静穏: tranquility / 清音: an unvoiced sound / 声音: tone of voice

音声: voice, audio

recognition, awareness / understanding / (computing) recognition

to recognize something, to be aware of something / to understand something / (computing) to recognize something

speech sound, voice / audio, the sound from a television etc.

成人式: coming of age ceremony

音声記号: (phonetics) phonetic symbol

声門音: glottal

音声学: phonetics

(traditional Chinese phonology) a voiceless and unaspirated onset obstruent, including the glottal stop