[tts]: speech-dispatcher Requires Wait (500ms) Before Usage After Spwn

[TTWNO]

When connecting to speech-dispatcher, it's nice if we can use the auto-spawning functionality. Unfortunately, it's somewhat annoying to use for two reasons:

1. It fails to speak in a new process after it's been awoken. For example, if one were to use autospawn to start speech-dispatcher, then stop Odilia and start it again quickly, then speech-dispatcher will refuse to speak. I can't tell if that's a speech-dispatcher problem or a pulseaudio problem. Who knows.
2. When you auto-spawn, you need to wait around 500ms because: "Due to a bug in Speech Dispatcher, it is currently necessary to include a wait statement after the autospawn for about 0.5 seconds before attempting a connection."

We should submit these bugs upstream and see if we can help fix them.