Speech emotion recognition equipment and speech emotion recognition method

A speech emotion recognition and emotion technology, applied in speech recognition, speech analysis, instruments, etc., can solve problems such as the influence of spectral information phonemes, the influence of sentence content, and unfavorable emotion recognition systems, so as to achieve the effect of improving accuracy

Active Publication Date: 2010-12-29
FUJITSU LTD
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Problems solved by technology

Schuller B et al. believe that both prosodic features and spectral information can reflect the emotion of speech, but spectral information is more affected by phonemes and

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  • Speech emotion recognition equipment and speech emotion recognition method
  • Speech emotion recognition equipment and speech emotion recognition method
  • Speech emotion recognition equipment and speech emotion recognition method

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Embodiment Construction

[0033] Embodiments of the present invention will be described below with reference to the drawings. It should be noted that representation and description of components and processes that are not related to the present invention and known to those of ordinary skill in the art are omitted from the drawings and descriptions for the purpose of clarity.

[0034] The inventor realized through observation that during a conversation, the emotion (ie, the emotional state) of the same speaker is basically stable within a certain period of time, and the situation of emotional ups and downs rarely occurs. For example, if the emotion of the previous sentence is happy, then the probability of the emotion of this sentence being anger is lower than the probability of being happy or neutral. Similarly, in the three consecutive sentences spoken by a person, the possibility of a combination of large emotional changes, such as anger-joy-anger, is also very small, because most people's emotional ...

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Abstract

The invention relates to speech emotion recognition equipment and a speech emotion recognition method. The speech emotion recognition equipment comprises an analysis device, a probability calculating device and an emotion judging device, wherein the analysis device matches emotional characteristics of input speech with a plurality of emotion models so as to ensure a plurality of possible emotional states; the probability calculating device calculates the final probability of the possible emotional states in the previous emotional states of a speaker according to the knowledge of conditional probability converted among the emotional states in the speaking process of the speaker; and the emotion judging device selects a possible emotional state with the maximum final probability from the possible emotional states as the emotional state of the input speech.

Description

technical field [0001] The invention relates to speech recognition technology. More specifically, the present invention relates to speech emotion recognition devices and methods. Background technique [0002] In recent years, emotion has played an important role in human perception, decision-making and other processes. For a long time, the study of emotional intelligence existed only in the field of psychology and cognitive science. In recent years, with the development of artificial intelligence, the combination of emotional intelligence and computer technology has produced the research topic of emotional computing. This will greatly promote the development of computer technology. Automatic emotion recognition is the first step towards affective computing. Speech, as the most important communication medium for human beings, carries rich emotional information. How to automatically recognize the speaker's emotional state from speech has attracted extensive attention from...

Claims

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Application Information

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IPC IPC(8): G10L15/08G10L15/02G10L19/06
Inventor 王彬郭庆陆应亮李鹏
Owner FUJITSU LTD
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