You can slow down the reading speed for any of the
Text Speaker voices.
To adjust the reading speed, click the Voice icon on the toolbar. On the Voice Options dialog, select the voice you want to use from the drop down list. Next, look for the 'Voice Settings' section and adjust Speed using the Slider. You can also adjust the
Volume and
Pitch level. Once you are done configuring settings, click the
Test Settings button to verify how the text sounds.
Click the
Speak icon on the toolbar, you will able to hear the adjustments of text to speech settings.
Adjusting Text Speaker settings helps to make the voices more understandable and also creates a unique voice.