some fixes applied

app.py

@@ -31,12 +31,9 @@ all_voice_presets = [
 def generate_speech(text, model_name, voice_preset):
     model = models[model_name]
     processor = AutoProcessor.from_pretrained(model_name)  # Load processor for the selected model
-    inputs = processor(text, voice_preset=voice_preset, return_tensors="pt")
-    inputs['attention_mask'] = torch.ones_like(inputs['input_ids'])
-
-    with torch.no_grad():
-        audio_array = model.generate(**inputs)
-    audio_array = audio_array.cpu().numpy().astype('float32').squeeze()
+    inputs = processor(text, voice_preset=voice_preset)
+    audio_array = model.generate(**inputs)
+    audio_array = audio_array.cpu().numpy().squeeze()
     return (model.generation_config.sample_rate, audio_array)
 
 # Gradio app setup