What is the meaning of Modulation?

Modification or regulation of something to achieve an appropriate measure or proportion; an instance of this.

1. Variation (especially softening or toning down) of brightness, form, etc.; an instance of this.
2. Variation in the activity or form of a cell in response to changes in the environment; an instance of this.
4. Chiefly preceded by a descriptive word: modification of an electromagnetic wave or other oscillating carrier wave to apply a signal to it; an instance of this; also, the extent to which such a wave is modified; and the modified wave or signal.
5. 1. Variation of the intensity, pitch, and tone of the sound of a musical instrument or voice; inflection; an instance of this.
   3. Changing of the key in a piece of music; also, the effect achieved by this as an element of harmony; an instance of this.
6. The quality of a typeface of having contrasting, thick and thin parts of the strokes; stroke-width variation.

   Variation (especially softening or toning down) of brightness, form, etc.; an instance of this.

   Variation in the activity or form of a cell in response to changes in the environment; an instance of this.

   Chiefly preceded by a descriptive word: modification of an electromagnetic wave or other oscillating carrier wave to apply a signal to it; an instance of this; also, the extent to which such a wave is modified; and the modified wave or signal.

   1. Variation of the intensity, pitch, and tone of the sound of a musical instrument or voice; inflection; an instance of this.
   3. Changing of the key in a piece of music; also, the effect achieved by this as an element of harmony; an instance of this.

   Variation of the intensity, pitch, and tone of the sound of a musical instrument or voice; inflection; an instance of this.

   Changing of the key in a piece of music; also, the effect achieved by this as an element of harmony; an instance of this.

   The quality of a typeface of having contrasting, thick and thin parts of the strokes; stroke-width variation.

   Changing of a thing from one form to another; an instance of this.

   1. Harmonious use of language in poetry or prose.
   2. Modification of the parts of a classical Greek or Roman building to achieve appropriate proportions by measuring in modules (“standard units of measure, usually the diameter or radius of a column at the base of a shaft”).
   3. 1. Any of the musical notes in ecclesiastical modes of music on which a melodic phrase had to begin and end.
      2. Arrangement or composition, or performance, of music in a certain key or mode; also a series of musical notes, chord, or tune analyzed according to a key or mode.
      3. Making music or singing; a melody, a tune; also , a musical note.

   Harmonious use of language in poetry or prose.

   Modification of the parts of a classical Greek or Roman building to achieve appropriate proportions by measuring in modules (“standard units of measure, usually the diameter or radius of a column at the base of a shaft”).

   1. Any of the musical notes in ecclesiastical modes of music on which a melodic phrase had to begin and end.
   2. Arrangement or composition, or performance, of music in a certain key or mode; also a series of musical notes, chord, or tune analyzed according to a key or mode.
   3. Making music or singing; a melody, a tune; also , a musical note.

   Any of the musical notes in ecclesiastical modes of music on which a melodic phrase had to begin and end.

   Arrangement or composition, or performance, of music in a certain key or mode; also a series of musical notes, chord, or tune analyzed according to a key or mode.

   Making music or singing; a melody, a tune; also , a musical note.

   modulation

   inflection (change in pitch or tone of voice)

   modulation

   modulation (change in key)

   Source: wiktionary.org