debugging handling mp3

app.py

@@ -49,12 +49,14 @@ def separate_all_stems(audio_file_path: str, model_name: str):
     if signal.num_channels == 1:
         signal = signal.convert_to(stereo=True)
 
-    waveform = torch.tensor(signal.audio_data).to(torch.float32)
-    sr = signal.sample_rate
+    waveform = torch.from_numpy(signal.audio_data).float()  # [channels, samples]
+    waveform = waveform.unsqueeze(0)  # [1, channels, samples]
+
     with torch.no_grad():
         stems_batch = apply_model(
             model,
-            waveform.unsqueeze(0).to(next(model.parameters()).device),
+            #waveform.unsqueeze(0).to(next(model.parameters()).device),
+            waveform.to(next(model.parameters()).device),
             overlap=0.2,
             shifts=1,
             split=True,