writer vs transcriber

writer and transcriber both are nouns.

Word	Noun	Adjective	Verb	Adverb
writer	Yes	No	No	No
transcriber	Yes	No	No	No

As nouns, transcriber is a hyponym of writer; that is, transcriber is a word with a more specific, narrower meaning than writer:

writer (noun)	transcriber (noun)
writes (books or stories or articles or the like) professionally (for pay)	someone who makes a written version of spoken material
a person who is able to write and has written something	someone who represents the sounds of speech in phonetic notation
	a musician who adapts a composition for particular voices or instruments or for another style of performance
	a person who translates written messages from one language to another
	someone who rewrites in a different script