Sound radiating structure includes a plurality of pipes each defining an inner
cavity along the length of the pipe. Each of the pipes has an end opening at one
end and is closed at the other end with a closure. Each of the pipes also has a
side opening in its one side portion. When a sound is input to the sound radiating
structure, it re-radiates various sound waves through a number of the end and side
openings together with reflected sound waves.
