Definitions for "modulated"
Having either amplitude, intensity, frequency, or phase altered at intervals to represent information to be transmitted; -- of the carrier wave of a radio signal transmitted from one device to another for the purpose of conveying information. Opposite of unmodulated.
altered in volume as well as tone or pitch.
Keywords:  gently, opposed, varied, industry, off
In industry a process which is varied gently as opposed to on/off
Keywords:  suitable, adjusted, changed
changed or adjusted to be suitable