The audience rating investigation system, and the aural signal the system and the method where it compresses and correlates and

摘要

(57) Abstract The radio and the system and the method doing the audience rating investigation of broadcast sound from the television (1) are disclosed. Small-sized portable type collection unit (4) the investigation object person (5) samples audio environment, houses the feature where audio program was compressed high-level. The central computer (7), several radios and the television receiver which is possible the investigation object person selects voice response is collected simultaneously from (6). The portable type unit which the central computer (7) is used periodically in investigation the inquiry for (4) is done, the audio feature sample which is taken in is transferred. Next the central computer (7) applying feature pattern recognition technology, it identifies the investigation object person (5) listened which radio or TV station in various times of 1 days. This information is used in order to presume the popularity of the various broadcasting stations next.