Emotion recognition method and device
First Claim
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1. A method of detecting an emotion conveyed in a voice signal, comprising the sequential steps of:
- low-pass filtering said voice signal,extracting a set comprising at least one prosodic feature of sound properties derived entirely from said filtered signal, wherein said low-pass filtering step comprises filtering the intensity of said voice signal with a cut-off frequency (Fco) in the range of 150 to 400 Hz, andprocessing said set of extracted feature(s) to detect an emotion therefrom.
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Abstract
Emotion recognition is performed by extracting a set comprising at least one feature derived from a signal, and processing the set of extracted feature(s) to detect an emotion therefrom. The voice signal is low pass filtered prior to extracting therefrom at least one feature of the set. The cut-off frequency for the low pass filtering is typically centered around 250 Hz. The features are e.g. statistical quantities extracted from sampling a signal of the intensity or pitch of the voice signal.
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24 Claims
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1. A method of detecting an emotion conveyed in a voice signal, comprising the sequential steps of:
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low-pass filtering said voice signal, extracting a set comprising at least one prosodic feature of sound properties derived entirely from said filtered signal, wherein said low-pass filtering step comprises filtering the intensity of said voice signal with a cut-off frequency (Fco) in the range of 150 to 400 Hz, and processing said set of extracted feature(s) to detect an emotion therefrom. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A device for detecting an emotion conveyed in a voice signal, comprising:
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low-pass filter means for filtering said voice signal, wherein said low-pass filtering means has a cut-off frequency (Fco) in the range of 150 to 400 Hz, extracting means for extracting a set comprising at least one prosodic feature of sound properties derived entirely from said filtered signal, processing means for processing said set of extracted feature(s) to detect an emotion therefrom. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification