Modulation - Dictionary Definition and Overview

Modulation :  (noun)
1: a musical passage moving from one key to another [syn: transition]
2: (electronics) the transmission of a signal by using it to vary a carrier wave; changing the carrier's amplitude or frequency or phase
3: rise and fall of the voice pitch [syn: intonation, pitch contour]
4: a manner of speaking in which the loudness or pitch or tone of the voice is modified [syn: inflection]
5: the act of modifying or adjusting according to due measure and proportion (as with regard to artistic effect)

Based on WordNet 2.0

Modulation : \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.

Based on WordNet (r) 2.0 (August 2003)
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