Audio matching method and device and electronic equipment
A matching method and audio technology, applied in voice analysis, electrical digital data processing, special data processing applications, etc., can solve problems such as cost increase, high audio fingerprint feature density, affecting system retrieval efficiency and effect experience, and achieve improved matching efficiency effect
Pending Publication Date: 2018-01-12
IFLYTEK CO LTD
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[0003] Existing retrieval technologies based on audio content are mainly carried out for shorter retrieval fragments, and the retrieval time is linearly increased with the length of the retrieval audio, that is, the retrieval time of a retrieval fragment with a time of 20 seconds is generally 5 seconds. At the same time, due to the high density of extracted audio fingerprint features, the cost of matching calculation and hardware storage increases rapidly, and these characteristics directly affect the retrieval efficiency and effect experience of the system
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[0072] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other accompanying drawings based on these drawings and obtain other implementations.
[0073] In order to make the drawing concise, each drawing only schematically shows the parts related to the present invention, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components having the same structure or function is schematically shown, or only one of them is marked. Herein, "a" not only means "only one", but also means "more than one".
[0074] In one emb...
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The invention discloses an audio matching method and device and electronic equipment. The method includes the steps that firstly, to-be-matched audio data is acquired; secondly, the to-be-matched audio data is segmented to obtain multiple to-be-matched audio segments after segmentation; thirdly, audio fingerprint features of each to-be-matched audio segment are extracted, according to the extracted audio fingerprint features, audio matching is conducted on each to-be-matched audio segment by using a pre-built audio matching library, and audio matching results of the to-be-matched audio segments are obtained; fourthly, the audio matching results of the to-be-matched audio segments are merged to obtain a matching result of the to-be-matched audio data. By means of the method, the audio retrieval efficiency can be improved.
Description
technical field [0001] The invention relates to the technical fields of voice signal processing and information retrieval, in particular to an audio matching method and device, and electronic equipment. Background technique [0002] With the outbreak of information technology and big data industry, massive audio and video are stored in digital form, information retrieval technology based on audio content has practical applications in many occasions, such as music original sound retrieval, audio criminal evidence collection, audio Management and control and other fields; excellent audio matching retrieval technology plays a decisive role in improving the effect and efficiency of these fields, so it has also received more and more research and attention from scholars. [0003] Existing retrieval technologies based on audio content are mainly carried out for shorter retrieval fragments, and the retrieval time is linearly increased with the length of the retrieval audio, that is...
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Inventor 李永超方昕刘俊华
Owner IFLYTEK CO LTD