Design Of Audio Signal Transfer System Based On Bluetooth Technology

Designed and actualized the front signal conditioning circuit which based onsurvey and simulation. Acquainted the theory of R/W module and protocol of CH375U disk minutely, and analyzed control sequence of it. Compilation and test of thecontrol program had been done for later applications. Learned Bluetooth technologyfurther and purchased Bluetooth modules refer to environment and design. Practicedand operated the system by hand till freely.By centering on MSP430F1611 single chip MCU,the system had beenconstructed initially. All the modules had been combined into a union for debugging.A bottleneck about writing speed of U disk has been picked out. Through analysis ofthe system and in order to revise the design less, a double buffer in RAM has beenopened up for solving the problem of the issue.Optimized and put in extra function of the system. Considered the inherentbottleneck of the system deeply and brought forward a method of WAV formattransfer for voice retrieval.It's a pity that the algorithm of audio signal disposal and high-level languageprogram for file transfer had not been achieved completely. However, the idea and themethod of the design were proved to be practical. Next step the related issue would becontinued and solved for fulfilling all the target functions of the system.