This is \textit{simple} animation so you can expect speech synthesis not to be that good. And you will have to adjust punctuation and spelling based on the sound. Since the dialog is rendered on-demand, there is a delay when each character starts to speak but you can split dialog into shorter blocks to reduce the delay.
+You can see a step by step example in the website \url{http://www.g-raffa.eu/Cinelerra/HOWTO/animations.html}
+
\section{Textbox Non-std Character / Unicode Insertion}%
\label{sec:textbox_non_std_character_unicode}
\index{unicode insertion}