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- W4214536083 abstract "The accuracy and efficiency of sound event recognition are affected by the accuracy of endpoint detection. In a complex environment, it is difficult to detect the endpoint of a sound event due to the influence of background noise. Aiming at the sound events in the elevator operating environment, this paper analyzes and studies multiple characteristic parameters based on short-term energy, short-term average zero-crossing rate, and cepstral distance, and proposes a new characteristic parameter, namely multiple cepstral distance, which is adopted after adding a smoothing mechanism. The new decision mechanism performs endpoint detection. This paper collects environmental sounds of elevators in schools, communities, and shopping malls, and conducts endpoint detection comparative experiments on four sound events: speech, explosion, glass breaking, and alarm sound under different signal-to-noise ratios. The experimental results show that the method can be well adapted to the endpoint detection of four sound events in different environments. Even in the -5dB environment, the average misdetection rate of the four sound events can still be lower than 10%, and the method is robust Better, it has a wide range of application prospects in an elevator safety inspection." @default.
- W4214536083 created "2022-03-02" @default.
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- W4214536083 date "2021-09-24" @default.
- W4214536083 modified "2023-09-27" @default.
- W4214536083 title "Research on Endpoint Detection of Sound Events in Elevator Operation Environment" @default.
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- W4214536083 doi "https://doi.org/10.1145/3488933.3489036" @default.
- W4214536083 hasPublicationYear "2021" @default.
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