Previous research has shown evidence of tactile speech acquisition of up to 500 English words presented as tactile phonemic patterns using a 4-by-6 tactor array worn on the forearm. The present paper describes modifications to some of the tactile codes encoding the 39 English phonemes, and 10 additional codes as abbreviated patterns for the 10 most frequent phoneme pairs in spoken English. The re-design aimed to reduce the duration of phonemes and phoneme pairs that occur most frequently, with the goal to increase tactile speech transmission rates. Code identification experiments were conducted with 10 participants over three weeks using a video game. The average identification rate of the 49 modified codes (39 phonemes plus 10 phoneme pairs) was 83.3% with an average learning time of 6.2 hours. The average identification rate of the 49 codes in a retention test with 7 of the 10 participants after more than 90 days of no exposure to the tactile codes was 75.7%. An analysis using ideal transmission rates showed a 58% increase in transmission rate with the modified tactile codes as compared to the original codes, demonstrating that the improved codes can speed up tactile speech communication.

中文翻译：

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在基于音素的触觉显示器中改进触觉代码以提高语音通信速率

先前的研究表明，使用戴在前臂上的 4×6 tactor 阵列，可以通过触觉语音获取多达 500 个英语单词，这些单词以触觉音位模式呈现。本文描述了对 39 个英语音素编码的一些触觉代码的修改，以及 10 个附加代码作为英语口语中 10 个最常见音素对的缩写模式。重新设计旨在减少最频繁出现的音素和音素对的持续时间，目的是提高触觉语音传输率。代码识别实验是在三周内使用视频游戏对 10 名参与者进行的。49个修改代码（39个音素加10个音素对）的平均识别率为83.3%，平均学习时间为6.2小时。在超过 90 天没有接触触觉代码后，10 名参与者中有 7 名参与者对 49 个代码的平均识别率为 75.7%。使用理想传输速率的分析表明，与原始代码相比，改进的触觉代码的传输速率提高了 58%，表明改进的代码可以加快触觉语音通信。