Title:
音楽認識装置
Document Type and Number:
Japanese Patent JP4506004
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To enable music recognition only by processing on a receiving side, without having to perform special processings on a media server side that supplies an object to be recognized. SOLUTION: The received signal of a broadcast wave being a recognition object is sampled, converted into digital PCM(pulse code modulation) (amplitude) data and subjected to normalization processing, a processed part set on the basis of the amplitude peak relative frequency of object data is compared subsequently with data of a piece of music DB (PCM data, peak relative frequency and average level of pieces of music to be referred to are previously made to be DB), and processing that decides whether the object is recognized is carried out, on the basis of detected degree of agreement. The degree of agreement is represented by the difference value or ratio of data between both the processed part and the data. When a plurality of pieces of music that clear a criterion are retrieved as a candidate, the plurality of pieces of music is narrowed down to one piece of music by recomparison with a changed viewpoint and the one piece of music is outputted as a recognition result.
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Inventors:
Sakurazawa Takashi
Application Number:
JP2001056236A
Publication Date:
July 21, 2010
Filing Date:
March 01, 2001
Export Citation:
Assignee:
ソニー株式会社
International Classes:
G10K15/02; G10L15/10; G10K15/04; G10L15/02; G10L15/22; G10L17/00; G10L17/26; G10L25/00; G10L25/54
Domestic Patent References:
| JP2000101439A | ||||
| JP2001052004A | ||||
| JP2000187671A | ||||
| JP10312389A | ||||
| JP11272287A | ||||
| JP2000221988A | ||||
| JP2000032108A | ||||
| JP8286693A |
Attorney, Agent or Firm:
Yoshitsuno Kakuda
Hironobu Isoyama
Hironobu Isoyama