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Definition of: modulation
(moj′
·lā′shən) noun
1. The act of modulating, or the state of being modulated; specifically, a musical inflection of the voice; change in pitch.
2. Music A change from one key to another by the use of a transitional chord common to both.
3. Telecom. The process of varying the frequency, amplitude, intensity, or phase of a carrier wave so as to conform with a transmitted signal wave.
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