云臺(tái)攝像機(jī)多少錢深圳市中科致遠(yuǎn)供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="打包切換臺(tái)視頻開關(guān)的特點(diǎn)：視頻開關(guān)是一種直流控制的電子開關(guān)，但又有別于普通的電子開關(guān)，云臺(tái)攝像機(jī)多少錢，其特點(diǎn)有以下幾點(diǎn):(1)開關(guān)特性好。導(dǎo)通時(shí)頻帶足夠?qū)?對(duì)于模擬視頻信號(hào)，要求開關(guān)的帶寬為6MHz)、衰減小、線性好，能夠無(wú)畸變地傳送視頻"><meta name="keywords" content="云臺(tái)攝像機(jī)多少錢,導(dǎo)播切換臺(tái)"><link rel="canonical" href="http://m.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" 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src="https://tyunfile.71360.com/UploadFile/zkzy321/637332973757949219/6188531.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="flbdrbb" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zkzy321/637332973757949219/6188531.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="xnlfl1v" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>云臺(tái)攝像機(jī)多少錢,導(dǎo)播切換臺(tái)</p><p><span>***更新：</span>2020-11-07 06:16:12</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="bft7l99" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市中科致遠(yuǎn)數(shù)字技術(shù)有限公司</a></p><p><span>聯(lián)系人：</span>彭先生</p><p><span>郵箱: </span>SZKCE@126.COM</p><p><span>電話: </span>13267148828</p><p><span>傳真: </span>0755_66632010</p><p><span>網(wǎng)址: </span>https://www.yuanvideo.com</p><p><span>手機(jī): </span>0755-66632010</p><p><span>地址: </span>深圳市寶安區(qū)西鄉(xiāng)街道寶民二路一號(hào)浩泰大廈802室 </p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="r7nfjfp" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="jfxtrtb" class="box"><p><p style="text-indent:25px">打包切換臺(tái)視頻開關(guān)的特點(diǎn)：視頻開關(guān)是一種直流控制的電子開關(guān)，但又有別于普通的電子開關(guān)，云臺(tái)攝像機(jī)多少錢，其特點(diǎn)有以下幾點(diǎn):(1)開關(guān)特性好。導(dǎo)通時(shí)頻帶足夠?qū)?對(duì)于模擬視頻信號(hào)，要求開關(guān)的帶寬為6MHz)、衰減小、線性好，能夠無(wú)畸變地傳送視頻信號(hào);當(dāng)斷開時(shí)，泄漏要小。(2)輸入阻抗高，云臺(tái)攝像機(jī)多少錢，輸出阻抗低，云臺(tái)攝像機(jī)多少錢。(3)輸出與輸入信號(hào)之間沒(méi)有直流電平的跳變。(模擬視頻開關(guān)要求)(4)開關(guān)速度快。視頻開關(guān)應(yīng)能夠以極為快速的速度進(jìn)行切換，切換過(guò)渡過(guò)程以微秒級(jí)計(jì)算。為了能正確切換，在進(jìn)入視頻開關(guān)之前也需要對(duì)數(shù)字視頻信號(hào)進(jìn)行相應(yīng)的處理。導(dǎo)播切換臺(tái)的每個(gè)按鈕表示一個(gè)不同的視頻輸入。云臺(tái)攝像機(jī)多少錢</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云臺(tái)攝像機(jī)多少錢,導(dǎo)播切換臺(tái)" src="https://tyunfile.71360.com/UploadFile/zkzy321/637332973757949219/6188531.png"></div><p style="text-indent:25px">在電視導(dǎo)播這種類型的拍攝中，各臺(tái)攝像機(jī)都不掛帶。各路視頻信號(hào)通過(guò)信號(hào)線傳輸?shù)揭粋€(gè)被稱為“導(dǎo)播切換臺(tái)”的設(shè)備上。由“電視節(jié)目制作人員”操作“導(dǎo)播切換臺(tái)”根據(jù)“電視表現(xiàn)規(guī)則”從多路信號(hào)中選擇一路輸出到錄像機(jī)。這樣拍攝完成后，也就完成了電視節(jié)目的初編。在多訊號(hào)導(dǎo)播過(guò)程中，對(duì)于不同鏡頭、不同機(jī)位的選擇，也決定了影視作品的畫面呈現(xiàn)度的表現(xiàn)力。這種現(xiàn)場(chǎng)切換工作就是“導(dǎo)播”，這個(gè)進(jìn)行選擇信號(hào)的“電視節(jié)目制作人員”通常也被稱為“導(dǎo)播”。導(dǎo)播的責(zé)任是指揮“攝像師”進(jìn)行拍攝，并進(jìn)行現(xiàn)場(chǎng)切換。東莞商務(wù)演出導(dǎo)播設(shè)備導(dǎo)播切換臺(tái)實(shí)際是一個(gè)電子開關(guān)組合。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云臺(tái)攝像機(jī)多少錢,導(dǎo)播切換臺(tái)" src="https://tyunfile.71360.com/UploadFile/zkzy321/637332973814140625/5497518.png"></div><p style="text-indent:25px">導(dǎo)播切換臺(tái)-下游鍵：下游鍵處于導(dǎo)播切換臺(tái)的一級(jí)，主要是利用鍵控技術(shù)進(jìn)行圖形和字幕的疊加，一般不是對(duì)輸入的兩路視頻信號(hào)進(jìn)行特技處理。下游鍵本身也是一個(gè)混合/效果放大器，只是控制門控放大器的門控電壓不與特技波形發(fā)生器相連接，因此不具備劃像功能。它主要的作用有以下幾點(diǎn):(1)利用混合特技換幕，在輸出圖像信號(hào)中淡入黑場(chǎng)(或彩場(chǎng))信號(hào);(2)利用快切或混合特技在節(jié)目圖像和預(yù)監(jiān)圖像之間作快切或混合過(guò)渡;(3)利用鍵控特技作圖形或字幕的疊加，如疊加臺(tái)標(biāo)、時(shí)鐘、標(biāo)題或解說(shuō)詞等。</p><p style="text-indent:25px">導(dǎo)播切換臺(tái)-鍵信號(hào)：鍵信號(hào)應(yīng)該被看作一個(gè)視頻信號(hào)，并且包含有與它所處理的視頻信號(hào)相同的所有信息(復(fù)合同步信號(hào)、復(fù)合消隱信號(hào)和色同步信號(hào)) ;黑電平表示全透明，白電平表示不透明，黑和白之間的值表示部分透明，電平級(jí)差與所處理的視頻信號(hào)的電平級(jí)差相同。鍵信號(hào)的色度分量應(yīng)該置0。數(shù)字鍵信號(hào)的取樣頻率應(yīng)該與ITU-R601標(biāo)準(zhǔn)中亮度信號(hào)的取樣頻率相同，且電平的量化級(jí)數(shù)也應(yīng)該與亮度信號(hào)-樣，8比特量化時(shí)在16~235級(jí)之間，其傳輸接口應(yīng)該像ITU-R BT.656標(biāo)準(zhǔn)中的亮度信號(hào)一樣并行或串行傳輸，無(wú)用的色差信號(hào)置為消隱電平級(jí)(128級(jí)， 8比特量化時(shí))。導(dǎo)播切換臺(tái)的慢切換可分為X切換和V切換。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云臺(tái)攝像機(jī)多少錢,導(dǎo)播切換臺(tái)" src="https://tyunfile.71360.com/UploadFile/zkzy321/637332973625849609/3706579.png"></div><p style="text-indent:25px">彩底信號(hào)發(fā)生器用于劃像特技時(shí)的邊框著色、在下游鍵中進(jìn)行的換幕。另外，在利用外鍵特技將彩色字幕或圖形嵌入背景時(shí)彩底信號(hào)發(fā)生器可提供彩色背景。彩底信號(hào)發(fā)生器產(chǎn)生的彩色信號(hào)其色調(diào)、飽和度均可任意調(diào)整。提示電路是為節(jié)目制作、播出系統(tǒng)的完善性而設(shè)立的輔助電路，與導(dǎo)播切換臺(tái)本身的特性無(wú)關(guān)。導(dǎo)播切換臺(tái)有多路信號(hào)源，當(dāng)操作人員按下輸入矩陣的按鍵，選擇出輸入信號(hào)時(shí)，該電路與之聯(lián)動(dòng)，產(chǎn)生提示信號(hào)，一方面點(diǎn)亮信號(hào)源監(jiān)視器下的提示燈，提示操作人員參與制作的為哪幾幅圖像，另一方面通過(guò)提示系統(tǒng)點(diǎn)亮攝像機(jī)的提示燈，提示攝像師該路信號(hào)被選用，操作需細(xì)致。導(dǎo)播切換臺(tái)的黑起是從黑場(chǎng)變成一個(gè)圖像。東莞商務(wù)演出導(dǎo)播設(shè)備</p><p style="text-indent:25px">導(dǎo)播切換臺(tái)的A母線和B母線是特技變換的預(yù)選信號(hào)線排。云臺(tái)攝像機(jī)多少錢</p><p style="text-indent:25px">導(dǎo)播切換臺(tái)能以某種方式從兩種或更多種節(jié)目源中選出一路或多路信號(hào)送出，實(shí)現(xiàn)節(jié)目多樣化，是一種可達(dá)到一定藝術(shù)效果的電視節(jié)目制作設(shè)備。該系統(tǒng)設(shè)備應(yīng)用于電視信號(hào)播出或節(jié)目后期制作。在電視中心，需要從多路節(jié)目源選出所需的信號(hào)進(jìn)行播出;在后期節(jié)目制作中，為加強(qiáng)藝術(shù)效果，也需要從不同的節(jié)目源中選擇-路或多路實(shí)施組合輸出。要完成這些功能，必須使用導(dǎo)播切換臺(tái)。導(dǎo)播切換臺(tái)同時(shí)還用于技術(shù)人負(fù)調(diào)整和監(jiān)測(cè)電視中心設(shè)備。由于導(dǎo)播切換臺(tái)能選擇輸出各路信號(hào)，技術(shù)人員可以隨時(shí)監(jiān)測(cè)并調(diào)整任一路或整個(gè)視頻通道中某些關(guān)鍵部位的信號(hào)質(zhì)量;發(fā)生故障時(shí)，便于探明故障所在部位，以便及時(shí)排除。云臺(tái)攝像機(jī)多少錢</p><p style="text-indent:25px">深圳市中科致遠(yuǎn)數(shù)字技術(shù)有限公司是一家包含：音視頻采集卡/視頻編碼器/高清攝像機(jī)/視頻轉(zhuǎn)換器/錄播系統(tǒng)/導(dǎo)播切換臺(tái)/虛擬演播等硬件設(shè)備，并在教育錄播、導(dǎo)播系統(tǒng)、虛擬演播室、網(wǎng)絡(luò)直播系統(tǒng)、法院庭審直播等方面推出了比較成熟的軟件及系統(tǒng)解決方案。的公司，是一家集研發(fā)、設(shè)計(jì)、生產(chǎn)和銷售為一體的專業(yè)化公司。中科致遠(yuǎn)擁有一支經(jīng)驗(yàn)豐富、技術(shù)創(chuàng)新的專業(yè)研發(fā)團(tuán)隊(duì)，以高度的專注和執(zhí)著為客戶提供采集卡，視頻編碼器，直播設(shè)備，導(dǎo)播切換臺(tái)。中科致遠(yuǎn)繼續(xù)堅(jiān)定不移地走高質(zhì)量發(fā)展道路，既要實(shí)現(xiàn)基本面穩(wěn)定增長(zhǎng)，又要聚焦關(guān)鍵領(lǐng)域，實(shí)現(xiàn)轉(zhuǎn)型再突破。中科致遠(yuǎn)創(chuàng)始人彭貴濤，始終關(guān)注客戶，創(chuàng)新科技，竭誠(chéng)為客戶提供良好的服務(wù)。</p></p><br /><p>文章來(lái)源地址: http://m.cdcfah.com/cp/1885303.html</p></div></div></div></div></div><div id="1n5xnx7" class="page-right twoColRt"><div id="xzjjpt1" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="rtlhvrf" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/814588.html"><div><img 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