Methods and apparatus to determine engagement levels of audience members

A method performed by a computing system of an audience measurement entity, the method comprising:

• obtaining media identification data from an audience measurement device via a network, the media identification data corresponding to media presented by a television within a media exposure environment, the media identification data determined based on an audio signature of the media, the audio signature generated by the audience measurement device within the media exposure environment;
• obtaining an engagement level from the audience measurement device via the network, the engagement level including an indication of whether an eye gaze direction of an audience member indicates the audience member is looking at the television, the eye gaze direction determined by the audience measurement device based on an image of the media exposure environment, the image captured while the media is presented by the television;
• and
• compiling the media identification data and the engagement level with media identification data and engagement levels associated with other audience members from other media exposure environments to generate an engagement level rating representative of engagement with the media for a population of interest.

A computing system of an audience measurement entity for compiling audience engagement levels for a plurality of media exposure environments, the computing system comprising:

• interface circuitry to:
• obtain a plurality of media identification data from a plurality of audience measurement devices via a network, respective groups of the media identification data corresponding to media respectively presented by a television within a respective media exposure environment of the plurality of media exposure environments, the respective groups of the media identification data respectively determined by corresponding ones of the audience measurement devices based on audio signatures of the respective media, the respective audio signatures generated by corresponding ones of the respective audience measurement devices;
• and
• obtain respective engagement levels from the plurality of audience measurement devices via the network, the respective engagement levels including a corresponding indication of whether an eye gaze direction of a corresponding audience member indicates the audience member is looking at the television, the eye gaze direction determined by the respective audience measurement device based on an image of the respective media exposure environment the image captured while the media is being presented;
• machine readable instructions;
• and
• processor circuitry to execute the machine readable instructions to compile the groups of media identification data and engagement levels for the plurality of media exposure environments to generate an engagement level rating representative of engagement with the media for a population of interest.