Method to synchronize audio and graphics in a multimedia presentation

A method to synchronize audio and graphics in a multimedia presentation, wherein said multimedia presentation has speech and graphic contributions, comprising the steps of:

• providing a list of graphic objects, wherein each graphic object is associated to a graphic file capable of being executed by a computer to display a corresponding graphic contribution on a screen;
• creating a speech file comprising a sequence of phrases, each phrase comprising a speech contribution explaining at least one graphic contribution associated to a respective graphic object;
• creating an arrangement string obtained as a sequence of a first graphic object and a respective first phrase, and then a second graphic object and a respective second phrase, and so on up to completion of all graphic objects and phrases of said list and of said speech file respectively;
• choosing a processing speed of the graphic objects;
• executing said arrangement string by an executing application, wherein said executing application:
• plays a first phrase through a sound card residing in a computer, and contemporaneously
• processes a first graphic object at said processing speed through a graphic interface residing in said computer;
• repeats the above playing and processing steps for a respective second phrase and a second graphic object, and so on for respective phrases and graphic objects up to the completion of the arrangement file,
• starts a next playing step and processing step only if the processing step of a corresponding graphic object has come to an end, postponing instead a next playing step and processing step if the actual processing step of a corresponding graphic object has not come to an end.