Silent Speech technology allows voice communication to take place when no acoustic signal is available. By acquiring sensor data from elements of the human speech production process-from articulators, neuronal pathways, or the brain itself-it produces a digital representation of speech that can be synthesized directly, interpreted as data, or directed to a communications network.
While improving speech aids has been a goal of biomedical engineering for many years, the recent rise in interest in Silent Sound technology also stems from a second class of very different applications: providing privacy for conversations phone calls. It is widely accepted that cell phones can be a nuisance in meetings or quiet areas, and in many public places today its use is prohibited. Quite often the cell phone user, too, is uncomfortable having the content of their conversation become public. At the same time, the ability to make an urgent or important call anywhere could in many cases be a very useful service. This technology, if not invasive and small enough to be incorporated into a phone, would solve these problems allowing users to communicate in silence, without disturbing those around them. Given the number of cell phones in use today, the market for this technology could become very important if such a concept gained public acceptance.
Silent Sound technology is a technology that helps you transmit information without using your vocal cords. Silent Sound technology is developed at the Karlsruhe Institute of Technology, Germany. This technology uses electromyography. It monitors small muscle movements that occur when we talk and convert them into electrical pulses that can then be converted into speech without a pronounced sound. It is very useful for those people who can not speak. By using this technology they can interact easily with other people. The benefit of this technology is that the listener can hear the voice clearly. This technology aims to observe the movements of the lips and transform them into a computer generated sound that can be transmitted through a telephone. Therefore the person at the other end of the phone receives the audio information. The idea of interpreting silent speech electronically or with a computer has existed for a long time, and was popularized in the science fiction film Stanley Kubrick of 1968 "2001-A Space Odyssey".