| modulation | the act of modifying or adjusting according to due measure and proportion (as with regard to artistic effect) |
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| modulation | (electronics) the transmission of a signal by using it to vary a carrier wave |
| modulation | a manner of speaking in which the loudness or pitch or tone of the voice is modified |
| modulation | rise and fall of the voice pitch |
| modulation | a musical passage moving from one key to another |