Design And Implementation Of The Wireless Voice Classroom System

Along with the vigorous development of our country’s education, steady improvement of international status and constant increasing of foreign exchange, it is necessary to improve the phonetic teaching quality, which also put forward higher requirements to the pronunciation classroom system. Now, some cable pronunciation teaching system’s function is simple, inconvenient, has much inference and high cost, also difficult to install, all these cause great limitations.Therefore, it is imminent to design a set of simple and fully functional pronunciation teaching system.Wireless pronunciation classroom takes the computer technology, network technology and communication technology as base, combines software control and hardware processing together, so as to achieve the action of phonetic teaching and function control through teachers master part and the students processing. The student part can be both the controlled object and also the completed part of the operation, they are controlled by Self programming.In the design project of wireless pronunciation teaching system, we adopt digital network which can transfer wireless information in local area,this not only ensures the convenient and simple to assemble system equipment, but also makes phonetic information accurate, fast, safe and selective to transfer to the students. By this way, the function of wireless pronunciation teaching system get great improvement, and teachers and students’further communication achieves better.In this thesis, we will introduce the designing of the transmission of digital signal in the wireless audio teaching system, using MSP430F135as its core. The system contains teacher part and student part.The two parts have the similar hardware principle. The center control can control the whole system and act on the system function by the software. Going into details the system function of the whole system、 the transmission of the digital signal and program. The system can realize the transmission of the stereo audio signal and the real-time control to the student terminal. And gives a brief introduction to the Intelligent Recording System.