【 Weak current College 】 sound engineering skills in design and tender

First, sound engineering design

Audio is handled through an electronic device and cannot meet certain environmental requirements and reaches a certain sound of electro-acoustic indicators, audio technology, it almost touches the human life in all aspects of the practice. The sound engineering is a branch of sound technology, is a door edge technology discipline. Sound engineering, in close connection with the Architectural Acoustics, for professional audio systems design, installation and commissioning of electroacoustic works, architectural acoustics, electro-acoustics and music combine complex subjects. Present audio engineering books at home is still rare. To this end I sound teaching and practical work experience on writing the script, would like to engage in audio engineering design of staff able to master sound engineering design knowledge, thus contributing to various places of scientific conduct sound engineering of juice.

The so-called sound engineering design and not by a man can do, he needs a lot of people, good design is a set of comprehensive design complete power. So engaged in sound engineering design in some ways is biased towards certain aspects, for example, some designers have a strong bias towards sound system configuration, some people have a strong bias towards Architectural Acoustics design, there are some people rely more on device installation and computer-aided design. Sound engineering design staff is based on the environment and the requirements of the intended use, the use of modern means science of all aspects of integration, based on national standards or industry regulations, after calculation reaches a certain design criteria, and the form of a written paper provides complete design reports with this design report can be achieved through the implementation of the reference basis, and is accessible through technical means to carry out scientific measurements, the ultimate realization of design before all content requirements using the function.

At present, the design strength of sound engineering is very rich, many important public places are domestic designers or design organizations, China has a number of high level design personnel strength. But we see some very professional people in the so-called "sound engineering design", their level is integrated device, simply do not know what design elements, so we have witnessed a lot of sound engineering, to the country resulted in significant economic losses, severe also raised a major accident, we should not be taken lightly, below sound engineering design talk about my point of view.

A sound engineering project successes and failures, depending on the project, the designer of awareness, if you have never contacted the project, according to General experience is that the design does not come out of the sound equipment designers tell us "world without a device is a universal sounder", that is a different audio devices are the limitations of his use, choice of equipment is our design resources, designers need to understand the different device specifications and product application examples, the conditional should go and listen to his sounds, be aware that not lame casually with those who do not fit the environment use of sound equipment. Sound engineering designers also should be aware of related standards and industry standards, these standards are the basis for design as well as audio system design indicators meets the requirements.

Sound engineering design first scene environment, which is based on the use of the end of the first step, for example, we designed a theatre, we'll know this is a kind of theatre, his architectural structure is what forms, by calculating his acoustic parameters is able to meet the requirements of the theatre. This step requires sound engineering designers who want to have a certain knowledge of Architectural Acoustics, the reverberation time, background noise, reverberation RADIUS etc are strictly required, if designers don't know this knowledge, a blind design, there are many places due to the neglect of acoustical design for this session, the result is an electro-acoustic effects do not reach the national standard of the indexes, and also will appear with each passing phenomenon, engaged in sound design will be built in sound not up to standard, so that the audio is not up to standard, in the decoration of the staff will speak, we are fully in accordance with the decoration, the effect is not a good is not good to your audio system. From a professional audio design this point of view, what problems are caused by the failure of the overall design. At present, there are specialized in the design Department of acoustics, the designers are professionally Architectural Acoustics graduate study, work experience and professional design team, from the design of the project should be able to meet the needs of sound system, but because the acoustical design is a very complex issue, the designers of the design, construction units not in accordance with the requirements for construction or the material change on, it is up to the design specifications of requirements. Only pay attention to the environmental design of the project, it should be said that our sound engineering design as a whole.
Acoustical design is not a must need professional acoustic design staff to complete the? because our country is engaged in professional acoustic design personnel, able to engage in a wide range of audio-related project design is one of our many projects is sound system design, these officers as experienced through the science of design and computation, similarly you can reach a certain usage requirements, some of us to the test, architectural acoustics, electro-acoustic indicators are very good. From this perspective, we believe in sound engineering design should have a certain architectural acoustic design capabilities. Ministry of information industry, technical training project is arranged for acoustical design specialized courses and through EASE software for virtual computing, to verify the results of the design.

Sound engineering design is not "sell out device". Many projects, design, our view is to sell equipment, no design. From the project's requirements if he should have a number of factors, the most important thing you should is to use the features and specifications, as to what kind of equipment used, it should be said that is another question. Sound engineering design should be an achievable, scientific equipment integration, his choice is to meet the requirements, and to meet certain specifications for the purpose. Is not a "world famous" and "patented product" and "top equipment". We saw a lot of tender documents where XX brand boasting international situations, certain brands get what institution. These are just being able to prove his brand awareness, and do not represent the product can be used for different environments. Design audio system should first consider whether the system meets the requirements of the project, the system's advanced nature and system of forward-looking and science are the design criteria, a calculated around these factors should be a standard, the standard should be to meet the requirements of national industry standards. With this result to the next step is equipment selection, this will refer to the investors ' requirements, recommend some brands offer consumers choice, select a comparison of methods should be, and finally select a preview of "price-performance" System. Our high performance-cost ratio is relative, because absolute thing does not exist.

Audio/video control room project instance

Sound engineering design should also consider the integrity of the system and we often went to the various project assessment, design report, boasting an advanced system, with advanced digital mixing consoles and media matrix, you can omit the various peripheral devices, but in the device list also exists a large number of analog equalizer, compressor, divider, and so on, when we consult why are they so advanced system also select those analog peripherals, their answer is analog device reliability. If you think the simulation of reliable why use digital devices, they will tell us the number of advanced equipment. In fact, system safety and reliability are the most important, any of a set of system if there is a security risk, should be able to take measures to address the important sound reinforcement tasks might have problems, we know there is a problem with the sound reinforcement system once it will cause irreparable consequences. In the sound system design, designers should take emergency measures, doing so just in case.

Sound engineering design report should be complete for this item, should not be casually looking for a so-called templates, follow this in firmly. Some units of design quality is not very high, simply do not know the design program, search on the network to a so-called audio sample, modify the tender about content even if the design, the result is a system simply by not supporting live. Engaged in sound engineering design of the unit's design staff will determine the fate of the company, design teams in our country have begun to take shape, professional design company has a professional audio/video and design departments, they cooperate with decoration singled acoustical and sound, video, lighting and other aspects of the design. The future will have more of such companies, we look to the future of China will be a group of professional audio and video engineering design team, in 2007, the Ministry of information industry, electronic industry professional skill identification guidance Center has established the "sound engineering Designer" for a technical career training programs, and officially launched in November, the registration number of breakthrough 280 more, first course accommodated more than 50 people, they come from various companies, are already engaged in the years of sound engineering design work, the participants of the training course is the first in our country, in accordance with sound engineering knowledge points system for training of students, teachers are domestic in sound engineering standards expert and Professor of theory with practical learning a sound engineering design of related processes and to design a thesis title, requires each student independently design report writing, but also after a thesis. You can predict such courses will more and more the quality of the training is also getting better and better.

Second, the sound engineering project bidding techniques

Our State of sound engineering project is a world first, the Government and enterprises of sound engineering project bidding process is required to determine those units can undertake project work, bidding has become a model, so engaged in sound engineering design of personnel should be aware of the issue of a tender, or we cannot apply this activity needs.

First, the sound engineering tender, we can search through the Web site, or in the bidding company to be registered, this is networking. Then just get invitations to tender, tenders are not what to buy, first understand what this project is your company can undertake projects, tender documents, there are no special requirements, such as: how many registered capital, similar projects, design personnel qualification, main product authorization, these are the basis for bid evaluation scoring when. If you do not have tender, blind purchase tenders, and participated in the bidding process, it will cause the waste of human and material resources. Since the bidding activities of the program is confidential, the bidder is not possible for reasons of not winning, that is to spend a lot of effort, the final result is a waste of resources. Any one tender his host object should be a direction, at least there should be three or more units to undertake, or you do not have the open bidding activity, that is to be taken directed procurement. As an open bid must be open, fair and impartial principles, provided that they meet the open bidding project, any unit are accessible. Purchased after the first tender documents should understand the requirements of bidding documents and technical purpose, through site visits and q/a, determine whether to participate in the tender, if it is determined that this project is your company's strengths, they should be active participation, to the best of design concepts, as well as high-quality technical tender, to the scientific construction organization capabilities to offer after-sales service and training, to high cost performance to win the bid Committee's recommendation.

Bidding is a very complex issue that some experienced units will tender making, spend a lot of time, a variety of charts and product description, project performance contract pay behind design concept clear and innovative, and able to make reasonable based on the project, use the bidding activities from the technical point ofDegrees are perfect. We see the bids from two aspects, one is the business segment: various tender documents in the business elements are complete: all kinds of certificates in accordance with the provisions of the package: various certificate is current within the power of Attorney and legal persons: identity whether condemnation; whether it be sealed in accordance with the requirements of a good sign. Many important bidding activities also stipulates the tenders of size and format, including the packaging is done by way of an explicit, non-compliant bid documents are handled as feibiao. The second is the technical part: this section is primarily carried out by professionals, national review has strict regulations, the first is to ask the sign of a bond, the main elements are the three principles of fairness and confidentiality agreements. Expert review of principles is targeted to a project evaluation are accreditation desk open, the assessment process is not involved in the tender units, they are primarily responsible for the Organization of work, technical experts, the expert opinions of independent experts, each scoring in scoring should be the basis for proposed score, that is why are you here to reduce a fraction of the tender documents, evaluation of some items can be said to be over and over again forklift instance retrial. Countries and enterprises through such bidding activity really got very good results, the project participants can compete fairly, by bidding can get their own projects, tender units can invest in high-quality projects.

Tender of skills:

Bid activities is the specification of the quality of the bidders determine success or failure of the bidding activity. His sense of responsibility and sense of mission is the key to the bidder's witty and answering response, is getting the mobile score, experts in the project, mainly obtained by the bidder's answer, the answer to the bidder's high quality experts will be on site to answer questions, if you are an amateur answer might lose opportunities.

Tenders should conduct a comprehensive inspection, seriously. Because the proposals produced unintended feibiao is not uncommon, and some very big project, hundreds of pages of documents in the binding problem, will lead to the embarrassment of accreditation. Enterprises in the tender before by a dedicated staff for composite, check each page if an error occurs. Main error: the directory and the content is wrong, wrong quote case, before and after content binding direction error, missing content, etc.

Tenders should comply with the requirements of production. The tender documents will require sealed bids, in particular in the tender of seal have strict rules, for example: "tender seal stamp of a legal person or agency authorized signature" at the "seal", is generally accepted that the opening of the sealed packaging should be sealed, often neglected has been packaged for bottom and sides of the seal, the seal of our creation to mean all to seal position, up and down and outs of all kinds, is likely to need to seal position, these locations must be sealed with the seal, and seal of a straddle and seal of the position sign articulation. Here are the other requirements of the tender should be in the file outside of the package, such as bid security and price price, etc. Seal should be sealed as required.

Design description should describe the data. Many bids design description are introducing device brand or the instructions for use, we need to tackle this project design concept and design, best should consist of a set of data, and should have the possibility of actual implementation. This data should be based on the project of the national standards or is the industry standard, the design of data should have the formula and method, otherwise unable to determine the accuracy of your design. Design of data indicators should be and equipment selection index is the same, and some design design indicators are able to meet the requirements, but the tender offer of equipment in the indicators do not reach the standard required, resulting in not winning.

A system as possible choose relative supporting products. A complete set of design options in the main devices of choice as possible relative supporting products, such as the speaker and the speaker of the brand, not the main speaker, low sound box, compensation and returned to send box, select a different speaker brands respectively, not matching with the loudspeaker amplifier is casual wear, appear as "small horse-drawn cart" is likewise not a high-power amplifier with low-power of sound box. Here is a recommendation is to choose a speaker amplifier of brand after registration when used this brand recommended amplifier series.

Quotation of scientific rationality with relative. The tenderer's attention is the price, in fact, the units are the most concerned about price, some indicators project identified the price range, some items cannot be revealed that the minimum bid. For the two cases I talk about my personal opinion: first public bidding for tender skills---open bidding is open, the maximum acceptable price, which is more than the quote will appear feibiao, analysis of the base price is reasonable, in accordance with the requirements of bidding documents, first to the configuration of your system, see prices and totals, if the results far beyond the base will have two possibilities: one is your choice of equipment and tender documents off, there will be a possible price increase is due to the equipment or purchasing channels, if both are no problem may be the tender documents makers a deviation, if this happens it does not appear realistic without the tenderer. Public bidding for tender by calculating indicators in accordance with the tender documents, may be far lower than the open bidding, in this case should such quotation, this first research assessment scoring methods, such as "tender tender documents are met, the low price and bidder", this indicates that the price floor who will have the possibility of the bid. It is not the price, the lower will be able to bid, the answer is Yes the "winning" is not possible, price score throughout the review accounted for 30 ~ 50%, other score if you are the highest scores, plus price score to be as successful. The second is not openBase price of tender skills-we believe that open and closed is no big difference, mainly because of your quote is scientific and reasonable, not patchwork of hearsay, for example, the price you get a message this project plans to invest $ 5 million, by calculating the actual item that is 300 million, in order to pursue the base price is pieced together a 498 million offer. The result is the public review of you become the King of the "standard", the first being afraid "Paz". As an experienced major units, they will have a very reasonable price of operational specifications, he will deliberately pursue what base price, if he considers that the tender should be what price, they will not be subject to any interventions, a quote from a scientific and reasonable feasible price, in order to be successful may introduce some preferential policies, such as profit or for certain aspects of sponsorship, etc.