The Design Of Audio Processor Control Software Based On C++

With the development of electronic technology, A large number of high-techproducts are constantly emerging in our word. The speed of electronic productsupdating more and more quickly, certainly, in the audio system this field also isobvious. By the1950s conference system birth until now, the conference systemgo through road from analogue to digital, from simple to complex. Nowadays,from a small business conference rooms to large-scale venue is inseparable fromthe conference system. In order to simple, convenient operate this electronicworld result in visible interface appearance, then audio control system filed havebeen beginning to research of visible control software.The design is mainly for the development of audio control system PCinterface. Using object-oriented programming, based on MFC technology,application visual programming environment Visual C++6.0, according tofunction divide into modules, from characteristic of industrial control PCinterface we designed a control software applied to audio control system.Designed a system interface to monitor and control, and programmed all controlprogramming. In the past, We wanted to change audio control system everyparameters, for example, the size of sound, tone, high pitch、low pitch and so on,all relate to audio professional parameters need our professional staff manualadjust to change these parameters to achieve the desired effect. Now, theemergence of digital technology, analog era gradual trend digital age, wetranslate analog signal into digital signal to perform our tasks, this project audiocontrol system also entered this filed. The data involved in professional audioparameters to control audio system are integrated in the PC, these data by acertain algorithm transform sent to audio system to control audio system. It issimple and convenient operated matching a visual and beautiful visible PC interface, which have greatly improved not only in personnel but also ineconomy.The design of this topic is a8*2audio processor control system include gain,limiter, parametric equalizer, audio matrix module. The entire system researchexperienced several phases such as to determine the design requirements, theentire software design, planning of each module, designing and coding PCinterface, research of algorithms, data transfer and system control, systemstatus monitoring and late debugging. Hardware platform using the audio-specific DSP ADAU1446and CORTEX-M3microcontroller STM32F103C8,ADAU1446primarily responsible for digitizing the audio signal ADC got, andaudio output by DAC, STM32103C8as a controller. The design of audio controlsystem have been finished by tested.