As a system problem, public address must be comprehensively considered in the system design. On the basis of selecting the electroacoustic equipment with good characteristics, according to the careful system design, careful system adjustment and excellent sound construction standard, we can achieve the beautiful and natural sound quality.
The music background is commonly known as BGM. Its key function is to cover the noise and create a relaxed and harmonious atmosphere. If the listener does not concentrate on listening, he can not identify the location of the sound source. The sound is small. It is a song that creates a relaxed and comfortable natural environment. Therefore, there are two practical effects of music background, one is to cover the noise in psychological state, and the other is to create an atmosphere consistent with the indoor air, which is widely used in hotels, hotel restaurants, restaurants, large shopping malls, hospital clinics, office buildings, etc
The design of public address horn speaker system generally starts from the sound field (i.e. the placement position of the speaker), and then pushes back to the power amplifier circuit, sound solution system, mixing console, and microphone and other sound sources. This kind of gradually backward design process is very necessary. As the sound field design scheme is based on the consideration of the system function and sound quality, it involves the selection of speaker horn system model, sound supply plan scheme and data signal mode. Only by specifying thePA loudspeaker system can we carry out the calculation of the output power of the power amplifier circuit driver and the definition of the driver data signal mode, and then further define the signal analysis plan and the model selection of the mixer according to the driver output power distribution plan.
Today, with the rapid development of high and new technology, customers' requirements for new technology are increasing. It is more critical to produce technical and new products that meet customer satisfaction. The traditional definition of public broadcasting can not meet the requirements of customers and improve the indoor space of market sales at many levels. The same is true for the public broadcasting of the processing plant. The digital public broadcasting system has become a popular trend in the development of radio programs nowadays. The digital public broadcasting system is flexible in the use of data technology, making the actual operation of customers more visualized, simpler, more flexible in system configuration and more powerful. Therefore, it is necessary to upgrade public broadcasting to a digital system, which can deal with the problems that cannot be solved by traditional definition of public broadcasting in the past in a more visualized, more efficient and more convenient way.
