Definitions for "Standing Waves"
Keywords:  nulls, wave, resonant, bass, reinforce
Excessive Sound Pressure Level of a particular Frequency, that is Dependant upon the Dimensions of a Resonant room. Sound Wave upon Sound Wave building up together to exaggerate a particular Frequency.
A wave which appears to remain still as it is reflected at both ends.
Undesired effects that occur when two or more waves of the same frequency are present at the same time. This may happen, for example, when the transmitter, transmission line or antenna are not properly matched to each other.