Abstract
This study proposes a light-emitting device to support hearing impaired people in a group conversation. Many hearing impaired people can understand speech by lip reading. However, in a group conversation, it is difficult for hearing impaired people to follow turn taking quickly and correctly even though they use hearing aids. The developed assistive device estimates the sound source direction and displays the results in real time through an LED interface. This device allows hearing impaired people to identify the speaker in a group conversation easily by just looking at the device when they lose the current speaker. In addition, visualizing sound source direction support auditory awareness of hearing impaired people. We conducted group conversation experiments in several conditions with hearing impaired participants and hearing participants. Throughout the experiments, we verified the advantage of the developed device.
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