虛擬微課系統(tǒng)生產(chǎn)廠家深圳市中科致遠(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="導(dǎo)播切換臺(tái)同步信號(hào)發(fā)生器：同步信號(hào)發(fā)生器在導(dǎo)播切換臺(tái)中主要完成以下幾種功能:①為黑場(chǎng)發(fā)生器、彩底發(fā)生器等提供基準(zhǔn)信號(hào)。其中黑場(chǎng)和彩底信號(hào)可作為字幕、邊框著色或換幕等使用。②受演播中心的同步機(jī)控制并與之，同步鎖相。③在沒有演播中心同步機(jī)的系統(tǒng)"><meta name="keywords" content="虛擬微課系統(tǒng)生產(chǎn)廠家,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 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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>虛擬微課系統(tǒng)生產(chǎn)廠家,導(dǎo)播切換臺(tái)</p><p><span>***更新：</span>2020-12-03 03:13:11</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="k8z9rtu" 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="diifmof" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="noqneq8" class="box"><p><p style="text-indent:25px">導(dǎo)播切換臺(tái)同步信號(hào)發(fā)生器：同步信號(hào)發(fā)生器在導(dǎo)播切換臺(tái)中主要完成以下幾種功能:①為黑場(chǎng)發(fā)生器、彩底發(fā)生器等提供基準(zhǔn)信號(hào)。其中黑場(chǎng)和彩底信號(hào)可作為字幕、邊框著色或換幕等使用。②受演播中心的同步機(jī)控制并與之，同步鎖相。③在沒有演播中心同步機(jī)的系統(tǒng)中，通過黑場(chǎng)發(fā)生器產(chǎn)生的黑場(chǎng)信號(hào)，虛擬微課系統(tǒng)生產(chǎn)廠家，為信號(hào)源的同步機(jī)，虛擬微課系統(tǒng)生產(chǎn)廠家，虛擬微課系統(tǒng)生產(chǎn)廠家、時(shí)基校正器等提供基準(zhǔn)并與它們同步鎖相。有些導(dǎo)播切換臺(tái)沒有同步信號(hào)發(fā)生器，需要外接同步機(jī)才能工作。在數(shù)字切換臺(tái)中，同樣需要模擬切換臺(tái)上的同步信號(hào)發(fā)生器，這是因?yàn)樵跀?shù)字系統(tǒng)中仍然使用的模擬同步信號(hào)作為時(shí)間基準(zhǔn)。導(dǎo)播切換臺(tái)的節(jié)目總線有許多的按鈕。虛擬微課系統(tǒng)生產(chǎn)廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="虛擬微課系統(tǒng)生產(chǎn)廠家,導(dǎo)播切換臺(tái)" src="https://tyunfile.71360.com/UploadFile/zkzy321/637332973731181641/6706964.png"></div><p style="text-indent:25px">導(dǎo)播切換臺(tái)-劃像：劃像又稱為掃換、電子拉幕或分畫面特技，它是使一個(gè)畫面先以一定的形狀、大小出現(xiàn)于另一個(gè)畫面的某一部分，接著按此形狀使其面積不斷擴(kuò)大，完全取代另一畫面。也可以這樣說，劃像就是整個(gè)屏幕被A、B兩個(gè)畫面所分割，分割的形狀由特技波形發(fā)生器提供的波形來決定，而且兩個(gè)分畫面的相對(duì)面積可通過拉桿電位器控制。實(shí)現(xiàn)劃像特技的基本原理為實(shí)現(xiàn)劃像特技，可以將視頻信號(hào)A和B分別通過兩個(gè)門控放大器后再相加。這兩個(gè)門控放大器所加的門控電壓又稱拉幕電壓，它們的波形相同，極性相反，頻率是行頻或場(chǎng)頻的整數(shù)倍。韶關(guān)視頻切換臺(tái)導(dǎo)播切換臺(tái)的基本功在兩個(gè)視頻素材之間選擇基本轉(zhuǎn)換。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="虛擬微課系統(tǒng)生產(chǎn)廠家,導(dǎo)播切換臺(tái)" src="https://tyunfile.71360.com/UploadFile/zkzy321/637336069198339844/1709747.png"></div><p style="text-indent:25px">傳統(tǒng)的導(dǎo)播切換臺(tái)的每級(jí)均按照切、混、劃像、鍵等多功能設(shè)計(jì)，雖然具有一定的使用方便性，但并不能充分發(fā)揮它們的功能。實(shí)際使用時(shí)，經(jīng)常把某一級(jí)專做混合、劃像，其它兩級(jí)專做鍵控。這樣，一方面多功能的部分功能被浪費(fèi)，另一方面幾級(jí)導(dǎo)播切換臺(tái)還滿足不了日益增長(zhǎng)的節(jié)目制作需要。為此，許多切換臺(tái)采用了**的單元，一個(gè)單元能處理多層畫面，因此這種**的單元又叫做多層畫面放大器。**的單元的構(gòu)成，由前面所述的多級(jí)放大器組成，其中一級(jí)作混合、劃像使用，其它幾級(jí)作鍵控使用。這樣，一個(gè)**的元可以處理三到五層畫面，起到前面串接多級(jí)導(dǎo)播切換臺(tái)的作用。</p><p style="text-indent:25px">導(dǎo)播臺(tái)的A母線和B母線是特技變換的預(yù)選信號(hào)線排。兩個(gè)將要進(jìn)行特技變化的信號(hào)，可以分別在兩個(gè)線排上確定。任何線排只允許一個(gè)鍵被按下，也就是說線排上只能選擇一個(gè)信號(hào)源，如果按下另一個(gè)鍵，原先按下的鍵即刻彈起來。哪路信號(hào)輸出，取決于面板**的控制撥桿處在什么位置。由于直接切換是鏡頭瞬間過渡的形式，因此只需在A母線或B母線導(dǎo)通時(shí)，根據(jù)訊道監(jiān)視器顯示的畫面內(nèi)容即可按相應(yīng)的鍵實(shí)現(xiàn)切換。小型導(dǎo)播臺(tái)上還有五種特技方式可供采用：一是慢轉(zhuǎn)換方式;二是以垂直左右劃變方式;三是以水平線上下劃變方式;四和五是以邊角方塊圖案劃變的方式。導(dǎo)播切換臺(tái)的切又叫硬切，指一個(gè)畫面無過渡的變化到另一個(gè)畫面。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="虛擬微課系統(tǒng)生產(chǎn)廠家,導(dǎo)播切換臺(tái)" src="https://tyunfile.71360.com/UploadFile/zkzy321/637332973498632812/7820881.png"></div><p style="text-indent:25px">高清導(dǎo)播切換臺(tái)的應(yīng)用方案：網(wǎng)絡(luò)直播。系統(tǒng)直帶三種直播流“直播服務(wù)器”，可實(shí)現(xiàn)導(dǎo)播機(jī)直接直播，當(dāng)觀看直播用戶量大時(shí)，或要轉(zhuǎn)播到外網(wǎng)時(shí)，系統(tǒng)提供MMS、FMS流。人們所了解的‘網(wǎng)絡(luò)直播’比較大優(yōu)點(diǎn)就在于直播的自主性：**可控的音視頻采集，完全不同于轉(zhuǎn)播電視信號(hào)的單一（況且觀看效果不如電視觀看的流暢）收看。它可以為***公開會(huì)議、**聽證會(huì)、法庭庭審直播、公務(wù)員考試培訓(xùn)、產(chǎn)品發(fā)布會(huì)、企業(yè)年會(huì)、行業(yè)年會(huì)、展會(huì)直播等電視媒體難以直播的應(yīng)用進(jìn)行直播。導(dǎo)播切換臺(tái)特技切換在后期制作中經(jīng)常應(yīng)用。虛擬微課系統(tǒng)生產(chǎn)廠家</p><p style="text-indent:25px">導(dǎo)播切換臺(tái)的黑下是從一個(gè)正在播出的圖像變成黑場(chǎng)。虛擬微課系統(tǒng)生產(chǎn)廠家</p><p style="text-indent:25px">導(dǎo)播切換臺(tái)是電臺(tái)主持人的助手，幫助電臺(tái)主持人接聽聽眾電話，并選取電話接入直播間；幫助電臺(tái)主持人撥通嘉賓電話，并將電話接入直播間；幫助電臺(tái)主持人過濾掉和節(jié)目無關(guān)的電話、*擾電話、與國(guó) 家法律法規(guī)相違背的電話；幫助電臺(tái)主持人抽取短信平臺(tái)幸運(yùn)聽眾；幫助電臺(tái)主持人記錄聽眾電話；提醒電臺(tái)主持人電話接收和掛斷；幫助電臺(tái)主持人在節(jié)目出現(xiàn)問題時(shí)和技術(shù)部門聯(lián)系；幫助電臺(tái)主持人處理直播間外的其它事情。導(dǎo)播切換臺(tái)有專門的導(dǎo)播間，一般與直播間相鄰，能直接觀察直播間的一舉一動(dòng)。導(dǎo)播切換臺(tái)一般通過電子傳話器與主持人進(jìn)行溝通和聯(lián)系。導(dǎo)播切換臺(tái)是電臺(tái)主持人的必要助手。虛擬微課系統(tǒng)生產(chǎn)廠家</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/2242229.html</p></div></div></div></div></div><div id="dhtfryp" class="page-right twoColRt"><div id="gqikrd2" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="gkmjlsu" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="z2kum8c" class="recomPic likePro"><a 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