Clear Channel uses Nielsen PPM data to target voters

AuDiO matches information for nearly 250 million Americans who listen to Clear Channel’s US terrestrial radio stations to political databases in order to predict which voter segments are listening to which stations at which times.

According to the press release, this is the first time Nielsen’s Portable People Meter (PPM) data, which gathers the listening habits of around 75,000 respondents across 48 markets, has been combined with specific public voter information.