Efficient musical database query method based on humming

A query method and database technology, which is applied in the music database query based on humming, and in the field of music database query, can solve the problems of high-efficiency algorithms, difficulty in fault tolerance, low query efficiency, etc., and achieve the effect of improving speed and accuracy

Inactive Publication Date: 2007-04-04
RENMIN UNIVERSITY OF CHINA
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Problems solved by technology

[0011] The purpose of the present invention is to provide a fault-tolerant music based on one-sided continuous matching based on the understanding of similarity of music to the practical problem that the query efficiency of the fault-tolerant algorithm in the prior art is low, and the high-efficiency algorithm is difficult to tolerate faults. Database query method

Method used

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  • Efficient musical database query method based on humming
  • Efficient musical database query method based on humming
  • Efficient musical database query method based on humming

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Embodiment Construction

[0039] The music database query method provided by the invention is divided into two processes. The first is the process of extracting the features of the music as shown in Figure 1 and establishing the music database to be queried. Secondly, as shown in Fig. 4, the music data query process based on humming is realized through the established music database. Hereinafter, a detailed description will be given for each of these.

[0040] In music information retrieval, the processing of music is carried out through the music feature value. Therefore, it is very important to extract the characteristic value of the music in the music file. When the system queries, the user's humming also extracts the feature value first, and then compares it with the feature value of the music in the database.

[0041] There are many characteristic values ​​of music, including: pitch, duration, intensity, timbre, etc. In the existing technology, usually only the features of pitch and sound leng...

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Abstract

A method for querying music databank in high efficiency way based on song-humming includes picking up melodic outline of querying music inputted by user, dividing said outline according to n element syntax and expanding generated query set, using each element in expanded query set to seek Haxi index to obtain intermediate result, obtaining melodic outline of each music matching to input part by sequencing all intermediate results as per music coding, calculating match-degree of each music in intermediate result, selecting a numbers of music codes with highest match-degree and taking their music names being returned back to user.

Description

technical field [0001] The invention relates to a method for querying a music database, in particular to a method for querying a music database based on humming, and belongs to the technical field of multimedia databases. Background technique [0002] In many fields such as digital library, online music sales, karaoke service, personal music appreciation, music research, and music copyright adjudication, a large number of digitized music data are used every day. There is a problem in the use of these music data, that is, it is difficult to meet the requirements of users to query unformatted music data based on content. That is to say, if the user hears a piece of music that sounds good and wants to query the data of the entire piece of music through the piece of music he remembers, it is still technically difficult to implement it. [0003] Existing music database management systems can only effectively manage formatted data, and support query requirements for formatted dat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 刘怡郝云飞许洁萍胡楠袁斌
Owner RENMIN UNIVERSITY OF CHINA
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