More from Nielsen's latest Total Audience Report. Despite the onslaught of new technology, radio listening is still very high, according to the Nielsen numbers. Average time spent listening to radio for adults 18 and older has only trended down slightly. In the first quarter of 2013, adults spent 2 hours and 48 minutes listening to radio every day. In the first quarter of 2014 it was 2 hours and 46 minutes and in the first quarter of this year it was 2 hours and 42 minutes. Here's more on TSL