platter vs sound recording

platter and sound recording both are nouns.

Word	Noun	Adjective	Verb	Adverb
platter	Yes	No	No	No
sound recording	Yes	No	No	No

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

platter: sound recording consisting of a disk with a continuous groove; used to reproduce music by rotating while a phonograph needle tracks in the groove
sound recording: a recording of acoustic signals

Other hypernyms of platter include audio, audio recording.

platter (noun)	sound recording (noun)
a large shallow dish used for serving food	a recording of acoustic signals
sound recording consisting of a disk with a continuous groove; used to reproduce music by rotating while a phonograph needle tracks in the groove