Single sound source location method based on phase difference regression
A technology of sound source localization and phase difference, applied in positioning, measuring devices, instruments, etc., can solve the problems of lack of acoustic robustness and large amount of calculation
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[0062]The present invention will be further described now in conjunction with accompanying drawing.
[0063] refer to figure 1 , the method of the present invention comprises the following steps:
[0064] Step 101), converting the sound source signal received through the microphone array into a digital sound signal; wherein, the microphone array includes K microphones.
[0065] Step 102), preprocessing the digital sound signal, and then extracting the frequency spectrum of the digital sound signal of each microphone through Fast Fourier Transform (FFT).
[0066] The preprocessing of the digital sound signal includes: first padding the digital sound signal of each frame to N points, N=2 i , i is an integer, and i≥8; then, perform windowing or pre-emphasis processing on the digital audio signal of each frame, and the windowing function adopts Hamming window (hamming) or Hanning window (hanning).
[0067] Fast Fourier transform is performed on the digital sound signal at time ...
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