“喉音的”可以翻译为 “guttural” (形容词形式) 。例如:a guttural sound(喉音声);He has a rather guttural voice.(他的声音相当带喉音 。)
“喉音”单独作名词可译为 “guttural sound” 或更宽泛的 “throat sound” (不过 “guttural sound” 更常用和专业) 。