How to make the overflow a bit more quiet

I've got an Oceanic 75 system I bought used. The tank has an in-tank
overflow, which is really loud. Not in a pleasent cascading water sort
of way, but in a never-ending flushing toilet sort of way. The sump is
pretty quiet, but the process of water falling into the tube is the
problem.

I thought about putting an elbow of the intake so the water would be
more of a 'slide' in, rather than a straight fall into the tank. I
don't know if this would help.

Anyone have good tips on silencing the overflow?

Paul Vincent Craven

http://www.cravenfamily.com