Ozdamar O, Oller D K, Miskiel E, Eilers R
Department of Biomedical Engineering, College of Engineering, University of Miami, Coral Gables, Florida 33124.
Comput Biomed Res. 1988 Feb;21(1):85-100. doi: 10.1016/0010-4809(88)90045-6.
A computer-controlled experimental electrotactile vocoder system is designed to evaluate quantitatively the transmission of speech information and to test various design options for tactual vocoders. The system is composed of a digital speech synthesizer, a digital vocoder, a computer-driven electrotactile display, and an adaptive controller for psychophysical experimentation. Samples of continua representing speech contrast types occurring in natural languages are synthesized by systematically manipulating selected subphonemic features. The synthesized speech stimuli are processed using a programmable vocoder and presented to the skin with an electrotactile display belt worn on the abdomen. Transmission of significant speech parameters is quantitatively evaluated using adaptive psychophysical techniques and labeling tests. The system is used to assess the potential of speech transmission through the skin and to evaluate different vocoder configurations and processing techniques for tactual vocoders to be used as artificial hearing devices by the deaf.
设计了一种计算机控制的实验性电触觉声码器系统，用于定量评估语音信息的传输，并测试触觉声码器的各种设计方案。该系统由数字语音合成器、数字声码器、计算机驱动的电触觉显示器以及用于心理物理学实验的自适应控制器组成。通过系统地操纵选定的亚音位特征，合成代表自然语言中出现的语音对比类型的连续体样本。合成的语音刺激通过可编程声码器进行处理，并通过佩戴在腹部的电触觉显示带呈现给皮肤。使用自适应心理物理学技术和标记测试对重要语音参数的传输进行定量评估。该系统用于评估通过皮肤进行语音传输的潜力，并评估不同的声码器配置和处理技术，以便将触觉声码器用作聋人的人工听力设备。
