diff --git a/src/batdetect2/preprocess/spectrogram.py b/src/batdetect2/preprocess/spectrogram.py
index b79ef81..067a965 100644
--- a/src/batdetect2/preprocess/spectrogram.py
+++ b/src/batdetect2/preprocess/spectrogram.py
@@ -370,10 +370,10 @@ class SpectrogramPipeline(torch.nn.Module):
         self.resizer = resizer
 
     def forward(self, wav: torch.Tensor) -> torch.Tensor:
-        spec = self.spec_builder.to(wav)(wav)
-        spec = self.freq_cutter.to(wav)(spec)
-        spec = self.transforms.to(wav)(spec)
-        return self.resizer.to(wav)(spec)
+        spec = self.spec_builder(wav)
+        spec = self.freq_cutter(spec)
+        spec = self.transforms(spec)
+        return self.resizer(spec)
 
     def compute_spectrogram(self, wav: torch.Tensor) -> torch.Tensor:
         return self.spec_builder(wav)