vocaliser vs vocalist

vocaliser and vocalist both are nouns.

Word	Noun	Adjective	Verb	Adverb
vocaliser	Yes	No	No	No
vocalist	Yes	No	No	No

As nouns, vocaliser and vocalist are synonyms defined as:

Other synonyms of vocaliser include singer, vocalizer.

vocaliser (noun)	vocalist (noun)
a person who sings	a person who sings
an organism that can utter vocal sounds