SIGNAL PROCESSING METHOD FOR INVESTIGATING AUDIENCE RATING OF MEDIA AND ADDITIONAL INFORMATION INSERTING APPARATUS MEDIA REPRODUCING APPARATUS ADUIENCE RATING DETERMINING APPARATUS FOR THE SAME METHOD

摘要

The present invention relates to a signal processing method for investigating the audience rating of media, and an additional information inserting apparatus, a media reproducing apparatus, and an audience rating investigating apparatus for performing the same. In detail, a signal processing method for investigating the audience rating of media is a method for investigating the audience rating of media in the entire section of an audio signal by inserting additional information through a noise signal in a silent section to overcome technical limitations that may occur in the silent section of the audio signal for the media. The signal processing method includes a step of identifying the entire section of an audio signal as a non-silent section and a silent section; a step of extracting a fingerprint; and a step of inserting additional information.