add app file

app.py

@@ -2,7 +2,7 @@ import gradio as gr
 import numpy as np
 
 def greet(name):
-    return (16000, np.random.randn(16000))
+    return [(16000, np.random.randn(16000)), (16000, np.random.randn(16000)), (16000, np.random.randn(16000))]
 
-iface = gr.Interface(fn=greet, inputs="text", outputs="audio")
+iface = gr.Interface(fn=greet, inputs="text", outputs=["audio", "audio", "audio"])
 iface.launch()