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

A non-transitory computer readable medium comprising instructions which, when executed, cause a machine to at least:

• determine audience estimates for streaming media based on media data measured by a media meter;
• calculate a global lift factor based on a determined proportion of an audience that listens to streaming media via headphones and a determined proportion of the audience that listens to streaming media without headphones;
• calculate adjustment factors for a plurality of unique demographic adjustment groups, wherein the adjustment factors are constrained by the global lift factor;
• apply the adjustment factors to the audience estimates for streaming media, wherein the adjustment factors are applied to the audience estimates for audience members that are associated with respective unique demographic adjustment groups;
• and
• report new audience estimates based on the audience estimates with the applied adjustment factors.

A method comprising:

• determining audience estimates for streaming media based on media data measured by a media meter;
• calculating a global lift factor based on a determined proportion of an audience that listens to streaming media via headphones and a determined proportion of the audience that listens to streaming media without headphones;
• calculating adjustment factors for a plurality of unique demographic adjustment groups, wherein the adjustment factors are constrained by the global lift factor;
• and
• applying the adjustment factors to the audience estimates for streaming media, wherein the adjustment factors are applied to the audience estimates of audience members that are associated with respective unique demographic adjustment groups;
• and
• reporting new audience estimates based on the audience estimates with the applied adjustment factors.

An apparatus comprising:

• memory;
• instructions;
• and
• processor circuitry to at least one of execute or instantiate the instructions to:
• determine audience estimates for streaming media based on media data measured by a media meter;
• calculate a global lift factor based on a determined proportion of an audience that listens to streaming media via headphones and a determined proportion of the audience that listens to streaming media without headphones;
• calculate adjustment factors for a plurality of unique demographic adjustment groups, wherein the adjustment factors are constrained by the global lift factor;
• apply the adjustment factors to the audience estimates for streaming media, wherein the adjustment factors are applied to the audience estimates for audience members that are associated with respective unique demographic adjustment groups;
• and
• report new audience estimates based on the audience estimates with the applied adjustment factors.