"Open speech channel failed -108" when trying to use "say" command in OS X Mavericks terminal

Hello Mac G

I've upgraded to Mac OS X Mavericks today. I've setup a "Welcome Speech" app using automator that executes a terminal script, however it no longer works. When trying to debug in the terminal, with something simple as say "Hello, World!", I am getting an error: "Open speech channel failed -108". Has anyone seen this error?

Kind Regards,

Adam