Triton Digital�s Webcast Metrics released its monthly digital audio Top 20 Ranker for the month of September.
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The Ranker is a listing of the top-performing digital audio stations and networks measured by the Webcast Metrics audience measurement platform.
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,� �Session Starts,� and �Average Time Spent Listening.� Average Active Sessions (AAS) is defined as �Total Listening Hours (TLH) divided by hours in the reported time period.� TLH is defined as the total number of hours that the station/publisher has streamed during sessions with duration of at least one minute in total within the reported time period. Session Starts (SS) is defined as �the number of different requests for streams (i.e., stream requests) with duration of at least one minute in total within the reported time period.� Average Time Spent Listening (ATSL) is defined as �the average number of hours for each session with duration of at least one minute in total within the reported time period; calculated as total time spent listening divided by active sessions.�
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 of streams without qualifying where they are being consumed, and is MRC accredited. (For more data and an explanation of footnotes, see statement here.)
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