source:Industry News release time:2022-02-19 Hits: Popular:Brand bar audio wholesale
Maybe some novices don't know the relationship between the speaker unit and the cabinet of the speaker, so they blindly start with some audio manufacturers who represent foreign brand audio units, but in fact, many manufacturers themselves have not dealt with the relationship between the speaker unit and the cabinet. . The main reason is that the acoustic structure has not been dealt with properly. A high-quality cabinet is perfect for the sound emitted by the sound field, so when designing the cabinet, you should not only focus on designing according to the market trend, but design the whole cabinet according to the sound field of the speaker unit, so as not to Waste the high cost of imported speaker units.
(1) Treatment of sound insulation
In order to create a quiet sound field and avoid affecting the units and residents in the surrounding environment, at the beginning of the sound field design, the sound insulation treatment should be considered first in order to provide a good congenital condition for the sound field. The sound insulation treatment involves buildings. Sound insulation from the outside world, and sound insulation of rooms in the building; the parts of sound insulation include: sound insulation of partition walls, sound insulation of doors and windows, and sound insulation of ceilings connected to rooms at the top.
(2) On-site noise reduction
Many people do not pay attention to the background noise of the scene, but they all put forward corresponding requirements in the relevant national standards, such as: the first-class karaoke hall should be less than 35dB, and the first-class disco should be less than 40dB. The reason is: the increase of background noise The large response will reduce the signal-to-noise ratio of the sound reinforcement system and affect the quality of the project. In order to effectively solve this problem, the sound insulation mentioned above should be limited, for example: whether the noise of the air outlet of the central air conditioner can be solved by the installation unit; the exhaust fan noise, size, proper installation location, etc.
(3) In the case of building structure
Here we mainly talk about some local structures of buildings related to engineering installation. First, we must obtain the approval of the construction unit for the load-bearing capacity of the walls or roofs that need to be hoisted in the audio engineering, especially when the weight of the light shed is large. The safety of hoisting is more important; secondly, it is necessary to have a more detailed understanding of the room structure in the existing building, the location of the embedded pipeline, and the outlet, so as to facilitate the possible insertion of pipes and wiring construction, and the internal structure of the building. We should understand the weak links, and figure out what landlords can change and what can't be changed.
(4) Realization of sound uniformity
In the relevant national standards, it is expressed by the concept of sound field unevenness. Generally, the deviation of the test value of the field pressure level at each point is required to be less than 2dB. How to achieve a uniform sound field? First of all, there should be no obvious defects in the building structure.
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