Background Music System of Pa Speaker System
Broadcasting audio system covers a wide range of areas, from shopping malls, schools, hotels, stations, wharfs, squares to venues, theatres, gymnasiums and so on. They are closely related to it.
1.1 In civil engineering design, broadcasting system can be divided into the following categories:
A. Pa speaker system for public areas (shopping malls, stations, wharfs, shopping malls, restaurants, corridors, classrooms, etc.) and parking lots.
This system is mainly used for voice broadcasting, so clarity is the most important. Moreover, this system usually broadcasts background music, and it can be converted to emergency broadcasting in case of disasters or emergencies.
B.Radio and audio system for hotel rooms.
This system includes room audio broadcasting and emergency broadcasting. It is usually delivered by the bedside cabinet in the room. The room broadcasting contains many bands which can be freely chosen. In emergency broadcasting, the room broadcasting is automatically interrupted and switched to emergency broadcasting.
C.The auditorium sound reinforcement system represented by auditorium, theatre and gymnasium.
This is a professional sound reinforcement system. It not only considers the electroacoustic technology, but also involves the architectural acoustics. Both of them should be considered as a whole and they should not be neglected. This kind of broadcasting system often has comprehensive and multi-purpose requirements. It can not only be used for speech amplification in venues, but also for literary and artistic performances. For large-scale live performance, the electric power is tens of thousands of watts less, and as many as hundreds of thousands of watts. Therefore, it is necessary to use high-power loudspeakers and power amplifiers in the system configuration and equipment selection. There are certain requirements in use, and attention should be paid to the load of power lines.
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