modulate

verb

1. change the key of, in music

   verb.creation

   Examples

   Modulate the melody.

   Source: WordNet 3.0

2. vary the pitch of one's speech

   verb.communication

   Synonyms inflect tone

   Source: WordNet 3.0

3. fix or adjust the time, amount, degree, or rate of

   verb.change

   Examples

   Modulate the pitch.

   Synonyms regulate

   Source: WordNet 3.0

4. adjust the pitch, tone, or volume of

   verb.change

   Source: WordNet 3.0

5. vary the frequency, amplitude, phase, or other characteristic of (electromagnetic waves)

   verb.change

   Source: WordNet 3.0

6. To form, as sound, to a certain key, or to a certain portion.

   verb

   Source: webster1913

7. To pass from one key into another.

   verb

   Source: webster1913