a manner of speaking in which the loudness or pitch or tone of the voice is modified; inflection
the act of modifying or adjusting according to due measure and proportion (as with regard to artistic effect)
Microsoft Computer Dictionary
n. 1. The process of changing or regulating the characteristics of a carrier wave vibrating at a certain amplitude (height) and frequency (timing) so that the variations represent meaningful information. 2. In computer communications, the means by which a modem converts digital information sent by a computer to the audio form that it sends over a telephone line.