Main characteristics of power magnification
Power amplifier abbreviations, which, in their main use, can be divided into two main categories, i. E., ** power amplifier and civilian. The performances used in stadiums, theatres, cabarets, halls, public places, and audio *** generally have unique requirements in their technical parameters, often referred to as ** or professional. In the case of hi-fi music for the family, the av system, and the karaoke entertainment, commonly referred to as civil or domestic. Despite differences in some of the characteristics, it is difficult to say that there is a clear line, for example, where a music recording *** is likely to be used for a family hi-fi or even hi-end. The main technical indicators for acoustic systems are frequency properties, cell noise ratio, dynamic range, transient response, stereo sound separation and stereo balance. Hubei stage sound price
Incentives are a harmonic generator, which uses the psychological acoustic characteristics of a human being to modify and glorify sound signals. A variety of methods, such as adding high frequency (hf) to sound, can improve sound quality, sound colour, sound penetration, and the spatial sense of sound. Modern stimulators not only create high frequency (hf) waves, but also have low frequency extension and music style features, making the bass more perfect and the music more performing。
Incentives
Increase the volume of sound: significantly increase the hearing of the sound, the stereotic sense of the sound image, and the isolation of the sound。
Increased sound penetration: the use of motivations increases the sound's clarity, understanding and performance, increases the penetration of the sound and makes it more instantaneous. Based on increased sound intensity, the use of incentives can also effectively reduce hearing fatigue。
Increase the spatial and stereo sense of sound: the use of a stimulator increases the transistor of sound, and a stimulator with a low frequency extension improves sound quality. Incentives have led to significant improvements in the frequency range, dynamic range and sound level of the sound, improved positioning and hierarchy of the sound, increased spatial and stereo sense of the sound, and thus improved the sound quality of the replaying of the sound. The jiangsu stage acoustic recommendation converts acoustic signals to telecommunications, amplified, processed, transmitted, converted to acoustic signals, and back to the acoustic environment served。
Composition of professional sound systems
1. Sound modulation and sound source equipment
Sound source equipment, including microphones, singers, box (disc) recorders, lasers (cds), tuners and karaoke machines, are used to provide a variety of audio signals. The transducer is the command centre in the sound system, which is capable of receiving and processing audio signals from multiple circuits, different levels of power, as well as of mixing and re-allocation and grouping, and of having multiple output ends that provide audio signals to the lower level. The console also has ***, signal display and speech functions。
Signal processing component
Sound signal processing equipment is also known as audio signal processing devices, including balancers, compressors/extensors, timers, noise-mitigators, hearing incentives, etc. The purpose and function of these devices is, on the one hand, to trim the signal for the sound colour to be glorified; and, on the other hand, to improve the quality of the channel itself with a view to improving the noise ratio and reducing distortion。
Output part of the 3 sound system -- power amplifiers and speaker
Power amplifiers are an important unit in the professional sound system. The audio signals from the modulates are processed by compressors, equalizers, incentives and sent to the power amplifiers, which magnify the audio signals to boost the soundbox and send the sound into the sound field。
Soundboxes are an important and integral part of professional sound and are one of the individual units of ** because sound in different structures have different styles, different characteristics and different sound effects. Soundboxes typically consist of three parts: loudspeakers, frequency splitrs and boxes。
The question-of-use sound technology sub-frequency is a sound device that can divide sound signals into several bands. We know that the frequency range of sound is between 20 hz-20 khz, and it is difficult to hope that the use of a loudspeaker* will guarantee a wide frequency like 20 hz-20khz because of the technical problems and difficulties. As a result, in general, high-quality loudspeaker systems, in order to ensure the frequency response and bandwidth of the re-emergence of the sound, are used mostly in the professional context in high-low-separation soundboxes, whereas the use of high-low-low-segregated sound-distribution soundboxes necessitates the use of frequency-severals. Main sound system device connection sequence: the console flattener (optional) → feedback inhibitor (optional) → main soundbox placement。
The compressor/limiter is the abbreviation of the compressor. Compressor: a amplifier that reduces its own gains as the level of the input signal increases. Limitor: a amplifier of this type where the output level reaches a certain value, regardless of how the input level is increased, the larger output level remains constant. The larger output level can be adjusted as needed. Generally, compressors appear in combination with compressors, and where they are, they also have limitations。
The principles of the compressor
The compressors are generally divided into two main functions: noise doors, compressors and amplifiers. Wireless microphones are frequently affected by a variety of factors, including interference with the frequency of the surrounding equipment, and user error. Official stage audio consulting services
Augmentation power: the rated power required for the amplification equipment, in watts, when the rated amplification pressure level of the system design is achieved. Hubei stage sound price
The sound centre of a general soundbox, high sound unit and low sound unit cannot be reunified at one point because they are flatly placed on the panel of the soundbox, so that the distance between the high sound and the low sound reaches the listener is different and this difference leads to a phase deviation that affects the correct recovery of the sound image. The same axial soundbox is used as an axial unit, which is in fact a combination of high and low-sound units, which are ably placed at the centre of the lower-sounding amplitude, thus ensuring that the high- and low-sound acoustic centre is the same point。
The two loudspeakers were installed on the same axis to replay the highs and the lows, respectively, and the two loudspeakers were to overlap on the diaphragm, and the sound field was ideal because of its physical location close to the point source. Hubei stage sound price
Shanghai city sound technology, inc., a dynamic company with advanced development ideas, advanced management experience, developing itself, demanding innovation, constantly preparing itself for more challenges, bringing together a great deal of people in buildings, building materials in areas such as shanghai city, and ** and many good evaluations in the industry, which are the result of our own efforts and of the progress that we have made together, have been a good driving force for us, and have led us to keep up on the road ahead, to move forward with innovation, to work towards a new level of corporate development strategy, to work together with all our staff, to work together to move forward with a common ocean sound technology supply and you together to a better future, to create more valuable products, and to create better conditions, more serious attitudes, more energy, and to work towards better growth together
