DSP audio digital signal processing system and method

Abstract

The invention relates to the field of electro-acoustic technology, and particularly relates to a DSP audio digital signal processing system and a method. The DSP audio digital signal processing system comprises an audio analog signal input interface module, a DSP digital signal processing module, an audio analog signal output interface module, a single chip microcomputer micro control module, a display module and a user operation interface module; the display module, the user operation interface module and the DSP digital signal processing module are in signal connection with the single chip microcomputer micro control module; and the audio analog signal input interface module and the audio analog signal output interface module are in signal connection with the DSP digital signal processing module. When the system and the method of the invention are adopted, the traditional audio power amplifier prestage for pure analog signal processing can be changed into digital prestage with the DSP digital signal processing function, and high speed, high efficiency and flexibility of digital signal processing are counted.

Description

Technical field [0001] The invention involves the field of electro -acoustic technology and especially involves a DSP audio digital signal processing system and method. Background technique [0002] The audio electrical signal is converted to the actual sound signal, which is completed by a speaker. As a transducer device, its performance is the most impact on sound quality.In audio equipment, speakers are the most important devices and the weakest devices. Although there are many types, the structure principles are basically the same. In addition, due to the different materials, different speaker performance differences are huge.The inherent defects of the top cannot be made up for the selection of design or material.The speaker is the terminal device of the entire audio system, and its sound component is the speaker, so the performance of the speaker is largely determined to a large extent.The speakers can be divided into two types: active speakers (also known as active speaker...

AI Technical Summary

Problems solved by technology

The traditional power amplifier uses a pure analog circuit. In addition to amplifying the audio signal, if you want to correct the frequency response performance of the speaker, you can only achieve it by adding hardware circuits. Due to the influence of circuit principles and component parameters, it is difficult to achieve ideal effect, and can only make some simple adjustments, if you want to achieve precise adjustments, it will greatly increase the complexity of the circuit

Images