411,11 @@ def __call__(self, signal: np.ndarray) -> Any:
         Args:
             signal: signal to be frequency removed
         """
+        signal = convert_to_tensor(signal, dtype=torch.double)
         b_notch, a_notch = convert_to_tensor(
-            iirnotch(self.frequency, self.quality_factor, self.sampling_freq), dtype=torch.float
+            iirnotch(self.frequency, self.quality_factor, self.sampling_freq), dtype=torch.double
         )
-        y_notched = filtfilt(convert_to_tensor(signal), a_notch, b_notch)
+        y_notched = filtfilt(signal, a_notch, b_notch)
 
         return y_notched
 

requirements-dev.txt

@@ -1,6 +1,7 @@
 # Full requirements for developments
 -r requirements-min.txt
 pytorch-ignite==0.4.11
+torchaudio
 gdown>=4.7.3
 scipy>=1.12.0; python_version >= '3.9'
 itk>=5.2