phonophobia vs acousticophobia

phonophobia and acousticophobia both are nouns.

Word	Noun	Adjective	Verb	Adverb
phonophobia	Yes	No	No	No
acousticophobia	Yes	No	No	No

As nouns, phonophobia and acousticophobia are synonyms defined as:

phonophobia and acousticophobia: a morbid fear of sounds including your own voice

phonophobia (noun)	acousticophobia (noun)
a morbid fear of sounds including your own voice	a morbid fear of sounds including your own voice