voiced sound vs speech sound

voiced sound and speech sound both are nouns.

Word	Noun	Adjective	Verb	Adverb
voiced sound	Yes	No	No	No
speech sound	Yes	No	No	No

As nouns, speech sound is a hypernym of voiced sound; that is, speech sound is a word with a broader meaning than voiced sound:

voiced sound: a speech sound accompanied by sound from the vocal cords
speech sound: (phonetics) an individual sound unit of speech without concern as to whether or not it is a phoneme of some language

Other hypernyms of voiced sound include phone, sound.

voiced sound (noun)	speech sound (noun)
a speech sound accompanied by sound from the vocal cords	(phonetics) an individual sound unit of speech without concern as to whether or not it is a phoneme of some language