01 v. t. To form, as sound, to a certain key, or to a certain portion.
imp. & p. p.
Modulated; p. pr. & vb. n.
Modulating
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1.
To form, as sound, to a certain key, or to a certain portion.
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2.
To vary or inflect in a natural, customary, or musical manner; as, the organs of speech modulate the voice in reading or speaking.“Could any person so modulate her voice as to deceive so many?” — Broome.
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3.
To alter the amplitude, frequency, phase, or intensity of (the carrier wave of a radio signal) at intervals, so as to represent information to be conveyed by the signal; -- a technique used to convey information by means of radio waves transmitted by one electronic device and received by another.(Electronics)