?

警(jing)官學院大(da)講(jiang)堂(tang)是滿(man)足文藝(yi)演出、主題晚會(hui)、音(yin)樂會(hui)、召(zhao)開(kai)會(hui)議等現場擴(kuo)聲綜合性廳(ting)堂(tang)。本音(yin)響系統設計(ji)方案為各(ge)種擴(kuo)聲形式提供優良(liang)的音(yin)頻環境，產生(sheng)優秀的音(yin)質效果。

我司經(jing)充(chong)分(fen)理(li)解(jie)圖紙及(ji)相應要求(qiu)后(hou)，以全面滿(man)足(zu)廳(ting)堂的功能要求(qiu)為原則，在設計的過程中經(jing)過仔細的考慮和分(fen)析，找(zhao)到并形成了(le)一個適(shi)合(he)警官學院大講堂的音響系統方案。

1、音響系統的需求定位與功能分析

根據警官(guan)學院大講堂(tang)實際使(shi)用中的功能需求，在設計過(guo)程(cheng)中對該系(xi)統作如下基本定位：

！滿足文藝演出(chu)、主題(ti)晚會的擴聲要求；

！?滿足召開會議的擴聲要求

！滿足音樂(le)演奏的擴聲要(yao)求(qiu)

根據(ju)多功能(neng)(neng)廳(ting)的使(shi)用(yong)需求定(ding)(ding)位(wei)，我(wo)們確定(ding)(ding)了本音響系統的主(zhu)要功能(neng)(neng)是(shi)：

1).??改善語言(yan)清晰度(du)和音(yin)樂明晰度(du)；

2).??提高(gao)節目源的(de)響度，擴展節目源的(de)動態；

3).??改進不同演(yan)出中的聲平衡；

4).??具有良好的聲還原特性（即保真度(du)）；

5).??具有(you)極佳的聲像自然度（即聲像一(yi)致性）；

6).??在無樂隊演奏時重放伴奏音(yin)樂；

7).??可將部(bu)分節目信(xin)號存(cun)儲(chu)和預置程序以簡化(hua)操作；

2、音響系統的擴聲形式

根據相關要求，并依據對當前國內外各種多(duo)功(gong)能廳(ting)堂(tang)音(yin)響系統(tong)(tong)的(de)調查研究，確定(ding)該廳(ting)堂(tang)擴(kuo)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)系統(tong)(tong)采(cai)用(yong)左(zuo)、中、右三(san)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)道(dao)主擴(kuo)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)與多(duo)點位(wei)補聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)相結合的(de)擴(kuo)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)方式，觀(guan)眾廳(ting)左(zuo)、中、右三(san)個主擴(kuo)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)道(dao)，每個聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)道(dao)基(ji)本獨立覆蓋全場，在觀(guan)眾廳(ting)設置(zhi)多(duo)點位(wei)補聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)揚(yang)(yang)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)器(qi)，通過提高直達聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)與混(hun)響聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)能比，從而提高語(yu)言清(qing)晰度，使得整(zheng)個音(yin)響系統(tong)(tong)能夠(gou)兼顧左(zuo)、右聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)道(dao)立體聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)，左(zuo)、中、右三(san)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)道(dao)立體聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)，單聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)道(dao)擴(kuo)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)等多(duo)種擴(kuo)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)形式。所有(you)揚(yang)(yang)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)器(qi)均使用(yong)有(you)源一體化揚(yang)(yang)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)器(qi)，保(bao)證了功(gong)放與揚(yang)(yang)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)器(qi)間的(de)一致性。

舞臺音頻系統選型：

揚聲(sheng)器(qi)是音響(xiang)(xiang)系統(tong)中(zhong)最重(zhong)要的(de)(de)組成部(bu)分。由于電(dian)子技術的(de)(de)發展，聲(sheng)系統(tong)中(zhong)電(dian)子設備的(de)(de)頻率響(xiang)(xiang)應與相(xiang)位響(xiang)(xiang)應上的(de)(de)處理(li)已達到很高(gao)水平(ping)，影(ying)響(xiang)(xiang)音響(xiang)(xiang)系統(tong)還原(yuan)性能的(de)(de)主(zhu)要瓶頸是換能器(qi)的(de)(de)失真(zhen)，因(yin)此(ci)揚聲(sheng)器(qi)的(de)(de)選(xuan)用是對(dui)最終還音質量影(ying)響(xiang)(xiang)最大、最有決定(ding)性的(de)(de)一個環節。

本次(ci)揚(yang)聲(sheng)器(qi)系統的所有功(gong)能完全(quan)滿足使用(yong)的要(yao)求，觀(guan)眾(zhong)廳設置(zhi)左中(zhong)右立體聲(sheng)擴聲(sheng)和多點位補聲(sheng)擴聲(sheng)系統。其中(zhong)中(zhong)央聲(sheng)道獨立覆蓋全(quan)場觀(guan)眾(zhong)，左右聲(sheng)道覆蓋全(quan)場觀(guan)眾(zhong)，均滿足并(bing)高(gao)于(yu)設計(ji)技(ji)術(shu)指標要(yao)求。另外，完全(quan)按照(zhao)使用(yong)要(yao)求配置(zhi)了舞(wu)臺流動返(fan)送監(jian)聽(ting)揚(yang)聲(sheng)器(qi)和固定(ding)返(fan)送監(jian)聽(ting)揚(yang)聲(sheng)器(qi)。

所選用的主擴(kuo)聲(sheng)(sheng)揚(yang)聲(sheng)(sheng)器(qi)(qi)(qi)是美國QSC KLA12有(you)(you)(you)源(yuan)線陣列揚(yang)聲(sheng)(sheng)器(qi)(qi)(qi)系(xi)統12只(zhi)(zhi)(zhi)；主擴(kuo)有(you)(you)(you)源(yuan)低音揚(yang)聲(sheng)(sheng)器(qi)(qi)(qi)QSC KW181 8只(zhi)(zhi)(zhi)；左右聲(sheng)(sheng)道(dao)降聲(sheng)(sheng)像有(you)(you)(you)源(yuan)揚(yang)聲(sheng)(sheng)器(qi)(qi)(qi)QSC KW152 4只(zhi)(zhi)(zhi)；舞臺固定(ding)安裝擴(kuo)聲(sheng)(sheng)有(you)(you)(you)源(yuan)揚(yang)聲(sheng)(sheng)器(qi)(qi)(qi)QSC K12 4只(zhi)(zhi)(zhi)；舞臺流動安裝擴(kuo)聲(sheng)(sheng)有(you)(you)(you)源(yuan)揚(yang)聲(sheng)(sheng)器(qi)(qi)(qi)QSC K12 4只(zhi)(zhi)(zhi)；一(yi)層觀眾席效(xiao)果(guo)聲(sheng)(sheng)有(you)(you)(you)源(yuan)揚(yang)聲(sheng)(sheng)器(qi)(qi)(qi)QSC K8 12只(zhi)(zhi)(zhi)；二層觀眾席效(xiao)果(guo)聲(sheng)(sheng)有(you)(you)(you)源(yuan)揚(yang)聲(sheng)(sheng)器(qi)(qi)(qi)QSC K8 8只(zhi)(zhi)(zhi)；控制室監聽(ting)有(you)(you)(you)源(yuan)揚(yang)聲(sheng)(sheng)器(qi)(qi)(qi)QSC K8 2只(zhi)(zhi)(zhi)。

方(fang)便簡單易操(cao)作的控制(zhi)處理系統所選用(yong)(yong)了英國最(zui)新開(kai)發的ALLEN&HEATH?GLD112緊(jin)湊(cou)的數字調音臺帶可(ke)擴展、使用(yong)(yong)方(fang)便快捷的模擬風格界(jie)面、具(ju)有可(ke)選擇的中文操(cao)作界(jie)面，遠程輸(shu)入/輸(shu)出；1臺ALLEN&HEATH?AR2412以及2臺ALLEN&HEATH?AR0804擴展接口箱；話筒設備(bei)采用(yong)(yong)了德國SENNHEISER、美國SHURE相關品(pin)牌(pai)話筒。

舞臺演(yan)出監督及內部通(tong)訊系統：高速(su)球(qiu)攝像機、攝像機控制器(qi)(qi)、嵌入式硬(ying)盤音視(shi)頻(pin)錄像機、貴賓(bin)室顯示器(qi)(qi)、視(shi)頻(pin)分(fen)配器(qi)(qi)、對講通(tong)訊系統等設備配置(zhi)完(wan)全(quan)滿足演(yan)出需要。

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(wu)臺(tai)燈(deng)具使(shi)用(yong)(yong)聚光(guang)(guang)(guang)(guang)燈(deng)MONON/魔龍(long)、聚光(guang)(guang)(guang)(guang)燈(deng)GTD/明道、LED染(ran)色燈(deng)、LED舞(wu)臺(tai)背景染(ran)色燈(deng)、圖案電(dian)腦燈(deng)GTD/明道、光(guang)(guang)(guang)(guang)束電(dian)腦燈(deng)GTD/明道、氙(xian)氣追光(guang)(guang)(guang)(guang)燈(deng)奧羅拉以及舞(wu)臺(tai)特效設備等。對(dui)于(yu)舞(wu)臺(tai)燈(deng)光(guang)(guang)(guang)(guang)設備供電(dian)采用(yong)(yong)了RGB-6i/96路(lu)、RGB-6i/60路(lu)智能控制直(zhi)通電(dian)源柜(ju)帶有(you)DMX-512接(jie)口(kou)(kou)、網(wang)接(jie)口(kou)(kou)，RJ-45標準(zhun)LAN以太網(wang)接(jie)口(kou)(kou)和(he)光(guang)(guang)(guang)(guang)纖接(jie)口(kou)(kou)，支持(chi)硅柜(ju)的網(wang)絡連接(jie)，并支持(chi)網(wang)絡協(xie)議(yi)。舞(wu)臺(tai)機械還滿足(zu)播(bo)放電(dian)影的需要配置(zhi)了弧形(xing)銀幕框吊(diao)架。