Apparatus and Methods for the Detection of Emotions in Audio Interactions
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United States of America Patent
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Issued Date -
Feb 14, 2008
app pub date -
Aug 8, 2005
filing date -
Aug 8, 2005
priority date (Note) -
Abandoned
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Abstract
An apparatus and method for detecting an emotional state of a speaker participating in an audio signal. The apparatus and method are based on the distance in voice features between a person being in an emotional state and the same person being in a neutral state. The apparatus and method comprise a training phase in which a training feature vector is determined, and an ongoing stage in which the training feature vector is used to determine emotional states in a working environment. Multiple types of emotions can be detected, and the method and apparatus are speaker-independent, i.e., no prior voice sample or information about the speaker is required.
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