Voice Settings button in .

Use Voice Settings to change the voice, volume, speed, and pitch. Not all voice engines support all settings or allow them to be finely adjusted.

Voice Settings
Setting Description
Voice Sets the voice engine to use. Windows may include just one voice, but others can be installed, such as .
Volume Sets the loudness of the voice. Normally full volume is used.
Speed Sets how slow or fast the voice speaks. Choose a setting you find most intelligible.
Pitch Sets the tone of the voice. Some voices can be changed up or down by a full octave.
Rate Sets the default sampling rate used when saving the speech to a file. This is used only if the selected file attributes do not specify a rate.