We don't have synonyms for modulates yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are modulate, modulator and modulated.
(v) :
(transitive) To change the pitch, intensity or tone of one's voice or of a musical instrument
(v) :
(transitive, electronics) to vary the amplitude, frequency or phase of a carrier wave in proportion to the amplitude etc of a source wave (such as speech or music)
(v) :
(intransitive, music) to move from one key or tonality to another, especially by using a chord progression
(v) :
(transitive) To change the pitch, intensity or tone of one's voice or of a musical instrument
(v) :
(transitive, electronics) to vary the amplitude, frequency or phase of a carrier wave in proportion to the amplitude etc of a source wave (such as speech or music)
(v) :
(intransitive, music) to move from one key or tonality to another, especially by using a chord progression