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Humming retrieval method and system

A note sequence and song technology, applied in the field of humming retrieval method and system, can solve problems such as poor fault tolerance of humming retrieval system, difficulty in obtaining retrieval results, errors, etc.

Active Publication Date: 2016-06-01
IFLYTEK CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present invention provides a humming retrieval method and system to solve the problem that the existing humming retrieval system has poor fault tolerance, and it is difficult to obtain correct retrieval results when the user is humming seriously out of tune or has a wrong rhythm.

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  • Humming retrieval method and system

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Embodiment Construction

[0046] In order to enable those skilled in the art to better understand the solutions of the embodiments of the present invention, the embodiments of the present invention will be further described in detail below in conjunction with the drawings and implementations.

[0047] The traditional method of calculating the melody similarity between note sequences based on edit distance has poor fault tolerance. It can get satisfactory results when the user hums accurately, but it is difficult when the user hums seriously out of tune or has rhythm errors. to get the correct result. The main reason is that in order to avoid non-target templates from obtaining a small distance in the distance calculation, the penalty value for inserting and deleting notes in the traditional distance calculation method is often large, so humming and missing notes with serious pitch and rhythm errors Or abnormal notes such as over-sung notes will generate a larger distance value, so that the abnormal not...

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Abstract

The invention relates to the technical field of music retrieval, and discloses a humming retrieval method and system. The method comprises the following steps: receiving a user humming music fragment; extracting the note sequence of the humming music fragment; on the basis of a fault-tolerant matching rule, successively matching the note sequence of the humming music fragment with the note sequence of each template in a template library to obtain a matching score, wherein the fault-tolerant matching rule means that a proportion of the matching score of an abnormal note is lowered in a matching process; and selecting a template with the highest matching score as a retrieval result. Under a situation that a matching result is not affected, the interference of the abnormal note can be effectively avoided.

Description

technical field [0001] The invention relates to the technical field of music retrieval, in particular to a humming retrieval method and system. Background technique [0002] With the development of information technology and network technology, the scale of music library has increased exponentially, and the rapid retrieval of music songs has become a new research hotspot. Traditional music retrieval methods are mainly based on text keyword retrieval, and related song retrieval is performed according to text information such as song title, singer, genre, and lyrics input by users. And when the user can only hum a certain part of the song, but cannot provide the exact song name, singer and other text information, the traditional music retrieval system obviously cannot meet such retrieval requirements. To this end, researchers have proposed a music humming retrieval technology, that is, according to the song fragments hummed by users, the corresponding songs are selected from ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 吴奎魏思胡国平胡郁刘庆峰
Owner IFLYTEK CO LTD