Summary: Digital radio listening is now one third of all listening, with over 25 million people now tuning in to a digital signal, up 2.1 million year on year. 42 of the population now has a DAB digital radio set, up from 40.3 in Q4 2011. This equates to 22 million adults now having a DAB digital radio, up 6 year on year. - radiotoday.co.uk