Abstract
In the preceding paper, it was revealed through the interview with the visually handicapped that architectural acoustics and environmental noise are significant factors for their indoor mobility. In the present work, experiment on the detection of a sound source and the indoor mobility has been carried out in four kinds of spaces with different acoustic conditions. As the experimental results the followings are obtained. The sense of direction of the blinds in a long thin space was superior to that in a broad space. The reverberation time and the finish of the floor don't affect on the sense of direction of the blinds in mobility.