Sound graphs: a numerical data analysis method for the blind.
Sound graphs: a numerical data analysis method for the blind.
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DOI：
10.1007/bf00996201
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发表时间：
1985-06-01
影响因子：
5.3
通讯作者：
Joy, K I
中科院分区：
文献类型：
--
作者：
Mansur, D L;Blattner, M M;Joy, K I
本文描述了一种用于创建二维折线图的计算机生成声音模式的系统。该系统的目标是为盲人提供一种以有视力的人所使用的整体方式理解折线图的方法。使用连续变化的音高来表示x方向的运动。为了测试使用声音表示图表的可行性，开发了一个原型系统并进行了人因实验。14名受试者被用于比较盲人通常使用的触觉图表方法和这些新的声音图表。研究发现，使用声音可以快速确定诸如对称性、单调性和直线斜率等数学概念。经过额外的训练，可能会有更好的表现。使用这些方法为盲人或视力受损者提供的灵活性、速度、成本效益和更大程度的独立性得到了证明。
A system for the creation of computer-generated sound patterns of two-dimensional line graphs is described. The objectives of the system are to provide the blind with a means of understanding line graphs in the holistic manner used by those with sight. A continuously varying pitch is used to represent motion in the x direction. To test the feasibility of using sound to represent graphs, a prototype system was developed and human factors experimenters were performed. Fourteen subjects were used to compare the tactile-graph methods normally used by the blind to these new sound graphs. It was discovered that mathematical concepts such as symmetry, monotonicity, and the slopes of lines could be determined quickly using sound. Even better performance may be expected with additional training. The flexibility, speed, cost-effectiveness, and greater measure of independence provided the blind or sight-impaired using these methods was demonstrated.