Based On DSP Teleconference System's Realization

Enterprise's development is inseparable from the accurate and efficient information resources. Nowadays, the business competition is increasing fiercly, winning the speed is equal to winning the market. Because of the limitation of the time and place for traditional enterprise meeting, it influences enterprise decision efficiency seriously. Telephone conference system solves the shortcomings of traditional meetings.Conventional telephone conference are using internal switch (PBX) to realize the multiparty functions, the implementation of the telephone conference system to attend a meeting and system operation with limited number.Using DSP replaces traditional switchboard can realize the telephone conference system which can choose calling mode. Firstly introduces the concept of, analyzes the existing teleconference system scheme, puts forward a new telephone conference system, and introduces the basic principle, Secondly, the hardware of telephone conference system, including power module, expand the memory module, main control module, the control logic module and system design of the mailbox, Finally, according to the characteristics of the system, put forward two meetings mode of voice:mixing algorithm and comparison algorithm. By using the dynamic adjustment of mixing algorithm for mixed attenuation factor on the voice; overflow Comparison algorithm using "by a comparison" maximum output and large voice. In the last part, I do simulation with two algorithms distinctly, and the results show that the system of two kinds of modes of the algorithm can achieve telephone conference, and the effect is very ideal functions.