?

警(jing)官學院(yuan)大講堂是滿足文藝演出、主題晚(wan)會、音樂會、召開(kai)會議等現場擴聲(sheng)綜(zong)合性廳(ting)堂。本音響系統(tong)設計方案為各種(zhong)擴聲(sheng)形(xing)式提供優良的(de)音頻(pin)環境(jing)，產(chan)生(sheng)優秀的(de)音質效果(guo)。

我司(si)經充分理解圖紙及相應要求(qiu)后，以全面滿足廳堂的(de)功能要求(qiu)為原則(ze)，在設計的(de)過(guo)程(cheng)中(zhong)經過(guo)仔細的(de)考(kao)慮(lv)和分析，找到并(bing)形(xing)成了(le)一(yi)個適合警(jing)官學院(yuan)大講堂的(de)音響(xiang)系(xi)統方案。

1、音響系統的需求定位與功能分析

根據警官學院大(da)講堂(tang)實際使用中(zhong)的功能需求，在(zai)設計過程中(zhong)對(dui)該系(xi)統作如下基本定位：

！滿足文藝演出、主題晚會的擴聲要(yao)求；

！?滿足召開會(hui)議的擴聲要(yao)求

！滿足音(yin)樂(le)演奏(zou)的擴聲要求

根據多功(gong)能(neng)廳的使用需求定位(wei)，我們確(que)定了本(ben)音響(xiang)系統的主要功(gong)能(neng)是：

1).??改善語言清晰度(du)(du)和(he)音(yin)樂明晰度(du)(du)；

2).??提高節目源的響度(du)，擴展節目源的動態；

3).??改進不同演出中的聲平衡；

4).??具(ju)有(you)良好的(de)聲還(huan)原特(te)性（即保真度）；

5).??具有(you)極佳的聲像自然(ran)度（即聲像一致性(xing)）；

6).??在(zai)無樂隊演奏時重放伴(ban)奏音樂；

7).??可(ke)將部分節目信號存儲和預置程序以簡化操作；

2、音響系統的擴聲形式

根據相(xiang)關(guan)要求，并依據對當前國(guo)內外(wai)各(ge)種多功(gong)能(neng)(neng)廳(ting)(ting)堂音響(xiang)(xiang)系統(tong)(tong)的(de)調查研究(jiu)，確定(ding)該廳(ting)(ting)堂擴聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)系統(tong)(tong)采用左(zuo)、中、右三(san)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)道主擴聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)與多點(dian)位補(bu)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)相(xiang)結合(he)的(de)擴聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)方式，觀眾廳(ting)(ting)左(zuo)、中、右三(san)個(ge)主擴聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)道，每個(ge)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)道基(ji)本獨立覆蓋全(quan)場，在觀眾廳(ting)(ting)設置多點(dian)位補(bu)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)揚(yang)(yang)(yang)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)器(qi)(qi)，通(tong)過提(ti)高直(zhi)達(da)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)與混響(xiang)(xiang)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)能(neng)(neng)比，從(cong)而提(ti)高語(yu)言清(qing)晰度，使(shi)(shi)得整個(ge)音響(xiang)(xiang)系統(tong)(tong)能(neng)(neng)夠兼顧(gu)左(zuo)、右聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)道立體聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)，左(zuo)、中、右三(san)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)道立體聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)，單聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)道擴聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)等多種擴聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)形式。所有揚(yang)(yang)(yang)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)器(qi)(qi)均使(shi)(shi)用有源一體化揚(yang)(yang)(yang)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)器(qi)(qi)，保證了(le)功(gong)放與揚(yang)(yang)(yang)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)器(qi)(qi)間的(de)一致性(xing)。

舞臺音頻系統選型：

揚(yang)聲器(qi)是(shi)音響系統中(zhong)最(zui)(zui)重要的(de)(de)(de)組成(cheng)部分(fen)。由于電子技(ji)術的(de)(de)(de)發展，聲系統中(zhong)電子設備的(de)(de)(de)頻(pin)率響應(ying)與相位響應(ying)上的(de)(de)(de)處理已(yi)達到很高水平，影(ying)響音響系統還原性能(neng)的(de)(de)(de)主要瓶頸是(shi)換能(neng)器(qi)的(de)(de)(de)失真，因此揚(yang)聲器(qi)的(de)(de)(de)選用是(shi)對(dui)最(zui)(zui)終還音質量影(ying)響最(zui)(zui)大、最(zui)(zui)有(you)決定性的(de)(de)(de)一個環節(jie)。

本次揚聲(sheng)器(qi)(qi)系(xi)統的(de)所有功能完(wan)全滿足使用(yong)的(de)要(yao)求(qiu)，觀(guan)眾(zhong)(zhong)廳設(she)置(zhi)左中(zhong)右(you)立(li)體聲(sheng)擴(kuo)聲(sheng)和多(duo)點位補聲(sheng)擴(kuo)聲(sheng)系(xi)統。其中(zhong)中(zhong)央聲(sheng)道獨立(li)覆(fu)蓋全場觀(guan)眾(zhong)(zhong)，左右(you)聲(sheng)道覆(fu)蓋全場觀(guan)眾(zhong)(zhong)，均滿足并高于設(she)計技術指(zhi)標要(yao)求(qiu)。另外，完(wan)全按(an)照使用(yong)要(yao)求(qiu)配置(zhi)了舞臺流動返(fan)送監聽(ting)揚聲(sheng)器(qi)(qi)和固定返(fan)送監聽(ting)揚聲(sheng)器(qi)(qi)。

所選用的主(zhu)擴聲(sheng)(sheng)(sheng)(sheng)揚(yang)(yang)(yang)聲(sheng)(sheng)(sheng)(sheng)器(qi)是美(mei)國QSC KLA12有(you)(you)源(yuan)(yuan)線陣列揚(yang)(yang)(yang)聲(sheng)(sheng)(sheng)(sheng)器(qi)系統12只(zhi)(zhi)(zhi)；主(zhu)擴有(you)(you)源(yuan)(yuan)低音(yin)揚(yang)(yang)(yang)聲(sheng)(sheng)(sheng)(sheng)器(qi)QSC KW181 8只(zhi)(zhi)(zhi)；左右聲(sheng)(sheng)(sheng)(sheng)道降聲(sheng)(sheng)(sheng)(sheng)像有(you)(you)源(yuan)(yuan)揚(yang)(yang)(yang)聲(sheng)(sheng)(sheng)(sheng)器(qi)QSC KW152 4只(zhi)(zhi)(zhi)；舞(wu)臺固定安(an)裝擴聲(sheng)(sheng)(sheng)(sheng)有(you)(you)源(yuan)(yuan)揚(yang)(yang)(yang)聲(sheng)(sheng)(sheng)(sheng)器(qi)QSC K12 4只(zhi)(zhi)(zhi)；舞(wu)臺流動安(an)裝擴聲(sheng)(sheng)(sheng)(sheng)有(you)(you)源(yuan)(yuan)揚(yang)(yang)(yang)聲(sheng)(sheng)(sheng)(sheng)器(qi)QSC K12 4只(zhi)(zhi)(zhi)；一層觀眾席效(xiao)(xiao)果聲(sheng)(sheng)(sheng)(sheng)有(you)(you)源(yuan)(yuan)揚(yang)(yang)(yang)聲(sheng)(sheng)(sheng)(sheng)器(qi)QSC K8 12只(zhi)(zhi)(zhi)；二層觀眾席效(xiao)(xiao)果聲(sheng)(sheng)(sheng)(sheng)有(you)(you)源(yuan)(yuan)揚(yang)(yang)(yang)聲(sheng)(sheng)(sheng)(sheng)器(qi)QSC K8 8只(zhi)(zhi)(zhi)；控制(zhi)室監聽有(you)(you)源(yuan)(yuan)揚(yang)(yang)(yang)聲(sheng)(sheng)(sheng)(sheng)器(qi)QSC K8 2只(zhi)(zhi)(zhi)。

方便(bian)簡(jian)單易操作(zuo)的控制處理系統所選(xuan)用了英國(guo)最新開發的ALLEN&HEATH?GLD112緊(jin)湊的數字調音臺帶可(ke)擴(kuo)展、使用方便(bian)快捷的模擬風格界面(mian)、具(ju)有可(ke)選(xuan)擇的中文操作(zuo)界面(mian)，遠程(cheng)輸入(ru)/輸出；1臺ALLEN&HEATH?AR2412以(yi)及2臺ALLEN&HEATH?AR0804擴(kuo)展接口箱；話筒(tong)(tong)設備采用了德(de)國(guo)SENNHEISER、美國(guo)SHURE相關品牌話筒(tong)(tong)。

舞臺演出(chu)監督(du)及(ji)內部通(tong)訊系統(tong)：高速球攝像機、攝像機控(kong)制器(qi)、嵌入式硬盤音視頻(pin)錄(lu)像機、貴賓(bin)室(shi)顯示器(qi)、視頻(pin)分(fen)配器(qi)、對講(jiang)通(tong)訊系統(tong)等(deng)設備配置完全滿足(zu)演出(chu)需要。

舞臺視頻顯示系統：LED大屏顯示、LED彩幕、觀眾席兩側輔助LED顯示、LED電子會標

舞臺燈光及舞臺機械系統：

舞臺(tai)燈具使用(yong)聚光燈MONON/魔龍、聚光燈GTD/明道(dao)、LED染(ran)色(se)燈、LED舞臺(tai)背景染(ran)色(se)燈、圖(tu)案電(dian)(dian)腦燈GTD/明道(dao)、光束電(dian)(dian)腦燈GTD/明道(dao)、氙(xian)氣追(zhui)光燈奧羅拉以(yi)(yi)及舞臺(tai)特(te)效(xiao)設(she)備等。對于舞臺(tai)燈光設(she)備供電(dian)(dian)采用(yong)了RGB-6i/96路、RGB-6i/60路智能控制直通電(dian)(dian)源(yuan)柜帶有DMX-512接(jie)口、網(wang)(wang)接(jie)口，RJ-45標準LAN以(yi)(yi)太網(wang)(wang)接(jie)口和光纖接(jie)口，支(zhi)持硅柜的(de)網(wang)(wang)絡(luo)連接(jie)，并支(zhi)持網(wang)(wang)絡(luo)協議。舞臺(tai)機械還(huan)滿(man)足播放(fang)電(dian)(dian)影(ying)的(de)需(xu)要(yao)配置(zhi)了弧形銀幕框吊架。