inflect vs modulate

inflect and modulate both are verbs.

Word	Noun	Adjective	Verb	Adverb
inflect	No	No	Yes	No
modulate	No	No	Yes	No

As verbs, inflect and modulate are synonyms defined as:

Other synonyms of inflect include tone.

inflect (verb)	modulate (verb)
vary the pitch of one's speech	adjust the pitch, tone, or volume of
change the form of a word in accordance as required by the grammatical rules of the language	fix or adjust the time, amount, degree, or rate of
	vary the frequency, amplitude, phase, or other characteristic of (electromagnetic waves)
	vary the pitch of one's speech
	change the key of, in music