“…Nowadays using the voice to control an electronic device is a quite common process, and there are several electronic equipments that can be commanded by voice, such as telephones, surgery robots, wheelchairs ( [7], [8]), military devices ( [10]) and so on. A voice recognition system is composed by an input device, typically a microphone, and an intelligent core that performs the recognition operations, which are, for the most part, software elaborations of the signal acquired from the input device.…”