Title:
SOUND EVENT DETECTION AND LOCALIZATION METHOD AND APPARATUS, DEVICE, AND READABLE STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2022/121184
Kind Code:
A1
Abstract:
The present application relates to the technical field of artificial intelligence, and in particular to the technical field of voice processing. Provided are a sound event detection and localization method and apparatus, a device, and a readable storage medium. The method comprises: obtaining a plurality of audio signals collected by a microphone array; determining a cross-correlation function matrix between every two audio signals of the plurality of audio signals; inputting each cross-correlation function matrix into a preset sound event classification model to obtain a category matrix of a sound event, the preset sound event classification model being a pre-trained neural network model; performing Fourier transform on each audio signal to obtain a spectrogram of each audio signal, and determining a sound source orientation matrix of the sound event according to spectral data of each audio signal; and inputting the category matrix and the sound source orientation matrix into a preset matching network for matching to obtain a category of each sound event in the audio signals and a sound source orientation matched with the category. In the present application, detection and localization of a sound event are accurately and quickly realized.
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Inventors:
LUO JIAN (CN)
WANG JIANZONG (CN)
CHENG NING (CN)
WANG JIANZONG (CN)
CHENG NING (CN)
Application Number:
PCT/CN2021/084298
Publication Date:
June 16, 2022
Filing Date:
March 31, 2021
Export Citation:
Assignee:
PING AN TECH SHENZHEN CO LTD (CN)
International Classes:
G01S5/18; G10L25/51; G06F17/15; G06F17/16; G06N3/04; G06N3/08; G10L19/02; G10L25/30
Foreign References:
| CN112581978A | 2021-03-30 | |||
| CN110858488A | 2020-03-03 | |||
| CN110232916A | 2019-09-13 | |||
| CN109285557A | 2019-01-29 | |||
| CN110992977A | 2020-04-10 | |||
| US20160071526A1 | 2016-03-10 |
Attorney, Agent or Firm:
SHENZHEN ZHONGYI UNION INTELLECTUAL PROPERTY AGENCY CO.,LTD. (CN)
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