Speech Object [Excel 2003 VBA Language Reference]
Contains methods and properties that pertain to speech.
Using the Speech object
Use the Speech property of the Application object to return a Speech object.
Once a Speech object is returned, you can use the Speak method of Speech object to play back the contents of a string. In the following example, Microsoft Excel plays back "Hello". This example assumes speech features have been installed on the host system.
Sub UseSpeech() Application.Speech.Speak "Hello" End Sub()
Note There is a speech feature in the setup tree that pertains to Dictation and Command & Control that does not have to be installed.