vocalizationnoun
UK usually vocalisation /ˌvəʊ.kəl.aɪˈzeɪ.ʃən//ˌvoʊ.kəl.ɪ-/[ C or U ] specialized language a sound that is produced with the voice, or the act of producing sounds with the voice:
Chimpanzees produce vocalizations by alternating the sizes and shapes of their mouths.
[ U ] the act of expressing feelings and ideas in words:
the vocalization of positions and perspectives that differ from the Western position