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ctwgL / webrtc-beamforming

整理出来的webrtc波束模块
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beamforming target #5

Open lixinghe1999 opened 3 years ago

lixinghe1999 commented 3 years ago

what is the angle of beam-forming target? Or, how can I configure my mic array to enhance people speak in the front of me? Thank you in advance.

lixinghe1999 commented 3 years ago

From the code line 43 nonlinear_beamformer.h SphericalPointf target_direction = SphericalPointf(static_cast(M_PI) / 2.f, 0.f, 1.f)); We can see the direction seems pi/2, 0, pi. And the center is (0, 0, 0) in self-defined coordinate. Does that mean the 3 radians are the rotation angle with respect to 3 axes (x, y, z) we define before? However, such (pi/2, 0, pi) rotation doesn't exist, So I guess it should be (pi/2, any, pi), which is the negative Z axis. Then if we only provide 2 mics with coordinate, seems that we can't determine the Axis, Does it mean: we will have accuracy lower if we only have 2 channels? By the way, can you provide the coordinate of 3 mics in example: input.wav? Thank you.