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Method for identifying Batrachia individual information based on spectral features

A spectral and individual technology, applied in speech analysis, instruments, etc., can solve problems such as lack of methods and standards

Inactive Publication Date: 2014-08-13
ANQING NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Strong subjective awareness, lack of appropriate methods and standards

Method used

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  • Method for identifying Batrachia individual information based on spectral features
  • Method for identifying Batrachia individual information based on spectral features
  • Method for identifying Batrachia individual information based on spectral features

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] This embodiment can identify and output the type information of the object to which the measured sound belongs according to the collected sound data whose source is known.

[0032] This embodiment includes the following steps:

[0033] Step 1: Build a feature library;

[0034] A, carry out noise elimination with the call signal feature of the pattern frog that collects;

[0035] B. Divide the noise-reduced frog cry into multiple cry sound segments according to the frog's call time;

[0036] C, carry out MFCC processing to the tweeting sound segment, extract the spectral feature value;

[0037] Steps A to C are repeatedly repeated in this way to establish a feature library of frog calls; the records in the feature library include sample spectral feature values, and each spectral feature value represents its corresponding object type.

[0038] Step 2: The calls to be identified are processed in the same way to obtain spectral feature values; the obtained data are calle...

Embodiment 2

[0054] Based on the first embodiment, this embodiment further provides information such as the individual size and health status of the tested frogs.

[0055] Step 1: Build a feature library;

[0056] A, carry out noise elimination with the call signal feature of the pattern frog that collects;

[0057] B. Divide the noise-reduced frog cry into multiple cry sound segments according to the frog's call time;

[0058] C, carry out MFCC processing to the tweeting sound segment, extract the spectral feature value;

[0059] The model frogs include various frogs in various states, such as healthy larger individuals, unhealthy larger individuals, healthy smaller individuals, unhealthy smaller individuals, etc.; there are several frogs in each state sample.

[0060] The data can be collected originally, or can be entered after demonstration based on the data in Example 1.

[0061] How many according to the category of tested frog species, repeat steps A to step C, set up the featur...

Embodiment 3

[0067] Based on the first embodiment, this embodiment further provides gender information of the tested frogs.

[0068] This embodiment includes the following steps:

[0069] Step 1: Build a feature library;

[0070] A, carry out noise elimination with the call signal feature of the pattern frog that collects;

[0071] B. Divide the noise-reduced frog cry into multiple cry sound segments according to the frog's call time;

[0072] C, carry out MFCC processing to the tweeting sound segment, extract the spectral feature value;

[0073] Repeat steps A to C, save various parameters, and establish a feature library of frog calls; each spectral feature value represents the characteristics of its corresponding object type, and further characterizes its corresponding gender characteristics.

[0074] Frogs of different sexes have different voices, such as black-spotted frogs: males are louder, and females have a deeper voice. The above features can be effectively recognized by the ...

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Abstract

The invention provides a method for identifying Batrachia individual information based on spectral features. According to the method, the Batrachia individual information can be distinguished and output according to Batrachia sound data collected in the outdoor environment, and the accurate reference data can be provided for richness research and individual trace research of Batrachia populations. The method comprises the following steps that firstly, a feature library is built, in the feature library, each tested Batrachia species corresponds to at least one record, each record comprises sample spectral feature values, and each spectral feature value represents the species, the gender, the health state, the courtship state and other features of the object corresponding to the spectral feature value; secondly, the tested data are processed; thirdly, comparison and judgment are performed on the tested data and the feature library.

Description

technical field [0001] The invention relates to a species identification technology, in particular to a frog individual information identification technology. Background technique [0002] In nature, frogs can communicate acoustically through different calls, which convey a wealth of information, including species identification, reproductive status, location, attraction and selection of opposite-sex mates, and individual size. Frog calls have the particularity of their calls. Through the identification of different frogs, it is beneficial for people to identify different kinds of frogs in the wild environment, and it is also one of the main clues to observe the richness of frog populations and trace their traces, which has realistic and practical needs. [0003] Currently, frog song analysis mainly relies on manual recognition. Subjective awareness is strong, and there is still a lack of appropriate methods and standards. Contents of the invention [0004] The technica...

Claims

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Application Information

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IPC IPC(8): G10L17/26G10L17/02G10L17/04
Inventor 黄敏毅段仁燕孔晓泉
Owner ANQING NORMAL UNIV
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