Definitions for: Modulation


[n] the act of modifying or adjusting according to due measure and proportion (as with regard to artistic effect)
[n] (electronics) the transmission of a signal by using it to vary a carrier wave; changing the carrier's amplitude or frequency or phase
[n] a manner of speaking in which the loudness or pitch or tone of the voice is modified
[n] rise and fall of the voice pitch
[n] a musical passage moving from one key to another



Webster (1913) Definition: Mod`u*la"tion, n. [L. modulatio: cf. F.
modulation.]
1. The act of modulating, or the state of being modulated;
as, the modulation of the voice.

2. Sound modulated; melody. [R.] --Thomson.

3. (Mus.) A change of key, whether transient, or until the
music becomes established in the new key; a shifting of
the tonality of a piece, so that the harmonies all center
upon a new keynote or tonic; the art of transition out of
the original key into one nearly related, and so on, it
may be, by successive changes, into a key quite remote.
There are also sudden and unprepared modulations.

Synonyms: inflection, intonation, pitch contour, transition

See Also: alteration, AM, amplitude modulation, delivery, drone, droning, FM, frequency modulation, intonation pattern, manner of speaking, monotone, musical passage, passage, phase modulation, PM, prosody, pulse modulation, revision, singsong, speech, transmission

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