The invention discloses a vehicle-mounted equipment power
amplifier control method and
system, and relates to the technical field of
signal processing. Comprising the steps of automatically detecting vehicle types and configuration information, receiving a mode instruction of a user through a
user interface, and setting an audio mode by the user according to personal preference; working state parameters of the vehicle are obtained in real time, and then power
amplifier parameters are dynamically adjusted through a
digital signal processor or a
microcontroller according to the working state parameters of the
vehicle type or a user instruction; acquiring
audio signal data of the music equipment, and preprocessing the
audio signal data; according to the invention, a
DSP technology is adopted to carry out deep preprocessing on an
audio signal; and through a GS-EKF method and an LMS
algorithm, dynamic adjustment of power
amplifier parameters is realized, and the problem that a
fixed gain power amplifier design in traditional vehicle-mounted
multimedia equipment cannot adapt to tone quality demand changes in different vehicle types and use environments is solved.