The global information and measurement company has announced the completion of the $1.3bn deal which will see Arbitron rebranded Nielsen Audio and integrated into Nielsen’s US Watch business segment, which provides information and insights primarily to the media and advertising industries across television, online, mobile and radio.

Last week, Nielsen reached agreement with the Federal Trade Commission to complete its acquisition of Arbitron, which also saw an eight-year provision that ESPN’s cross-platform project with Arbitron and comScore, Project Blueprint, would continue.

“This is a great day for Nielsen and a natural step in our evolution,” said Nielsen chief executive officer David Calhoun. “Arbitron will allow us to analyse and understand an additional two hours of the US consumer’s day while bringing us another opportunity to provide advertisers with metrics on the effectiveness of the mediums that they advertise on.”

Nielsen will update its full year guidance to include the impact of the Arbitron acquisition during its Q3 2013 earnings conference call, which will be held 23 October.