Triton Digital has released its monthly online audio Top 20
Ranker for May 2013.
Pandora’s listening hours were 1.25 billion in June – down
from 1.35 billion in May but up from 1.08 billion in June of 2012. The decline in listening hours from last
month is being attributed to the effect of the monthly cap on mobile listening
as well as typical seasonal listening fluctuation.
The Ranker is a listing of the top-performing Internet audio
stations and networks measured by the Webcast Metrics® audience measurement
platform. Webcast Metrics is accredited by the Media Rating Council.
Webcast Metrics uses a proprietary platform to track
audience data and convert it to audience metrics that can be easily understood
by stations, publishers and advertisers.
Audience rankings are done on the basis of “Average Active
Sessions”, with "Session Starts" and “Average Time Spent Listening”
also displayed. Average Active Sessions
(AAS) is defined as “Total Listening Hours (TLH) divided by hours in the
reported time period.”
Rankers are divided into “Domestic” and “All Streams.” The
“Domestic” Ranker quantifies listening done inside the U.S. based on
log-based information provided by the station, this report is not MRC
accredited. The “All Streams” Ranker merely verifies the quantity streams without qualifying where they are
being consumed, and is MRC accredited.
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