Systems and methods for gathering audience measurement data

摘要

Systems and methods are provided for gathering audience measurement data relating to exposure of an audience member to audio data. Audio data is received in a user system and is then encoded with audience measurement data. The encoded audio data is reproduced by the user system, picked up by a monitor and decoded to recover the audience measurement data.

主权项

1. A method for adding information to audio, the method comprising:
accessing an audio signal segment in a processing device capable of reproducing the audio as sound, the audio signal segment including first audience measurement data embedded into the audio signal segment; embedding second audience measurement data in the audio signal segment in the processing device, the second audience measurement data being different from the first audience measurement data, and the first audience measurement data and second audience measurement data exist simultaneously existing in the audio signal segment simultaneously; and transmitting the audio signal segment for reproduction.