SIGNAL FILTERING METHOD AND APPARATUS, STORAGE MEDIUM AND ELECTRONIC DEVICE
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United States of America Patent
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Issued Date -
Aug 8, 2024
app pub date -
Mar 24, 2022
filing date -
May 26, 2021
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Disclosed are a signal filtering method and apparatus, a storage medium, and an electronic device. The signal filtering method may include: performing a Fourier transform on time-domain data acquired by M microphones to convert the time-domain data into frequency-domain signals of M channels of a current frame, M is a natural number greater than 1; separating the frequency-domain signals of the M channels to obtain a target signal and an interference signal of the current frame; determining a signal-to-interference ratio between a smooth energy of the target signal and a smooth energy of the interference signal; determining a threshold for the current frame based on the target signal and the interference signal; and filtering the target signal based on the threshold for the current frame and the signal-to-interference ratio between the smooth energies to obtain a pure target signal.
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