spoken communication vs speech communication

spoken communication and speech communication both are nouns.

Word	Noun	Adjective	Verb	Adverb
spoken communication	Yes	No	No	No
speech communication	Yes	No	No	No

As nouns, spoken communication and speech communication are synonyms defined as:

spoken communication and speech communication: (language) communication by word of mouth

Other synonyms of spoken communication include language, oral communication, speech, spoken language, voice communication.

spoken communication (noun)	speech communication (noun)
(language) communication by word of mouth	(language) communication by word of mouth