the act of modulating or the condition of being modulated
2. music
the transition from one key to another
3. grammar
a. another word for intonation (sense 1)
b.
the grammatical expression of modality
4. electrical engineering
a.
the act or process of superimposing the amplitude, frequency, phase, etc, of a wave or signal onto another wave (the carrier wave) or signal or onto an electron beam
See also amplitude modulation, frequency modulation, phase modulation, velocity modulation
b.
the variation of the modulated signal
modulation in American English
(ˌmɑdʒəˈleɪʃən)
noun
1.
a modulating or being modulated
; specif.,
a. Music
a shifting from one key to another
b. Radio
a variation in the amplitude, frequency, or phase of a wave in accordance with some signal
2.
a variation in stress or pitch in speaking, as in distinguishing between the merely auxiliary and the lexical uses of a word (Ex.: “There is a post office on Main Street,” as contrasted with “There is the post office”)
Word origin
ME modulacioun < L modulatio
modulation in Electrical Engineering
(mɒdʒəleɪʃən)
noun
(Electrical engineering: Communication, Analog)
Modulation is the act or process of giving a wave or signal the amplitude or frequency of anotherwave or signal.
In telecommunications, modulation is the process of conveying a message signal, for example a digital bit stream oran analog audio signal, inside another signal that can be physically transmitted.
At the receiving end of the communication system, the depth of modulation of the received signal is compared with that of the test signal in each of a numberof frequency bands.
Modulation is the act or process of giving a wave or signal the amplitude or frequency of anotherwave or signal.
modulate, amplitude modulation
Examples of 'modulation' in a sentence
modulation
"'I dare say I would agree with you," Crook said gravely, `if I knew what a modulation was.
West, Charles STAGE FRIGHT
`It describes the kind of dwelling where vividity rather than modulation has been the guiding principle behind decoration.
Adair, Tom (Intro) THREE KINDS OF KISSING - SCOTTISH SHORT STORIES