Update app.py

Changed output type from file to filepath for Gradio to use the correct format for playing the audio directly in the interface

app.py

@@ -23,7 +23,7 @@ def text_to_speech(text):
 iface = gr.Interface(
     fn=text_to_speech,
     inputs=gr.Textbox(label="Text to speak"),
-    outputs=gr.Audio(type="file", label="Generated Speech"),
+    outputs=gr.Audio(type="filepath", label="Generated Speech"),
     title="SpeechBrain TTS Demo",
     description="Enter text and get an AI-generated voice output!"
 )