Update app.py

app.py

@@ -200,7 +200,7 @@ app.layout = dbc.Container([
             ),
             dbc.Select(
                 id="voice1-select", 
-                value="en-US-AriaNeural",
+                value="en-US, AvaNeural",
                 className="my-2"
             ),
             dbc.Select(
@@ -211,7 +211,7 @@ app.layout = dbc.Container([
             ),
             dbc.Select(
                 id="voice2-select", 
-                value="en-US-BrianNeural",
+                value="en-US, BrianNeural",
                 className="my-2"
             ),
             dbc.Button("Generate Script", id="generate-btn", color="primary", className="mt-3"),