restoring a perception of touch to amputees would be direct or micro stimulation of the tactile nerve afferents. Other applications of sensory substitution systems can be seen in function robotic prostheses for patients with high level quadriplegia. These robotic arms have several mechanisms of slip detection, vibration and texture detection that they relay to the patient through feedback. After more research and development, the information from these arms can be used by patients to perceive that they are holding and manipulating objects while their robotic arm actually accomplishes the task. Auditory systems Auditory sensory substitution systems like the tactile sensory substitution systems aim to use one sensory modality to compensate for the lack of another in order to gain a perception of one that is lacking. With auditory sensory substitution, visual or tactile sensors detect and store information about the external environment. This information is then transformed by interfaces into sound. Most systems are auditory-vision substitutions aimed at using the sense of hearing to convey visual information to the blind. The vOICe Auditory Display "The vOICe" converts live camera views from a video camera into soundscapes, patterns of scores of different tones at different volumes and pitches emitted simultaneously. The technology of the vOICe was invented in the 1990s by Peter Meijer and uses general video to audio mapping by associating height to pitch and brightness with loudness in a left-to-right scan of any video frame. EyeMusic The EyeMusic user wears a miniature camera connected to a small computer (or smartphone) and stereo headphones. The images are converted into "soundscapes". The high locations on the image are projected as high-pitched musical notes on a pentatonic scale, and low vertical locations as low-pitched musical notes. The EyeMusic conveys color information by using different musical instruments for each of the following five colors: white, blue, red, green, yellow. The EyeMusic employs an intermediate resolution of 30×50 pixels. LibreAudioView This project, presented in 2015, proposes a new versatile mobile device and a sonification method specifically designed to the pedestrian locomotion of the visually impaired. It sonifies in real-time spatial information from a video stream acquired at a standard frame rate. The device is composed of a miniature camera integrated into a glasses frame which is connected to a battery-powered minicomputer worn around the neck with a strap. The audio signal is transmitted to the user via running headphones. This system has two operating