公共(gong)廣(guang)(guang)播(bo)系(xi)統(tong)(tong)為賓館(guan)、商廈(sha)、港口、機(ji)場、地鐵、學校提供背景(jing)(jing)(jing)音樂和(he)廣(guang)(guang)播(bo)節目。公共(gong)廣(guang)(guang)播(bo)系(xi)統(tong)(tong)還兼做(zuo)緊(jin)(jin)急(ji)廣(guang)(guang)播(bo)，可(ke)與(yu)消防報警系(xi)統(tong)(tong)聯動。公共(gong)廣(guang)(guang)播(bo)系(xi)統(tong)(tong)的(de)(de)控制(zhi)功(gong)(gong)能較多。如選區廣(guang)(guang)播(bo)與(yu)全(quan)呼(hu)廣(guang)(guang)播(bo)功(gong)(gong)能、強(qiang)制(zhi)功(gong)(gong)換(huan)(huan)功(gong)(gong)能和(he)優先廣(guang)(guang)播(bo)權功(gong)(gong)能等。揚聲(sheng)器負載多而分散、傳(chuan)輸(shu)線(xian)路長。為減少傳(chuan)輸(shu)線(xian)路損耗，一般都采用(yong)70V或100V定電壓高(gao)(gao)阻抗輸(shu)送。聲(sheng)壓要(yao)求不(bu)高(gao)(gao)，音質以中(zhong)音和(he)中(zhong)低音為主(zhu)。背景(jing)(jing)(jing)音樂簡稱BGM，是(shi)(shi) Back ground music 的(de)(de)縮寫(xie)，它的(de)(de)主(zhu)要(yao)作用(yong)是(shi)(shi)掩蓋噪聲(sheng)并創(chuang)造一種輕松和(he)諧的(de)(de)氣(qi)氛(fen)，聽的(de)(de)人若不(bu)專(zhuan)心聽，就不(bu)能辨別其聲(sheng)源位置，音量較小，是(shi)(shi)一種創(chuang)造輕松愉快(kuai)環境氣(qi)氛(fen)的(de)(de)音樂。因此，背景(jing)(jing)(jing)音樂的(de)(de)效果(guo)有(you)兩個，一是(shi)(shi)心理上(shang)掩蓋環境噪聲(sheng)，二是(shi)(shi)創(chuang)造與(yu)室內環境相適應(ying)的(de)(de)氣(qi)氛(fen)，它在賓館(guan)、酒(jiu)店、餐廳、商場、醫(yi)院、辦公樓等普遍的(de)(de)應(ying)用(yong)。應(ying)急(ji)廣(guang)(guang)播(bo)系(xi)統(tong)(tong)具備遠程控制(zhi)和(he)緊(jin)(jin)急(ji)廣(guang)(guang)播(bo)按鈕(niu)，方便運(yun)營(ying)人員對廣(guang)(guang)播(bo)頻道進(jin)行(xing)緊(jin)(jin)急(ji)切換(huan)(huan)和(he)調整。江西(xi)展廳廣(guang)(guang)播(bo)系(xi)統(tong)(tong)哪家好

音(yin)樂(le)(le)管(guan)(guan)理(li)器支持按區域(yu)(yu)切(qie)換(huan)和(he)(he)同(tong)(tong)步(bu)播(bo)(bo)放的(de)實(shi)現原理(li)：無線分(fen)區廣(guang)播(bo)(bo)系(xi)統(tong)的(de)音(yin)樂(le)(le)管(guan)(guan)理(li)器支持按區域(yu)(yu)切(qie)換(huan)和(he)(he)同(tong)(tong)步(bu)播(bo)(bo)放，是通過(guo)先將音(yin)樂(le)(le)文件(jian)按照不(bu)同(tong)(tong)的(de)區域(yu)(yu)進行分(fen)類，然后將這些(xie)文件(jian)上(shang)傳到(dao)音(yin)樂(le)(le)管(guan)(guan)理(li)器中。在(zai)音(yin)樂(le)(le)管(guan)(guan)理(li)器中，可以(yi)對不(bu)同(tong)(tong)區域(yu)(yu)的(de)音(yin)樂(le)(le)進行管(guan)(guan)理(li)和(he)(he)調整，包括音(yin)量、播(bo)(bo)放順序、播(bo)(bo)放時間等。當需(xu)要切(qie)換(huan)區域(yu)(yu)時，音(yin)樂(le)(le)管(guan)(guan)理(li)器會(hui)自動切(qie)換(huan)到(dao)對應的(de)音(yin)樂(le)(le)文件(jian)，并同(tong)(tong)步(bu)播(bo)(bo)放到(dao)各個區域(yu)(yu)的(de)音(yin)響設備(bei)(bei)上(shang)。這樣(yang)，無論是在(zai)商場、酒店(dian)、餐廳等不(bu)同(tong)(tong)的(de)場所，都可以(yi)實(shi)現按區域(yu)(yu)播(bo)(bo)放不(bu)同(tong)(tong)的(de)音(yin)樂(le)(le)，讓顧(gu)客感(gan)受(shou)到(dao)更加舒(shu)適和(he)(he)愉(yu)悅的(de)氛圍。廣(guang)西會(hui)議(yi)室廣(guang)播(bo)(bo)系(xi)統(tong)供應商防爆廣(guang)播(bo)(bo)系(xi)統(tong)具備(bei)(bei)防爆設計和(he)(he)安(an)全保護功能，確保設備(bei)(bei)在(zai)危險(xian)環境下的(de)安(an)全運(yun)行和(he)(he)廣(guang)播(bo)(bo)傳遞。

定(ding)向(xiang)性(xing)(xing)天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)的(de)(de)(de)(de)設(she)計(ji)與(yu)(yu)優化(hua)(hua)(hua)是(shi)廣播(bo)系(xi)統(tong)(tong)中(zhong)(zhong)的(de)(de)(de)(de)重要(yao)問題(ti)。在(zai)(zai)(zai)設(she)計(ji)定(ding)向(xiang)性(xing)(xing)天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)時，需要(yao)考慮多種(zhong)因(yin)素，如天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)的(de)(de)(de)(de)頻率響(xiang)應(ying)、輻射(she)圖(tu)(tu)、阻抗匹(pi)配(pei)(pei)(pei)等。這(zhe)些因(yin)素直接(jie)(jie)影響(xiang)天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)的(de)(de)(de)(de)性(xing)(xing)能(neng)(neng)和信(xin)號(hao)的(de)(de)(de)(de)傳(chuan)(chuan)輸質量。在(zai)(zai)(zai)定(ding)向(xiang)性(xing)(xing)天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)的(de)(de)(de)(de)設(she)計(ji)中(zhong)(zhong)，輻射(she)圖(tu)(tu)是(shi)一(yi)個重要(yao)的(de)(de)(de)(de)參數。輻射(she)圖(tu)(tu)描述了(le)天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)在(zai)(zai)(zai)不(bu)同方向(xiang)上的(de)(de)(de)(de)輻射(she)強度分(fen)布，是(shi)評價天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)性(xing)(xing)能(neng)(neng)的(de)(de)(de)(de)重要(yao)指(zhi)標(biao)。在(zai)(zai)(zai)廣播(bo)系(xi)統(tong)(tong)中(zhong)(zhong)，需要(yao)將天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)的(de)(de)(de)(de)輻射(she)圖(tu)(tu)設(she)計(ji)為向(xiang)廣播(bo)區域輻射(she)的(de)(de)(de)(de)形狀，從(cong)而(er)確(que)保(bao)信(xin)號(hao)覆(fu)蓋范(fan)圍廣闊且穩定(ding)。除了(le)輻射(she)圖(tu)(tu)外，天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)的(de)(de)(de)(de)阻抗匹(pi)配(pei)(pei)(pei)也是(shi)一(yi)個重要(yao)的(de)(de)(de)(de)問題(ti)。阻抗匹(pi)配(pei)(pei)(pei)是(shi)指(zhi)天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)的(de)(de)(de)(de)輸入阻抗與(yu)(yu)傳(chuan)(chuan)輸線(xian)(xian)(xian)(xian)的(de)(de)(de)(de)阻抗相匹(pi)配(pei)(pei)(pei)，從(cong)而(er)至大化(hua)(hua)(hua)信(xin)號(hao)的(de)(de)(de)(de)傳(chuan)(chuan)輸效率。在(zai)(zai)(zai)廣播(bo)系(xi)統(tong)(tong)中(zhong)(zhong)，天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)的(de)(de)(de)(de)阻抗匹(pi)配(pei)(pei)(pei)需要(yao)與(yu)(yu)發射(she)機(ji)和接(jie)(jie)收機(ji)的(de)(de)(de)(de)阻抗匹(pi)配(pei)(pei)(pei)相一(yi)致，從(cong)而(er)確(que)保(bao)信(xin)號(hao)的(de)(de)(de)(de)傳(chuan)(chuan)輸質量。在(zai)(zai)(zai)定(ding)向(xiang)性(xing)(xing)天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)的(de)(de)(de)(de)優化(hua)(hua)(hua)中(zhong)(zhong)，需要(yao)考慮多種(zhong)因(yin)素，如天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)的(de)(de)(de)(de)材料、結構、尺寸等。這(zhe)些因(yin)素直接(jie)(jie)影響(xiang)天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)的(de)(de)(de)(de)性(xing)(xing)能(neng)(neng)和信(xin)號(hao)的(de)(de)(de)(de)傳(chuan)(chuan)輸質量。在(zai)(zai)(zai)廣播(bo)系(xi)統(tong)(tong)中(zhong)(zhong)，需要(yao)選(xuan)擇合適的(de)(de)(de)(de)天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)材料和結構，從(cong)而(er)至大化(hua)(hua)(hua)天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)的(de)(de)(de)(de)性(xing)(xing)能(neng)(neng)和信(xin)號(hao)的(de)(de)(de)(de)傳(chuan)(chuan)輸質量。

廣(guang)(guang)播(bo)(bo)系統：廣(guang)(guang)播(bo)(bo)系統簡稱DMB，是(shi)(shi)DigitalMultimediaBroadcasting的(de)(de)(de)英(ying)文縮寫(xie)，是(shi)(shi)通(tong)信(xin)和(he)(he)廣(guang)(guang)播(bo)(bo)相融合的(de)(de)(de)新(xin)概念多(duo)媒(mei)體(ti)(ti)移(yi)動廣(guang)(guang)播(bo)(bo)服(fu)(fu)務(wu)。并被稱為第3代無(wu)線電(dian)廣(guang)(guang)播(bo)(bo)。該項(xiang)技術除了支持傳統的(de)(de)(de)音(yin)頻(pin)(pin)廣(guang)(guang)播(bo)(bo)之(zhi)外，還將可以通(tong)過(guo)MPEG-4、H.264和(he)(he)MPEG-2、AAC+等(deng)多(duo)種方(fang)式，把交(jiao)通(tong)信(xin)息(xi)和(he)(he)新(xin)聞等(deng)多(duo)種多(duo)媒(mei)體(ti)(ti)信(xin)息(xi)傳輸到手機(ji)上(shang)，提供高質(zhi)量(liang)(liang)的(de)(de)(de)音(yin)質(zhi)和(he)(he)多(duo)樣化(hua)的(de)(de)(de)數(shu)據(ju)服(fu)(fu)務(wu)。而且其采用與(yu)移(yi)動電(dian)話一致的(de)(de)(de)CDM(CodeDivisionMultiplexing)技術，特別適(shi)合移(yi)動接收環境，能夠更(geng)好地應對(dui)移(yi)動接收環境中信(xin)號質(zhi)量(liang)(liang)下降的(de)(de)(de)多(duo)路徑干擾問題。廣(guang)(guang)播(bo)(bo)系統的(de)(de)(de)音(yin)頻(pin)(pin)編碼(ma)器支持多(duo)種音(yin)頻(pin)(pin)編碼(ma)格式，實現更(geng)高效的(de)(de)(de)音(yin)頻(pin)(pin)數(shu)據(ju)傳輸和(he)(he)存儲。

隨著(zhu)數字化(hua)(hua)技(ji)(ji)術(shu)(shu)(shu)的(de)不斷發(fa)展，廣(guang)(guang)播(bo)(bo)(bo)(bo)行業也(ye)在不斷變革。調(diao)頻(pin)(pin)廣(guang)(guang)播(bo)(bo)(bo)(bo)技(ji)(ji)術(shu)(shu)(shu)作為一種(zhong)傳(chuan)統的(de)模擬(ni)傳(chuan)輸(shu)(shu)技(ji)(ji)術(shu)(shu)(shu)，也(ye)需要不斷升級和改進。未來，調(diao)頻(pin)(pin)廣(guang)(guang)播(bo)(bo)(bo)(bo)技(ji)(ji)術(shu)(shu)(shu)將(jiang)(jiang)會(hui)(hui)更(geng)加注重數字化(hua)(hua)、網絡(luo)化(hua)(hua)和智(zhi)能(neng)化(hua)(hua)的(de)發(fa)展。數字化(hua)(hua)技(ji)(ji)術(shu)(shu)(shu)的(de)應用(yong)將(jiang)(jiang)會(hui)(hui)使得(de)廣(guang)(guang)播(bo)(bo)(bo)(bo)系(xi)統的(de)音質更(geng)加清晰、穩定，網絡(luo)化(hua)(hua)技(ji)(ji)術(shu)(shu)(shu)的(de)應用(yong)將(jiang)(jiang)會(hui)(hui)使得(de)廣(guang)(guang)播(bo)(bo)(bo)(bo)節目(mu)的(de)傳(chuan)輸(shu)(shu)更(geng)加便捷、靈活，智(zhi)能(neng)化(hua)(hua)技(ji)(ji)術(shu)(shu)(shu)的(de)應用(yong)將(jiang)(jiang)會(hui)(hui)使得(de)廣(guang)(guang)播(bo)(bo)(bo)(bo)系(xi)統的(de)管理更(geng)加高效、智(zhi)能(neng)。此(ci)外，隨著(zhu)5G技(ji)(ji)術(shu)(shu)(shu)的(de)普(pu)及，調(diao)頻(pin)(pin)廣(guang)(guang)播(bo)(bo)(bo)(bo)技(ji)(ji)術(shu)(shu)(shu)還(huan)將(jiang)(jiang)會(hui)(hui)與(yu)5G技(ji)(ji)術(shu)(shu)(shu)相結合，實(shi)現更(geng)加高速、穩定的(de)廣(guang)(guang)播(bo)(bo)(bo)(bo)傳(chuan)輸(shu)(shu)，為聽(ting)眾(zhong)提供更(geng)加優良的(de)收(shou)聽(ting)體驗。廣(guang)(guang)播(bo)(bo)(bo)(bo)系(xi)統支持遠(yuan)程采訪和電(dian)話連(lian)線(xian)功能(neng)，實(shi)現實(shi)時互動和聽(ting)眾(zhong)參與(yu)。深圳(zhen)壁掛(gua)式廣(guang)(guang)播(bo)(bo)(bo)(bo)系(xi)統制造商

廣(guang)播(bo)系統(tong)的(de)收音機設備(bei)具(ju)備(bei)自動搜索和頻(pin)道(dao)(dao)存儲功能(neng)，方便用戶快(kuai)速找到喜(xi)愛的(de)頻(pin)道(dao)(dao)。江西展廳(ting)廣(guang)播(bo)系統(tong)哪(na)家好(hao)

應(ying)急(ji)(ji)廣(guang)播(bo)(bo)系(xi)統(tong)是(shi)一(yi)種(zhong)重(zhong)要(yao)的(de)(de)(de)公共安全設(she)施(shi)，其(qi)遠(yuan)程(cheng)控制功(gong)能是(shi)保(bao)障(zhang)(zhang)廣(guang)播(bo)(bo)系(xi)統(tong)正常運行(xing)的(de)(de)(de)重(zhong)要(yao)手段(duan)之一(yi)。遠(yuan)程(cheng)控制功(gong)能可以(yi)通過(guo)(guo)網絡連接實現(xian)(xian)，運營人員可以(yi)通過(guo)(guo)遠(yuan)程(cheng)控制軟件(jian)對(dui)廣(guang)播(bo)(bo)系(xi)統(tong)進行(xing)實時(shi)監(jian)控和(he)(he)控制。遠(yuan)程(cheng)控制功(gong)能還可以(yi)實現(xian)(xian)對(dui)廣(guang)播(bo)(bo)系(xi)統(tong)的(de)(de)(de)遠(yuan)程(cheng)升級和(he)(he)維護(hu)，保(bao)證廣(guang)播(bo)(bo)系(xi)統(tong)的(de)(de)(de)穩(wen)定性和(he)(he)可靠性。此外，遠(yuan)程(cheng)控制功(gong)能還可以(yi)實現(xian)(xian)對(dui)廣(guang)播(bo)(bo)系(xi)統(tong)的(de)(de)(de)遠(yuan)程(cheng)故(gu)障(zhang)(zhang)排除，提高廣(guang)播(bo)(bo)系(xi)統(tong)的(de)(de)(de)故(gu)障(zhang)(zhang)處(chu)理(li)效率和(he)(he)準確性。應(ying)急(ji)(ji)廣(guang)播(bo)(bo)系(xi)統(tong)的(de)(de)(de)緊(jin)急(ji)(ji)廣(guang)播(bo)(bo)按(an)鈕功(gong)能是(shi)一(yi)種(zhong)重(zhong)要(yao)的(de)(de)(de)應(ying)急(ji)(ji)處(chu)理(li)手段(duan)，可以(yi)在緊(jin)急(ji)(ji)情(qing)況下(xia)快速切換廣(guang)播(bo)(bo)頻道(dao)，向公眾(zhong)發布緊(jin)急(ji)(ji)信(xin)息。江西展廳廣(guang)播(bo)(bo)系(xi)統(tong)哪家好

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