| 主权项 |
1. A power management system coupled to a speaker module, the power management system comprising:
a monitor module, configured to measure a current signal and a voltage signal corresponding to the speaker module to obtain a real-time impedance information corresponding to the speaker module; a reception module, configured to receive an audio analogy signal to be transformed into an audio digital signal, wherein the audio analogy signal is a time-domain signal and the audio digital signal is a frequency-domain signal; a prediction module, coupled to the monitor module and the reception module and predetermined an initial audio information, configured to generate a power prediction information according to the initial audio information, the real-time impedance information and the audio digital signal; a control module, coupled to the reception module and predetermined a human hearing model information, configured to generate a control signal according to the audio digital signal and the human hearing model information; and a power adjustment module, coupled to the prediction module, the reception module and the control module, configured to correspondingly output an adjustment audio signal to the speaker module according to the power prediction information, the audio digital signal and the control signal, so as to perform a broadcast operation of the speaker module. |
