Update app.py

app.py

@@ -24,7 +24,8 @@ def generate_tts(text, temperature, repetition_penalty, speaker_selection, refer
             model_path="OuteAI/OuteTTS-0.3-1B",
             tokenizer_path="OuteAI/OuteTTS-0.3-1B",
             dtype=torch.bfloat16,
-            device="cpu"
+            device="cuda" if torch.cuda.is_available() else "cpu"
+
         )
         interface = outetts.InterfaceHF(model_version="0.3", cfg=model_config)