modulation
noun/ˌmɒdjəˈleɪʃn/
/ˌmɑːdʒəˈleɪʃn/
[countable, uncountable]- the act of changing the quality of your voice in order to create a particular effect by making it louder, softer, lower, etc.
- Her vocal modulation was most impressive.
- (music) a change from one musical key (= set of notes) to another
- the harmony and modulations of JS Bach
- (specialist) the act of changing the rate at which a sound wave or radio signal vibrates (= the frequency) so that it is clearer
- Radio transmission employs deliberate modulation of a complex audio signal.
- (specialist) the act of influencing something by changing or controlling it
- This effect indicates long-lasting modulation of neural activity.
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modulation