The Nielsen Comapny (us), LLC

Robin J Gentry

Edward Murphy

Rachel Szabo

Francis C Fasinski

Kelly Dixon

Katherine T Williams

Christopher Heider

Jacob Martin

Khaldoon Abu-Hakmeh

Colin King

Emily Neuhoff

Methods, apparatus, systems and articles of manufacture to determine headphone adjustment for portable people meter listening to encoded audio streams are disclosed. An example system disclosed herein includes meter data analyzer circuitry to determine an audience estimate for streaming media based on media data measured by a media meter, the media meter to measure the streaming media based on an identification of the streaming media in ambient audio collected by a microphone of the media meter, and data analyzer circuitry to calculate at least one headphone adjustment factor based on a first determined proportion of an audience that listens to streaming media via headphones and a second determined proportion of the audience that listens to streaming media without headphones.

Methods and apparatus to determine headphone adjustment for portable people meter listening to encoded audio streams

Methods, apparatus, systems and articles of manufacture to determine headphone adjustment for portable people meter listening to encoded audio streams are disclosed. Example apparatus disclosed herein include a meter data analyzer to determine audience estimates for streaming media; a headphone survey analyzer to calculate a global lift factor based on a determined proportion of the audience that listens to streaming media via headphones and a determined proportion of the audience that listens to streaming media without headphones; a headphone survey adjuster to: calculate adjustment factors for a plurality of unique demographic adjustment groups; an audience adjustment calculator to apply the adjustment factors to the audience estimates for streaming media, wherein the adjustment factors are applied to audience members in the audience estimates that are associated with respective unique demographic adjustment groups; and report new audience estimates based on the audience estimates with the applied adjustment factors.

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Ellicott City, MD, United States of America

Robin J Gentry