In order to enhance the sound expression and artistic effect in modern music production and performance, this paper designs and implements a real-time digital sound processing system based on DSP, and completes the design of the core sound algorithm module for delay, reverb and equalization. The delay effector uses a digital delay to access the memory in order to obtain a precise delay. Excellent filters such as FIR filter with good filtering effect and IIR type filter with infinite impulse response are used to construct the overall reverb model. Considering the number of audio segments and their complexity, a 10-band graphic equalizer is used to segment the full band audio. The comprehensive sound processing effect of the system is realized on the matlab platform. The results show that the three designed effects perform well in the sound processing presentation, and the test indexes of the system and its chip meet the design requirements. The sound effectors control the noise level of the left and right channels at -98.6 dB and -100.1 dB, which provides a reliable data reference for the development of audio processing equipment.
