JUST WATCHEDMeet the man searching for the perfect soundReplayMore Videos ...MUST WATCHMeet the man searching for the perfect soundRob Harris explains the secrets of designing the acoustics for some of the world's most famous concert halls.Source: CNNGreat by Design (6 Videos)Meet the man searching for the perfect soundColor-changing inks respond to the environmentFirefighters see through smoke with new maskThe science of saving priceless artThe whisky distillery that's green in spiritThis goo can make football and soldiers saferSee MoreMeet the man searching for the perfect soundRob Harris explains the secrets of designing the acoustics for some of the world's most famous concert halls.Source: CNN