Audio band extraction method and extraction device

An extraction method and extraction device technology, applied in speech analysis, speech recognition, instruments, etc., to achieve the effect of improving satisfaction and meeting the needs of real-time detection applications

Active Publication Date: 2014-05-28
GUANGZHOU KUGOU COMP TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] Therefore, the present invention provides audio segment extraction method and extraction device, to overcome the problems existing in existing song processing technology

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  • Audio band extraction method and extraction device
  • Audio band extraction method and extraction device
  • Audio band extraction method and extraction device

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Embodiment Construction

[0014] In order to further explain the technical means and effects that the present invention takes to achieve the intended invention purpose, below in conjunction with the accompanying drawings and preferred embodiments, the specific implementation, structure and characteristics of the audio segment extraction method and extraction device proposed according to the present invention And effect, detailed description is as follows.

[0015] The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the preferred embodiments with reference to the drawings. Through the description of specific implementation methods, the technical means and effects of the present invention to achieve the intended purpose can be understood more deeply and specifically, but the attached drawings are only for reference and description, and are not used to explain the present invention limit.

[0016...

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Abstract

The invention relates to an audio band extraction method and extraction device. The extraction method comprises that: an audio signal of the detected song is obtained; framing processing is performedon the audio signal according to a preset time interval so that the audio signal is divided into multiple audio signal bands; characteristics of fundamental tone and start points are extracted from each audio signal band so that characteristic sequences of the fundamental tone and the start points are formed respectively; and each audio signal band is detected according to the characteristic sequences so that position information of the start points and end points of the audio bands needed to be extracted are obtained. The position information of the needed audio bands can be accurately and rapidly extracted so that an application requirement for real-time detection can be met.

Description

technical field [0001] The invention relates to the technical field of music processing, in particular to an audio segment extraction method and an extraction device. Background technique [0002] The structure of a general popular song is based on the verse (Verse) (A), the chorus (Chorus) (B), the transitional sentence (instrumental sentence) (C), the popular sentence (memory point) (D), the bridge section (Instrumental and Ending) (preface, intermission, interlude) (E) and other components. Song audio segment extraction is an important music processing method in the field of music processing. Extraction of audio segments in choruses is currently particularly common. The chorus has three characteristics: strong contrast, repetition of lyrics, development and generalization. Usually, the climax part that people remember deeply about the song generally appears in the chorus of the song. Automatically extract the climax of the chorus, which helps users quickly locate the ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L15/02G10L15/04G10L15/05G10L25/03
Inventor 易立夫
Owner GUANGZHOU KUGOU COMP TECH CO LTD
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