Wednesday, December 29, 2010

Weak current College】 【aided design and sound field design --- Power By】 【China power house network.


Aided design: halls of Architectural Acoustics requirements for the vast majority of professional audio works are carried out in the room, room of the senses, in addition to some important specifically designed for sound design of the building, most of the buildings in the layout and structure are not considered to acoustic requirements. However, audio works of architectural acoustics and very important, we can go to a rigorous scientific design of building experience again, its reasonable acoustic structure and good sound diffusion and dissemination of results, you get the beauty, the same sound amplifying devices run here, of course, will give full play to its exquisite sound quality; and an absence of acoustical design of sound engineering, regardless of whether it owns what luxury equipment, its acoustic effect is not very good. Visible, the Auditorium of the architectural acoustic design is a very important, but also very meaningful work, its role would be more effective. Although the general norms of audio engineering to make the necessary sound field design, but due to the constraints, relatively its effectiveness is not with the construction decoration of acoustic design compared with the earlier stage. Particularly in the implementation of the acoustic effects and processing, the architectural decoration engineering than sound engineering easier. Therefore, we emphasize here that the purpose of the acoustic requirements, is the hope in the overall design is timely, as soon as possible to and building design and construction units, they engage in acoustic effect design assistance, feasibility, generally includes both structural and decorative. First, the structure of the Auditorium of the overall structure of the first to avoid standing wave generation, this requires that the ratio of science halls. Among them in order to better achieve sound diffusion and light cast, halls and containers should be sufficient guarantee that the General requirements 4 meters; Secondly, the need to avoid the narrow curved walls, parallel effect of smooth structure of sound diffusion; Furthermore it is necessary to pay attention to the location of the control room, to facilitate site operation and observation, the attention of considering construction lay line, strictly avoid a very small space and field quarantined or control room. Second, the decorative aspects of architectural decoration,: consider artistic problems. but in the overall design of sound engineering, requires certain effects lighting effects of decorative scheme of the necessary limit. First requires the selection of decorative materials in strict accordance with the results of the acoustic calculations, at the same time to avoid using hollow or support unstable materials and structures; Secondly, to take into account the overall tone of the decoration to and the use of sound engineering, visually to bring the light of the shapes, patterns and colors. Sound design: a professional audio works of important work is the design of the sound field. For works of ultimate quality, sound field design is also a key point. The purpose of sound field design is that the calculation of the use of science, as do guidance sound equipment construction of an ideal sound reinforcement space, the device performance full of play. In a small number of strict construction decoration design generally to make the necessary sound field design, but for the specification in accordance with the procedure for professional audio engineering work, eliminate any irrational factors, or the need for comprehensive sound field design. 1. acoustic treatment: this is the sound field design is also the first step in many technology companies easily ignore steps. The purpose of sound insulation is in a specific area within the creation of a project are not subject to external influence or impact on the outside of the quiet sound field. It includes and the outside noise, sound amplification of noise between rooms, soundproof walls, are part of the Windows and doors and ceiling. External noise is not let outside noise incoming indoor or indoor voice to the outside. External noise through incoming indoor indoors total noise control, usually higher practical sound engineering requirements in the following 35-40dB; indoor voice to the outside world can look on the outside of the environmental impact, in accordance with the provisions of the environmental sector, generally not higher than the environment mean plus 10-15dB for good. 2. echoes and feedback: the echo generation because the reverberation time is too long to produce a noticeable lag in tone, ECHO can only improve by acoustic design; feedback is too strong for certain frequencies, microphone pickup after system to enlarge, and then pick and then zoom in this cycle, feedback through the feedback suppressor or frequency divider. Feedback suppressor upscale: SHUE DFR11EQ SONY SRP-FR300 SABINE FBX2220; low of BEHRINGER DSP1124P SPIRIT DSP8000, etc. Move the prescaler: domestic: l sound, Lake Hill, sky; imports: POLYFUSION (Pro).

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