In this chapter, you will begin a new application named SpeakLine. This application will use the NSSpeechSynthesizer class to enable users to type in a line of text and hear it spoken by the OS X speech synthesizer.
Figure 6.1 SpeakLine in action
Let’s take a moment to talk about the two buttons and how they will function in the app. The buttons that start and stop the speech synthesizer will be disabled when appropriate: the Speak button will be disabled when the speech synthesizer is speaking; the Stop button will be disabled when the speech synthesizer is not speaking. A disabled button is “grayed-out”