1. It is mainly used for outdoor competitions of Olympic events and requirements for sound reinforcement of group assemblies. The system serves as an auxiliary facility to meet the needs of sound expansion; the loudspeaker is arranged reasonably and will not affect the other use functions of the stadium; the microphone inserting box is provided with sufficient microphone points to meet the needs of various competitions and meetings, and to meet the television stations and radio stations. For live broadcasting, it is necessary to reserve the audio transmission interface that meets the requirements; the sound reinforcement room will announce the venue, the audience corridor and the off site.

2. In case of emergency, the fire control room can give priority to all areas to publish emergency notices in the case of the opening of the sound expansion equipment.

3. because the worker stadium is a reconstruction project, the main structure has not changed, and centralized sound reinforcement should not be adopted.