Noun
resonation (plural resonations)
The act or state of resonating
The main point to be drawn from these terms by a singer or speaker is that the end result of resonation is, or should be, to make a better sound. citation There are seven areas that may be listed as possible vocal resonators. Source: Internet
Vocal resonation Vocal resonation is the process by which the basic product of phonation is enhanced in timbre and/or intensity by the air-filled cavities through which it passes on its way to the outside air. Source: Internet