Two Sound Source Separation and Power Calculation Methods Combined with Three-dimensional Sound Intensity and Vibration Velocity Beamforming
Aiming at the problem of separation of two sound sources with the same frequency and calculation of sound power,a sound source recognition method combining three-dimensional sound intensity vector with conventional beamforming technology of particle vibration velocity is proposed,which is used for sound source localization and sound power separation.The particle vibration velocity and the sound intensity value are solved by the sound intensity characteristics;the particle vibration velocity is introduced into the conventional beamforming to locate the sound source;the positioning result is substituted into the nonlinear equation system of sound intensity and sound power to solve the sound power value of each sound source.Experiments in a semi-anechoic chamber show that the sound source positioning method of particle vibration velocity beamforming is feasible,and the error of solving the sound power value is within 5%.
particle vibration velocitythree-dimensional sound intensitybeamformingsound power
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