Answer: equalizing

AnswerCrossword Clue
equalizingCorrect or modify (a signal, etc.) with an equalizer
equalizingCompensate for by means of an equalizer
equalizingBecome equal to a specified or standard level
equalizingEQUALIZE, to make equal, also EQUALISE
equalizingMake the same in quantity, size, or degree throughout a place or group
equalizingMake uniform in application or effect