Even with the same script, you can generate voices with different vibes by applying Emotions.
Select the script line/paragraph you want to change, then choose an emotion from the Emotion menu at the bottom.
You can also adjust the intensity (%). Click the % next to the emotion and set the level you want.
The higher the intensity, the more strongly that emotion will come through.
When you select an emotion, the voice will be generated/applied with that emotion.
To remove it, go to the Emotion settings section below and switch it back to 'None'