Update device check

app.py

@@ -46,11 +46,11 @@ audio {outline: none;}
 
 @spaces.GPU
 def synthesize_fn(prompt_audio_path, prompt_text, target_text):
-    if speech_generator.model.device == "cpu":
+    if next(speech_generator.model.parameters()).device.type == "cpu":
         speech_generator.model.to("cuda")
         speech_generator.mimi.to("cuda")
         speech_generator.spk_enc.to("cuda")
-        speech_generator.aligner.to("cuda")
+        speech_generator.aligner.aligner.to("cuda")
 
     if not prompt_audio_path or not target_text:
         return None