A sound is a uniform pattern of audible vibrations.
The one that was created when…
The cup full of tea
fell on the floor
from his hand
Or
When the fat tea-seller
slapped the little boy
for having dropped
the cup full of tea
Or
When the little boy
fell thereby hitting
his forehead on the floor
and letting out 
a stream of blood
Or
When I stood up
took out my revolver
and shot the fat man
at the forehead
exactly where the
little boy was hurt
Or
When the fat *******
fell on the ground
and died 
but
not at once
since the bullet
missed the ******
by a whisker.
A noise is an inconsistent pattern of audible vibrations.
The one that was created when…
An ambulance 
and a police car
arrived together
at the scene
of crime.
[Café 65 is the name of the tea-stall where I met the first person of this piece of work, one fine evening]