ADVANCED TACTILE DISPLAY FOR THE DEAF PHASE II

描述：(改编自申请人的摘要)长期 这项工作的目的是开发一种改进的显示方法 聋人的触觉信息。解决的问题包括以下几个 用于显示所需信息、内容 (编码)所显示的信号，并且作为次要问题，相对 两种不同处理方法的抗噪性。具体的 要检查的处理/显示类型为：1)补充的共振峰 向用户提供附加宽带信号的跟踪器 通过特别设计的换能器；2)共振峰跟踪器 使用降低音调的驱动信号而不是多音调驱动信号的处理器 通常的单音编码；3)同样使用降低的音调的声码器 驱动信号而不是更常见的单音编码；以及4)a 24通道共振峰跟踪器使用与现在使用的处理类似的处理 Tactaid VII(一款7通道可穿戴设备)，但分辨率更高。一个 另一项任务是比较两种材料的抗噪性能 共振峰跟踪器；一个使用零轴分析技术，而另一个 使用基于筛选器的分析技术。如果这些研究的结果 展示希望或这些新方法中的任何一种，听觉工程 将承担必要的相关商业开发 技术，以提供更先进的触觉 为聋人提供援助。

DESCRIPTION: (ADAPTED FROM THE APPLICANT'S ABSTRACT) The long-term objective of this work is to develop an improved method of displaying tactile information for the deaf. The issues addressed are number of channels used for displaying the desired information, the content (ENCODING) of the displayed signal and, as a secondary issue, the relative noise immunity of two different processing approaches. The specific processing/display types to be examined are: 1) A supplemented formant tracker in which an additional wideband signal will be supplied to the user through an extra specially designed transducer; 2) A formant tracker processor which uses pitch lowered driving signals instead of the more usual single tone encoding; 3) A vocoder which, again, uses pitch lowered driving signals instead of the more usual single tone encoding; and 4) a 24-channel formant tracker using processing similar to that now used by the Tactaid VII (a 7-channel wearable device) but with better resolution. An additional task will be to compare the noise resistant properties of two formant trackers; one using zero-axis analysis techniques while the other uses filter-based analysis techniques. If the results of these studies show promise or any one of these new approaches, Audiological Engineering would undertake the commercial development of the necessary associated technologies in order to make available the more advanced kind of tactile aid for the deaf.