13. The method according to claim 1 , wherein: said obtaining step is carried out using a voice input unit; said preprocessing is carried out using a pre-processing unit for pre-processing voice samples from voice input unit; said deriving and comparing steps are carried out using a main processing unit for processing said pre-processed voice samples and detecting emotional arousal therefrom; and said processing result is outputted to a main indicators output unit for outputting an indication of emotional arousal.
13. The method according to claim 1 , wherein: said obtaining step is carried out using a voice input unit; said preprocessing is carried out using a pre-processing unit for pre-processing voice samples from voice input unit; said deriving and comparing steps are carried out using a main processing unit for processing said pre-processed voice samples and detecting emotional arousal therefrom; and said processing result is outputted to a main indicators output unit for outputting an indication of emotional arousal. 17. The method according to claim 13 , wherein said main indicators output unit of the apparatus is selected from the group consisting of a local output device, a display, a speaker, a file, a storage unit, a monitoring device, and an interface to a remote computer, to the Internet, to another network, to a wired, wireless or cellular telephone, to a computer game, to a toy, to an electronic personal organizer or to any other electronic output equipment.