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Sentiment analytical method based on mobile phone voices and sentiment analytical system based on mobile phone voices

A sentiment analysis and speech technology, applied in speech analysis, speech recognition, instruments, etc., can solve the problems of unreal sentiment analysis results, unnatural speech collection, inconvenient use, etc., to achieve real results, timely analysis, and simple methods. Effect

Inactive Publication Date: 2013-05-08
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

At present, it is rare to analyze the user's emotional state by using mobile phone voice at home and abroad. The voice collection in voice emotion analysis is unnatural, inconvenient to use, and the result of emotion analysis is not true.

Method used

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  • Sentiment analytical method based on mobile phone voices and sentiment analytical system based on mobile phone voices

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Experimental program
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Embodiment

[0034] Such as figure 1 Shown, a kind of sentiment analysis method based on mobile phone speech, this method comprises the following steps:

[0035] Step 1, start the monitoring program of user conversation, enter the voice capture state of mobile phone conversation, monitoring program is a background resident program, when the user talks, it starts the voice acquisition program;

[0036] Step 2, the voice collection program records the voice during the call, and saves it as an MP3 audio file to the machine;

[0037] Step 3, extract the voice emotion feature of MP3 audio file, form a voice emotion feature vector; Voice emotion feature comprises short-term zero-crossing rate, short-term energy, pitch frequency, formant, harmonic-to-noise ratio, MFCC parameter, first-order MFCC Parameters, second-order MFCC parameters, LPC cepstral coefficients, linear prediction coefficients, subband energies, and frequency center mean, standard deviation, maximum, and minimum;

[0038] Step ...

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Abstract

A sentiment analytical method based on mobile phone voices includes mobile phone call status detection, voice signal acquisition, voice sentiment characteristic extraction, voice sentiment classification, content recommendation and local short message box writing. A sentiment analytical system based on the mobile phone voices comprises a mobile phone call status detection module, a voice signal acquisition module, a voice sentiment characteristic extraction module, a voice sentiment classification module, a content recommendation module and a local short message box writing module. The sentiment analytical method based on the mobile phone voices and the sentiment analytical system based on the mobile phone voices have the advantages of being simple in method and system structure, true in sentiment analytical result, and the like.

Description

technical field [0001] The invention relates to a voice signal processing and pattern recognition technology, in particular to an emotion analysis method and system based on mobile phone voice. Background technique [0002] The emotional state reflects the state of mental health. At present, many people are facing psychological pressure, and more or less there will be some psychological and emotional problems, manifested as irritability, anxiety, depression, etc., which need to be guided in time. People who lack academic knowledge are generally difficult to detect, so it is very important to automatically monitor and remind with the help of information technology. Speech contains rich emotional information and is an important way for us to understand emotions. Therefore, speech analysis can realize the identification of human emotional states. The mobile phone is a tool that people often use. The voice during the call reflects the user's natural emotion. Therefore, by autom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L15/02G10L25/63
Inventor 文贵华黄金龙江丽君
Owner SOUTH CHINA UNIV OF TECH
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