First, both of them constantly pursue the best sound effect.
1. They all need to use reverberation amplifier information processing (such as balanced reverberation effector), power amplifier, loudspeaker and various sound sources and other audio equipment.
2. The system is stable and reliable, and achieves the best performance-price ratio.
2. Audio effect is not only related to the performance of the system equipment, but also closely related to the sound environment (sound conditions), so all of them need to be concerned about sound conditions.
Because of the different service areas, service objects and usage functions, they also have great differences.
1. The service area of the civil audio is generally less than 50M2. The service object is a small number of family members and relatives and friends. Therefore, the output power of the amplifier is required to be small, and the power of the loudspeaker is also small. The characteristics of the loudspeaker's electro-acoustic conversion efficiency (sound pressure sensitivity), directional characteristics, maximum sound pressure level and other indicators are not very concerned. In order to pursue high-pitched quality, we should spare no effort (especially merits). It's a feverish HIFI system.
2. The service area of professional audio is very large, and the number of service objects is few, hundreds of people, up to tens of thousands of people. Therefore, considering the efficiency and cost of the system, the speaker needs to know more about the technical characteristics, hoping to get the best sound effect and the lowest use cost with the least system cost. "Horses should be good" and "horses should eat less grass".
3. Professional audio is widely used in theatres, cinemas, hotels, conference centers, sports competitions, music squares, entertainment centers, Convention and Exhibition centers, government schools, airports, ports, stations, subway and army barracks, etc. Its functions, site shapes and acoustic characteristics are different. The system design must be tailored to local conditions, there is no universal system supporting scheme, and the objects used for civil audio are single. It can adopt general matching mode and is easy to use.
4. Professional acoustics must be tailored to local conditions and carefully consider the sound field design (loudspeaker layout) of the system in order to achieve good acoustic effect.
5. Professional audio must design different signal processing methods and signal transmission ways according to its function.
6. Because of the large service area of professional audio, the importance of sound-building conditions is more prominent. The relationship between electro-acoustic system and sound-building conditions is the relationship between automobile and highway.
7. Civil audio is mainly the sound source program's sound return system. Professional audio has both the sound return function of the program source and the microphone's sound reinforcement function. How to prevent the sound feedback whistling and improve the system's sound transmission gain is an important issue in the sound reinforcement system.
8. Professional acoustics must also carefully consider the interconnection of professional lighting systems, video systems (projectors and video systems), communication systems and fire alarm systems (emergency broadcasting) and other related systems.