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Across type rapid matching method for digital music rhythm

A matching method and leap-forward technology, applied in the fields of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of unsuitable large-scale digital music library retrieval matching, long response time, etc., and achieve performance improvement and improvement effect. Effect

Inactive Publication Date: 2006-02-22
SHANGHAI JIAO TONG UNIV
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  • Description
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AI Technical Summary

Problems solved by technology

The linear alignment approximate melody matching algorithm has the advantages of good rhythm fault tolerance and high matching accuracy, but due to the long response time of this mobile matching method based on note mobile units, it is not suitable for retrieval and matching of large-scale digital music libraries.
Therefore, with the increasing scale of the digital music library, the contradiction between the response speed and retrieval accuracy for melody matching retrieval will become increasingly prominent, which will become a major bottleneck for the practical application of the digital music retrieval system based on humming input.

Method used

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  • Across type rapid matching method for digital music rhythm
  • Across type rapid matching method for digital music rhythm
  • Across type rapid matching method for digital music rhythm

Examples

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Embodiment Construction

[0026] The following examples are provided below with the technical solutions of the present invention in conjunction with the accompanying drawings.

[0027] Based on the method proposed by the present invention, the structure of the music melody leap-type high-speed matching retrieval device adopted in the embodiment of the present invention is as follows: figure 1 As shown, it is specifically composed of a melody feature extraction result storage unit 1, a standard melody feature library and a music material library storage unit 2, a standard melody feature reading and matching retrieval control unit 3, a melody segmentation position detection and movement matching control unit 4, a melody It consists of a segment matching unit 5, a melody matching result storage unit 6, and a melody matching search result display unit 7.

[0028] The melody feature extraction result storage unit 1 is used to appropriately store the melody feature extracted from the input melody signal in a...

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Abstract

This invention relates to digital music rhythm over high speed matching method, which comprises the following steps: standard rhythm characteristics reading and match index controlling step; rhythm section position testing and moving match controlling step; rhythm section matching step: rhythm matching index result displaying step. The symbol is described by high voice difference, time vector series; the high voice difference is the difference between front symbols as semi part as unit; time is to the starting point of symbol to express rhythm characteristics.

Description

technical field [0001] The invention relates to a method in the field of computer application technology, in particular to a leap-forward high-speed matching method of digital music melody. Background technique [0002] The digital music retrieval method based on humming input is referred to as humming retrieval (QBH: Query by Humming), which allows users to retrieve desired songs by humming. As long as the user can recall the melody of the segment and hum it through the microphone, the QBH retrieval system can find the song he needs for the user. In terms of humming retrieval, since users hum with their own memory and hum for non-specific people, how to effectively regularize the melody pattern input by the query, how to improve the robustness of melody matching retrieval, and how to The realization of high-speed retrieval for large-scale music, etc., these problems have not been well resolved, and many key technologies still need to be further studied. [0003] For hummi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 吴亚栋赵芳
Owner SHANGHAI JIAO TONG UNIV
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