音源設(shè)計(jì)
Sound source design
報(bào)告廳主要用于各種類型的報(bào)告演講、召開會(huì)議以及文藝表演，其中演講報(bào)告、召開會(huì)議為主，設(shè)計(jì)使用的音源主要有：電腦、點(diǎn)歌機(jī)、會(huì)議話筒GM-6500T系列、無線話筒GM-9200U、有線話筒GM-340等。
The lecture hall is mainly used for various types of presentations, meetings, and artistic performances, with speech reports and meetings being the main ones. The designed sound sources mainly include computers, song machines, conference microphones GM-6500T series, wireless microphones GM-9200U, wired microphones GM-340, etc.
擴(kuò)聲設(shè)計(jì)
Sound reinforcement design
考慮到報(bào)告廳為階梯狀房間，為實(shí)現(xiàn)聲場(chǎng)均勻，此報(bào)告廳音響系統(tǒng)設(shè)計(jì)由主擴(kuò)音箱、輔助音箱，低音音箱以及返送音箱組成，其中輔助音箱主要是輔助、環(huán)繞的作用。
Considering that the lecture hall is a stepped room, in order to achieve uniform sound field, the sound system design of this lecture hall consists of a main amplifier, auxiliary speakers, bass speakers, and return speakers. The auxiliary speakers mainly serve as auxiliary and surround speakers.
主擴(kuò)音箱以及主擴(kuò)功放的設(shè)計(jì)
Design of main amplifier and main amplifier
作為音頻系統(tǒng)質(zhì)量直接表現(xiàn)者，音箱起著重要的作用。作為擴(kuò)聲主音箱，要求音色甜美，高音單元和低音單元覆蓋范圍幾乎一樣，可確保整個(gè)觀眾席前排和后排接受的聲場(chǎng)聲壓均勻。因此，我們?cè)O(shè)計(jì)使用2只雙15寸PV級(jí)音箱GM-PV750作為主擴(kuò)音響，用于聲像定位及整場(chǎng)擴(kuò)聲。根據(jù)線陣音箱的功率，我們?cè)O(shè)計(jì)使用1臺(tái)功放GM-9800G進(jìn)行配合使用。
As a direct indicator of audio system quality, speakers play an important role. As the main speaker for sound reinforcement, it is required to have a sweet tone, with almost the same coverage range of high and low pitched units, ensuring that the sound pressure received by the front and rear seats of the entire audience is uniform. Therefore, we have designed to use two dual 15 inch PV grade professional speakers GM-PV750 as the main amplifier for audio and video positioning and overall sound reinforcement. Based on the power of the linear array speaker, we design to use one professional amplifier GM-9800G for coordination.
輔助音箱以及輔助功放的設(shè)計(jì)
Design of auxiliary speakers and auxiliary amplifiers
報(bào)告廳的面積比較大，為了保證聲場(chǎng)均勻同時(shí)考慮中間區(qū)域的聲場(chǎng)覆蓋情況，我們?cè)O(shè)計(jì)在報(bào)告廳的兩側(cè)分別放置3只輔助音箱GM-PV450，設(shè)計(jì)3臺(tái)功放GM-9550G配合輔助音箱使用。
The area of the lecture hall is relatively large. In order to ensure a uniform sound field while considering the coverage of the middle area, we have designed to place three auxiliary speakers GM-PV450 on both sides of the lecture hall, and three professional amplifiers GM-9550G to be used in conjunction with auxiliary speakers.
低音音箱、返送音箱以及功放的設(shè)計(jì)
Design of bass speakers, return speakers, and amplifiers
報(bào)告廳的一個(gè)主要功能是文藝演出活動(dòng)，演出的效果是重中之重，因此我們?cè)O(shè)計(jì)在舞臺(tái)的臺(tái)口處安裝2只單18寸超低音音箱GM-PV800；4只12寸返送音箱GM-PV300F以保證文藝演出的低音以及舞臺(tái)效果，根據(jù)音箱的功率，我們分別設(shè)計(jì)使用1臺(tái)GM-9800G和2臺(tái)GM-9400G配合超低音音箱和返送音箱使用。
One of the main functions of the lecture hall is artistic performance activities, and the performance effect is of utmost importance. Therefore, we have designed to install two single 18 inch subwoofers GM-PV800 at the entrance of the stage; Four 12 inch return speakers, GM-PV300F, are designed to ensure the bass and stage effects of artistic performances. Based on the power of the speakers, we will use one GM-9800G and two GM-9400G speakers to complement the subwoofer and return speakers.
會(huì)議部分
Meeting section
報(bào)告廳的使用主要還是學(xué)校的日常會(huì)議，我們?yōu)橛脩粼O(shè)計(jì)使用無線會(huì)議系統(tǒng)GM-6500T。該款系統(tǒng)具有聲音保真度高，信噪比高，無延時(shí)等特點(diǎn),使用新型防嘯叫單指向高靈敏度拾音頭，使音質(zhì)更加。根據(jù)學(xué)校的實(shí)際需要設(shè)計(jì)安裝8只話筒單元，由1只無線會(huì)議系統(tǒng)主席單元GM-6500C和7只無線會(huì)議系統(tǒng)列席單元GM-6500D組成，同時(shí)我們還配備了充電箱GM-PW16和移頻器GM-6600F，充電箱保障了話筒單元的充電系統(tǒng)，的同時(shí)省去了更換電池的過程,移頻器的使用能夠避免會(huì)議使用期間話筒的嘯叫現(xiàn)象。
The use of the lecture hall is mainly for daily school meetings, and we design and use a wireless conference system GM-6500T for users. This system has the characteristics of high fidelity of sound, high signal-to-noise ratio, no delay, etc. It uses a new type of anti squealing single direction high sensitivity cartridge to make the sound quality more perfect. According to the actual needs of the school, we have designed and installed 8 microphone units, consisting of 1 wireless conference system chairman unit GM-6500C and 7 wireless conference system attendance units GM-6500D. At the same time, we are equipped with a charging box GM-PW16 and a frequency shifter GM-6600F. The charging box ensures the charging system of the microphone unit, saves energy and environmental protection, and eliminates the process of replacing batteries. The use of the frequency shifter can avoid the whistling phenomenon of the microphone during conference use.
為了保證會(huì)議聲場(chǎng)均勻，我們?yōu)橛脩粼O(shè)計(jì)安裝12只6.5寸吸頂揚(yáng)聲器GM-MT007，每只揚(yáng)聲器為一個(gè)獨(dú)立通道，可以單獨(dú)控制它的均衡，聲壓，延時(shí)，用以平衡聲場(chǎng)，設(shè)計(jì)使用6臺(tái)GM-9180G配合吸頂揚(yáng)聲器和返送音箱使用。
In order to ensure a uniform conference sound field, we have designed and installed 12 6.5-inch ceiling speakers GM-MT007 for users. Each speaker is an independent channel that can independently control its balance, sound pressure, and delay to balance the sound field. We have designed to use 6 GM-9180G speakers in conjunction with ceiling speakers and return speakers.
音頻處理設(shè)計(jì)
Audio processing design
無論是會(huì)議還是演出活動(dòng)對(duì)音質(zhì)的要求比較高，根據(jù)使用需要會(huì)對(duì)音頻進(jìn)行處理，比如說變聲以及延時(shí)等功能，因此，音頻處理設(shè)備的設(shè)計(jì)也是系統(tǒng)設(shè)計(jì)的關(guān)鍵點(diǎn)之一，我們?cè)O(shè)計(jì)使用的音頻處理設(shè)備主要有以下幾種：
Whether it is meetings or performance activities, the requirements for sound quality are relatively high. Audio processing is performed according to usage needs, such as sound variation and delay functions. Therefore, the design of audio processing equipment is also one of the key points in system design. The audio processing equipment we design and use mainly includes the following types:
調(diào)音臺(tái)
mixer
調(diào)音臺(tái)的作用使將各種音源的音頻信號(hào)按照要求進(jìn)行混合處理，可以分為多組輸出，是音響系統(tǒng)的核心部分，直接影響系統(tǒng)整體的效果；
The function of the mixer is to mix and process audio signals from various sources according to requirements, which can be divided into multiple groups of outputs. It is the core part of the audio system and directly affects the overall performance of the system;
均衡器
Equalizer
為了使返送音箱能夠充分的發(fā)揮作用，我們?cè)O(shè)計(jì)使用1臺(tái)均衡器，可以對(duì)音色進(jìn)行修飾，讓表演者更好的把握節(jié)奏，掌握整體的效果；
In order to fully utilize the return speaker, we have designed and used one equalizer to modify the sound color, allowing the performer to better grasp the rhythm and overall effect;
效果器
Effector
效果器主要是對(duì)聲音進(jìn)行美化修飾作用，使現(xiàn)場(chǎng)的使用效果更加的吸引人；
The effector mainly beautifies and modifies the sound, making the on-site use effect more attractive;
音頻處理器
Audio processor
音頻處理器是音頻處理的控制部分，集合了壓限器、分頻器、延時(shí)器、等功能，使系統(tǒng)的音頻處理部分更加的強(qiáng)大。
The audio processor is the central control part of audio processing, which integrates functions such as voltage limiter, frequency divider, delayer, etc., making the audio processing part of the system more powerful.
電源時(shí)序器
Power sequencer
為了方便控制管理，我們?cè)O(shè)計(jì)使用電源時(shí)序器，通過電源的控制完成對(duì)設(shè)備的集中控制管理，方便學(xué)校對(duì)設(shè)備的管理的同時(shí)方便后期的維護(hù)保養(yǎng)。
In order to facilitate control and management, we design and use a power sequencer to achieve centralized control and management of the equipment through power control, which is convenient for the school to manage the equipment and facilitate later maintenance.
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