Signal filtering method and apparatus, storage medium and electronic device

A non-transitory computer-readable storage medium, storing a computer program which, when executed by a processor, causes the processor to carry out a signal filtering method, comprising:

• 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, wherein 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.

An electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable by the processor, wherein the computer program, when executed by the processor, causes the processor to carry out a signal filtering method, comprising:

• 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, wherein 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.