Voice search method, voice search device, and voice search program

摘要

PPROBLEM TO BE SOLVED: To search an optional audio section of a video, an audio and music contents by a reference audio section, and to thereby acquire a scene having a similar mental impression in both audio sections as a search result. PSOLUTION: A method includes the steps of: dividing the audio by an audioless section (S1); extracting rhythm characteristics related to a fundamental frequency of the divided audio section or the degree of emphasis of the audio (S2); and calculating a distance between the rhythm characteristics of the reference audio section and the rhythm characteristics of one or more audio sections which are investigation objects (S3). An audio section having similarity equal to or higher than a prescribed value is estimated by the calculated distance (S4). PCOPYRIGHT: (C)2011,JPO&INPIT