Adding audio upload

app.py

@@ -3,5 +3,7 @@ import gradio as gr
 def greet(name):
     return f'Hello {name}!!'
 
-demo = gr.Interface(fn=greet, inputs='text', outputs='text')
+demo = gr.Interface(fn=greet,
+                    inputs=gr.Audio(sources='upload'),
+                    outputs='text')
 demo.launch()