modulate
mod.u.late \'ma:j-*-.la-t\ \-.la-t-*r\ \'ma:j-*-l*-.to-r-e-, -.to.r-\ vb [L modulatus, pp. of modulari to play, sing, fr. modulus smal]l measure, rhythm, dim. of modus measure - more at METE 1: to tune to a key or pitch 2: to adjust to or keep in proper measure or proportion : TEMPER 3: to vary the amplitude, frequency, or phase of (a carrier wave or signal ) in telephony, telegraphy, radio, or television 1: to play or sing with modulation 2: to pass by regular chord or melodic progression from one musical key or tonality into another - mod.u.la.tor n
 Webster's English Dictionary
 Webster's English Dictionary