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/external/webrtc/webrtc/modules/audio_processing/beamformer/
Dcovariance_matrix_generator.cc107 float phase_shift = -2.f * M_PI * distance * freq_in_hertz / sound_speed; in PhaseAlignmentMasks() local
110 mat_els[0][c_ix] = complex<float>(cos(phase_shift), sin(phase_shift)); in PhaseAlignmentMasks()