Channel balance and sound field control method and device of digitalized speaker system
A technology of channel equalization and control method, which is applied in the direction of loudspeaker distribution signal, sensor, sensor parts, etc., which can solve the problems of frequency response fluctuation equalization processing of audio band, weak beam control ability, and inability to complete multiple beam steering control, etc., to achieve The effect of reducing the intensity of harmonic distortion and improving the sound quality level
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[0081] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0082] Such as figure 1 As shown, the channel equalization and sound field control method provided by the present invention first converts the sound source signal in the audible sound range into a bit width of N , sampling rate The high-bit PCM coded signal; then use the channel equalization technology to perform inverse filter equalization processing on the digital audio source signal of each channel, eliminate the fluctuation of the frequency response in the audio band of each channel, and eliminate the frequency response difference between channels at the same time; and then use the beamforming technology , weighting the equalized channel signals, so that the array can be directed to the desired spatial direction.
[0083] After completing the channel equalization and beam directivity weighting operations, the L channels, the ...
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