Electronic travel aids (ETAs) have been in focus since technology allowed designing
relatively small, light, and mobile devices for assisting the visually impaired. Since visually …

Support systems have been developed to facilitate the active participation of the visually and
hearing impaired, as these impairments limit information acquisition and activities. However …

Blind persons emit sounds to detect objects by echolocation. Both perceived pitch and
perceived loudness of the emitted sound change as they fuse with the reflections from …

Nonverbal communication plays an important role in social interactions. However, most
nonverbal communication relies on visual signals such as eye contact, head nods, facial …

Localization performance and spatial hearing abilities of blind persons are complex issues.
In everyday life we rely on the “fact” that blind people can hear better, without thinking of …

Orientation and mobility (O&M) are important abilities that people with visual impairments
use in their independent performance of daily activities. In orientation, people with total …

The study investigates a specialized voice navigation system designed for visually impaired
users, enhancing voice guidance clarity and accuracy using virtual navigation simulator from …

The field of assistive technology did not start attracting attention until recently when people
have become more and more aware of the importance of prolonging life, leading to greater …

The ability of individuals with visual impairment to recognize an obstacle by hearing is called
“obstacle sense”. This ability is facilitated while they are moving, though the exact reason …

Although many computer games have become diversified in recent years, much effort and
ingenuity are needed to produce games that persons with visual impairments can enjoy …