NONLINEAR COMPENSATION METHOD FOR LOUDSPEAKER, LOUDSPEAKER DEVICE AND APPARATUS, AND STORAGE MEDIUM

摘要

Disclosed is a nonlinear compensation method for a loudspeaker, the method being applied to a loudspeaker device which comprises a smart power amplifier. The nonlinear compensation method for a loudspeaker comprises: performing displacement and compression filtering processing on an original input signal at the current moment, so as to generate a processed input signal; acquiring a loudspeaker state variable and a loudspeaker system parameter at the current moment, and calculating, according to the loudspeaker state variable and the loudspeaker system parameter, a pre-distortion signal corresponding to the processed input signal; acquiring a system response parameter and a frequency domain response parameter of a smart power amplifier, and calculating, according to the system response parameter and the frequency domain response parameter, a compensation signal corresponding to the pre-distortion signal; and inputting the compensation signal into the smart power amplifier to acquire a playing signal, and inputting the playing signal into a loudspeaker. Further provided are a loudspeaker device and apparatus, and a storage medium. By means of the present invention, nonlinear compensation can be performed on a loudspeaker device which comprises a smart power amplifier, thereby improving the sound playing quality of a loudspeaker.