System and method for realizing large-capacity conference service based on single server

The invention relates to a system and a method for realizing large-capacity conference service based on a single servicer. The system comprises a plurality of conventioneer client sides and a plurality of conference servers, wherein each conference server comprises a plurality of front processing unit, a sound mixing processing module and a back processing unit; the back processing unit comprises a buffering module, a decoding module and a denoising module, which are sequentially connected with one another; the input end of each buffering module is connected with one conventioneer client side and used for buffering and outputting the audio data of the conventioneer client side; and the decoding unit is used for converting the audio data which is buffered by the conventioneer client side after being coded to linear data. The audio data is classified to be coded after the sound mixing, the audio data is classified according to a decoding format supported by all conventioneer client sides after the negotiation,