Each of RMS Titanic’s four funnels was fitted with a set of whistles, but not all of them were functional. Titanic’s two functional triple-chamber steam whistles were attached to the two forward funnels. Unlike later ships’ whistles, which give off a loud buzzing noise, Titanic’s whistles were organ pipes operated by steam from the boilers. Each of the three pipes was tuned to a different note, creating a pleasant tone when sounded.