英国 icSpeech 英语发音软件 Pronunciation Coach 3D

摘要 · 中文整理：本文提出了一种模拟英语发音动作的新型软体机器人舌，旨在为英语发音学习提供支援。此前已提出软体机器人舌的系统设计与执行器布置，并针对各类变形开展了有限元方法（FEM）仿真。本文讨论两个阶段性成果：制作与实验评估。样机采用模具成型与浇注方法制作，尺寸放大为人体舌原始尺寸的五倍；使用硅橡胶 Ecoflex 00-30 浇注到预先用 3D 打印机打印的模具中。此外还开展实验以确认并评估英语发音动作的变形模式，使用直尺测量各类变形的参数，如弯曲角、拍动角与隆起高度。结果表明，所制作的软体机器人舌与 FEM 仿真结果在弯曲与隆起变形上基本一致；但在实验评估中拍动变形存在小幅差异。

原文摘要：A novel soft robotic tongue mimicking the movements of English pronunciation was proposed, aiming at the learning support for English pronunciation. A soft robotic tongue's system design and actuator arrangements have been proposed, and the Finite Element Methods (FEM) simulation for each deformation has been conducted. In this paper, we discussed two milestones: fabrication and experimental evaluation. The fabrication, molding, and casting method was applied to the model, and it was manufactured five times bigger than the original size of a human tongue. A silicone rubber Ecoflex 00-30 was utilized and poured into the mold that was preliminary printed with a 3D printer. Moreover, an experiment was conducted to confirm and evaluate the deformation patterns of English pronunciation movements. A ruler was used to measure the parameters in each deformation, such as bend and flap angle, and bulge height. It presented that bend and bulge deformations between the fabricated soft robotic tongue and simulated FEM results were likely the same; however, the flap deformation slightly differed in the experimental evaluation.

关键词：软体机器人舌、气动网络、制作工艺、英语发音

研究目标：解决英语发音学习中舌部运动不可见、难以示范的问题，通过制作能够模仿英语发音基本舌部运动（弯曲、隆起、翻卷）的软体机器舌，并验证实物形变是否与设计仿真一致。

主要结论：利用 Ecoflex 00-30 弹性体成功制作出 5 倍尺寸的气动软体机器舌；加压实验表明弯曲与隆起形变与 FEM 仿真结果基本一致，翻卷形变存在轻微差异，差异主要来自制作公差；实物与仿真结果共同为模仿英语发音运动的软体机器舌研究提供了依据。

创新点：首次将 Pronunciation Coach 3D 的三维发音模型用于提取英语发音舌部基本运动参数并作为软体机器人设计约束；提出由三个气动网络执行器分别实现弯曲、隆起、翻卷的软体机器舌结构；完成从 FEM 仿真到模具打印、硅胶浇铸、气动实验验证的完整流程。

后续建议：采用弯曲传感器等更精确的测量手段替代直尺，以获得更准确的形变数据并实现闭环反馈；开展各形变的动态特性分析，实现每种形变的参数化控制；增加舌套覆盖整个系统，改善外观以满足实际教学使用需求；扩展至更多英语音素的舌部运动（如元音舌位变化），并与 Pronunciation Coach 3D 的动画进行定量对比；开展面向学习者的教学实验，评估机器舌对英语发音学习效果的实际提升

APA 引文：Krisdityawan, E., Yokota, S., Matsumoto, A., Chugo, D., Muramatsu, S., & Hashimoto, H. (2023). Soft robotic tongue mimicking English pronunciation movements 2nd report: Fabrication and experimental evaluation. In Proceedings of the 20th International Conference on Informatics in Control, Automation and Robotics (ICINCO 2023) (pp. 704–710). SCITEPRESS. https://doi.org/10.5220/0012207800003543

仪器引用：Designing our soft robotic tongue should fulfill the conditions of basic tongue movements in English pronunciation. We analyzed the basic movements using software called "Pronunciation Coach 3D" (icSpeech, n.d.). Basic tongue movements during pronouncing English sounds are distinguished into three movements: bend, bulge, and flap shown in Figure 1.