Method and device for real-time performance evaluation and improvement of speaker system considering power response of listening room

PURPOSE: A real time performance assessment and improvement method and a device thereof are provided to efficiently improve a speaker system. CONSTITUTION: A real time performance assessment and improvement device of a speaker system comprises a microphone unit (21), a signal measuring unit (22), a signal analyzing unit (23) and a screen configuring unit (24). The microphone unit is installed at a listening expectation position in a listening space and measures an output signal of the speaker system. The signal measuring unit receives an input signal from the speaker system and receives the output signal from the microphone unit. The signal analyzing unit analyzes and corrects the time delay of the output signal from relation between the output signal and the input signal and performs frequency domain analysis about the output signal in which the time delay is corrected and the input signal. The screen configuring unit configures a screen and indicates the result of the frequency domain analysis. [Reference numerals] (12) Signal playing unit; (14) Signal amplifying unit; (22) Signal measuring unit; (23) Signal analyzing unit; (24) Screen configuring unit; (25) Filter planning and revising unit; (26) Verification unit for the validity of sound source selection