Abstract: Systems, methods, and computer program products relate to special effects for a text source, such as a traditional paper book, e-book, mobile phone text, comic book, or any other form of pre-defined reading material, and for outputting the special effects. The special effects may be played in response to a user reading the text source aloud to enhance their enjoyment of the reading experience and provide interactivity. The special effects can be customized to the particular text source and can be synchronized to initiate the special effect in response to pre-programmed trigger phrases when reading the text source aloud.