I have several long text files and I'm looking forward to convert them into a video with synced text-to-speech voice. Because texts are long, an animation/slide/pagination will be required on video. Also if possible I would like to add background image too.
A good example can be seen here.
Is there any way to automate this task? And also the result videos license should allow me to freely distribute videos. If automation is not an option, how can I create this videos easily?