visible speech sound spectrograph语图仪
vst visible speech translator可视话音翻译程序
visible speech analyser[声] 可见语言分析器
visible speech translator视觉语言翻译机;可视语言译码器
N(名词) a system of phonetic notation invented by Alexander Melville Bell (1819–1905) that utilized symbols based on the schematic representation of the articulations used for each speech sound 可见语言