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警官學院(yuan)大講(jiang)堂(tang)是滿(man)足文藝演出、主題(ti)晚會(hui)、音(yin)樂會(hui)、召開會(hui)議等現場(chang)擴(kuo)聲綜合(he)性廳(ting)堂(tang)。本音(yin)響系(xi)統設計方(fang)案為各種擴(kuo)聲形式提供優(you)良的(de)音(yin)頻(pin)環境(jing)，產生(sheng)優(you)秀的(de)音(yin)質效果。

我司(si)經(jing)充分(fen)理解圖紙及相應要求(qiu)后，以(yi)全面滿足廳(ting)堂的(de)功能要求(qiu)為原則，在設計的(de)過程中(zhong)經(jing)過仔細(xi)的(de)考慮和分(fen)析，找到并形(xing)成了(le)一個適(shi)合警官學院大講(jiang)堂的(de)音響系統方(fang)案。

1、音響系統的需求定位與功能分析

根據警官學院大講堂實際使用中的功(gong)能需求(qiu)，在(zai)設計過程中對該系統作(zuo)如下基本定位：

！滿足文藝演出、主題晚會(hui)的擴(kuo)聲要求；

！?滿足召開(kai)會議的擴聲要求

！滿足音樂演奏的擴聲要(yao)求(qiu)

根據多功(gong)能廳的(de)使用需(xu)求(qiu)定(ding)位，我們確定(ding)了(le)本音(yin)響系統的(de)主要功(gong)能是：

1).??改善語(yu)言清晰(xi)度和音(yin)樂明(ming)晰(xi)度；

2).??提高節目(mu)源(yuan)的響度，擴展節目(mu)源(yuan)的動態(tai)；

3).??改進不(bu)同演出中的(de)聲平(ping)衡；

4).??具(ju)有良好的聲還原特性(xing)（即保真(zhen)度）；

5).??具(ju)有極佳的聲(sheng)像自然度（即聲(sheng)像一(yi)致性(xing)）；

6).??在(zai)無樂隊演奏時重放伴(ban)奏音樂；

7).??可將部分節目信號(hao)存儲和預置程序以簡化(hua)操作(zuo)；

2、音響系統的擴聲形式

根據相關要求(qiu)，并依(yi)據對當前國(guo)內外各種多(duo)功(gong)能(neng)廳(ting)堂(tang)(tang)音響(xiang)系(xi)統(tong)的(de)調查研(yan)究(jiu)，確定該廳(ting)堂(tang)(tang)擴(kuo)(kuo)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)系(xi)統(tong)采用左、中、右(you)三(san)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)道(dao)(dao)主擴(kuo)(kuo)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)與多(duo)點位(wei)補聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)相結合的(de)擴(kuo)(kuo)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)方式，觀眾廳(ting)左、中、右(you)三(san)個(ge)主擴(kuo)(kuo)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)道(dao)(dao)，每個(ge)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)道(dao)(dao)基本獨立覆(fu)蓋全(quan)場，在觀眾廳(ting)設置(zhi)多(duo)點位(wei)補聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)揚(yang)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)器(qi)，通過提高直達聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)與混(hun)響(xiang)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)能(neng)比，從而(er)提高語言清晰(xi)度，使得(de)整個(ge)音響(xiang)系(xi)統(tong)能(neng)夠兼(jian)顧左、右(you)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)道(dao)(dao)立體聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)，左、中、右(you)三(san)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)道(dao)(dao)立體聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)，單聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)道(dao)(dao)擴(kuo)(kuo)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)等多(duo)種擴(kuo)(kuo)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)形式。所有揚(yang)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)器(qi)均使用有源(yuan)一體化揚(yang)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)器(qi)，保證了功(gong)放(fang)與揚(yang)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)器(qi)間的(de)一致性。

舞臺音頻系統選型：

揚(yang)聲(sheng)器是音(yin)響系(xi)(xi)統中(zhong)(zhong)最(zui)(zui)重要的(de)(de)(de)組成部分。由于電(dian)子技術的(de)(de)(de)發展，聲(sheng)系(xi)(xi)統中(zhong)(zhong)電(dian)子設備的(de)(de)(de)頻率響應與相位響應上的(de)(de)(de)處理已達到很高水平，影響音(yin)響系(xi)(xi)統還原(yuan)性能的(de)(de)(de)主要瓶頸是換(huan)能器的(de)(de)(de)失(shi)真(zhen)，因(yin)此(ci)揚(yang)聲(sheng)器的(de)(de)(de)選(xuan)用是對最(zui)(zui)終還音(yin)質量影響最(zui)(zui)大、最(zui)(zui)有決定性的(de)(de)(de)一(yi)個(ge)環節。

本(ben)次揚(yang)聲(sheng)(sheng)(sheng)器系統的所(suo)有功能完全(quan)(quan)滿足使用的要(yao)(yao)求(qiu)，觀眾(zhong)廳設置左(zuo)中右立體聲(sheng)(sheng)(sheng)擴聲(sheng)(sheng)(sheng)和(he)多點(dian)位(wei)補聲(sheng)(sheng)(sheng)擴聲(sheng)(sheng)(sheng)系統。其中中央(yang)聲(sheng)(sheng)(sheng)道獨(du)立覆(fu)蓋全(quan)(quan)場觀眾(zhong)，左(zuo)右聲(sheng)(sheng)(sheng)道覆(fu)蓋全(quan)(quan)場觀眾(zhong)，均滿足并高(gao)于設計技術(shu)指標(biao)要(yao)(yao)求(qiu)。另外，完全(quan)(quan)按(an)照使用要(yao)(yao)求(qiu)配(pei)置了舞臺流動返送監聽揚(yang)聲(sheng)(sheng)(sheng)器和(he)固定返送監聽揚(yang)聲(sheng)(sheng)(sheng)器。

所選(xuan)用(yong)的(de)主擴聲(sheng)(sheng)(sheng)(sheng)(sheng)揚(yang)(yang)(yang)聲(sheng)(sheng)(sheng)(sheng)(sheng)器是美國(guo)QSC KLA12有(you)(you)(you)源(yuan)(yuan)(yuan)線陣列揚(yang)(yang)(yang)聲(sheng)(sheng)(sheng)(sheng)(sheng)器系統12只(zhi)(zhi)(zhi)；主擴有(you)(you)(you)源(yuan)(yuan)(yuan)低音揚(yang)(yang)(yang)聲(sheng)(sheng)(sheng)(sheng)(sheng)器QSC KW181 8只(zhi)(zhi)(zhi)；左右(you)聲(sheng)(sheng)(sheng)(sheng)(sheng)道降聲(sheng)(sheng)(sheng)(sheng)(sheng)像有(you)(you)(you)源(yuan)(yuan)(yuan)揚(yang)(yang)(yang)聲(sheng)(sheng)(sheng)(sheng)(sheng)器QSC KW152 4只(zhi)(zhi)(zhi)；舞(wu)臺(tai)固(gu)定(ding)安裝(zhuang)擴聲(sheng)(sheng)(sheng)(sheng)(sheng)有(you)(you)(you)源(yuan)(yuan)(yuan)揚(yang)(yang)(yang)聲(sheng)(sheng)(sheng)(sheng)(sheng)器QSC K12 4只(zhi)(zhi)(zhi)；舞(wu)臺(tai)流(liu)動安裝(zhuang)擴聲(sheng)(sheng)(sheng)(sheng)(sheng)有(you)(you)(you)源(yuan)(yuan)(yuan)揚(yang)(yang)(yang)聲(sheng)(sheng)(sheng)(sheng)(sheng)器QSC K12 4只(zhi)(zhi)(zhi)；一層觀眾(zhong)席效果聲(sheng)(sheng)(sheng)(sheng)(sheng)有(you)(you)(you)源(yuan)(yuan)(yuan)揚(yang)(yang)(yang)聲(sheng)(sheng)(sheng)(sheng)(sheng)器QSC K8 12只(zhi)(zhi)(zhi)；二層觀眾(zhong)席效果聲(sheng)(sheng)(sheng)(sheng)(sheng)有(you)(you)(you)源(yuan)(yuan)(yuan)揚(yang)(yang)(yang)聲(sheng)(sheng)(sheng)(sheng)(sheng)器QSC K8 8只(zhi)(zhi)(zhi)；控制室監聽有(you)(you)(you)源(yuan)(yuan)(yuan)揚(yang)(yang)(yang)聲(sheng)(sheng)(sheng)(sheng)(sheng)器QSC K8 2只(zhi)(zhi)(zhi)。

方(fang)便簡單易操作(zuo)的(de)控制處理系統所選(xuan)用了英國(guo)最(zui)新開發的(de)ALLEN&HEATH?GLD112緊(jin)湊(cou)的(de)數字(zi)調音臺(tai)帶可擴(kuo)展、使用方(fang)便快捷的(de)模擬風格界面、具有可選(xuan)擇的(de)中文操作(zuo)界面，遠程輸(shu)入/輸(shu)出；1臺(tai)ALLEN&HEATH?AR2412以及2臺(tai)ALLEN&HEATH?AR0804擴(kuo)展接口箱；話筒(tong)設備采用了德國(guo)SENNHEISER、美國(guo)SHURE相關(guan)品(pin)牌話筒(tong)。

舞臺(tai)演(yan)出(chu)監督及(ji)內部通訊系統(tong)：高速球攝(she)像(xiang)機、攝(she)像(xiang)機控(kong)制器(qi)、嵌入式硬(ying)盤(pan)音視頻錄像(xiang)機、貴賓室顯示器(qi)、視頻分配(pei)(pei)器(qi)、對(dui)講通訊系統(tong)等設備(bei)配(pei)(pei)置完全(quan)滿(man)足演(yan)出(chu)需(xu)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)(wu)臺燈(deng)(deng)(deng)具使用(yong)聚光(guang)(guang)燈(deng)(deng)(deng)MONON/魔龍、聚光(guang)(guang)燈(deng)(deng)(deng)GTD/明(ming)道(dao)、LED染色(se)燈(deng)(deng)(deng)、LED舞(wu)(wu)臺背景染色(se)燈(deng)(deng)(deng)、圖案電腦燈(deng)(deng)(deng)GTD/明(ming)道(dao)、光(guang)(guang)束電腦燈(deng)(deng)(deng)GTD/明(ming)道(dao)、氙氣追(zhui)光(guang)(guang)燈(deng)(deng)(deng)奧羅(luo)拉以(yi)及舞(wu)(wu)臺特效設(she)備等。對于舞(wu)(wu)臺燈(deng)(deng)(deng)光(guang)(guang)設(she)備供(gong)電采用(yong)了(le)RGB-6i/96路、RGB-6i/60路智(zhi)能控制直(zhi)通電源柜(ju)帶有DMX-512接口(kou)、網接口(kou)，RJ-45標(biao)準(zhun)LAN以(yi)太網接口(kou)和光(guang)(guang)纖接口(kou)，支(zhi)持硅柜(ju)的網絡連接，并支(zhi)持網絡協議。舞(wu)(wu)臺機械還滿足播放電影的需要配置了(le)弧(hu)形銀幕框吊架。