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id="omsg0ki" class="leftbox clearfix"><h1>常州華東師大音頻專業(yè) 貼心服務(wù) 上海懷嚴(yán)文化傳媒供應(yīng)</h1><div id="kwmuiua" class="proBig"><div id="s8gawui" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/huaiyan/637414038659155824/7147319.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ec82mua" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/huaiyan/637414038659155824/7147319.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="sgwm8a0" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>常州華東師大音頻專業(yè),音頻</p><p><span>***更新：</span>2021-02-04 09:16:56</p><p><span id="click" >瀏覽次數(shù)：7次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="8ysebnp" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海懷嚴(yán)文化傳媒有限公司</a></p><p><span>聯(lián)系人：</span>曹晨光</p><p><span>郵箱: </span>deforu@163.com</p><p><span>電話: </span>13611988611</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://www.oranshine.com</p><p><span>手機(jī): </span>021-64458098</p><p><span>地址: </span>宜山路508號3E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="d8xubdk" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="taxz38q" class="box"><p><p style="text-indent:25px">模擬音頻：一種與聲波的波形形成1：1的比例進(jìn)行傳播或記載的信號表示方法?？梢杂秒娮拥?、機(jī)械的、磁性的或光學(xué)的形式來表現(xiàn)?？梢圆蓸?，無需量化，在振幅范圍內(nèi)表現(xiàn)為無限連續(xù)的形態(tài)。數(shù)字音頻：指所有用數(shù)字技術(shù)進(jìn)行錄制、儲存和傳送音頻的手段。通過采樣、量化、編碼等，常州華東師大音頻專業(yè)，它記錄的數(shù)字，表現(xiàn)為不連續(xù)的形態(tài)。音頻帶寬：系統(tǒng)具有一致頻率響應(yīng)的頻率范圍，一般認(rèn)為是某個低頻到某個高頻的范圍，人的聽覺帶寬通常認(rèn)為在20HZ到20KHZ之間。音頻調(diào)音臺：控制和分配各種信號，包括信號的連接和走向，母線，常州華東師大音頻專業(yè)，常州華東師大音頻專業(yè)、輔助送出及其聲像位置調(diào)整，還可以處理音頻，做放大器、限幅器、壓縮器和均衡器。量化：那連續(xù)變化的信號振幅按一定間距設(shè)定的有限個不連續(xù)振幅電平，從而將連續(xù)信號轉(zhuǎn)變階梯狀的不連續(xù)信號波形的操作叫量化。音頻主要培養(yǎng)具備聲音藝術(shù)與音頻技術(shù)等多學(xué)科交叉方面的基本理論知識。常州華東師大音頻專業(yè)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="常州華東師大音頻專業(yè),音頻" src="https://tyunfile.71360.com/UploadFile/huaiyan/637414038659155824/7147319.png"></div><p style="text-indent:25px">MP3格式壓縮音樂的采樣頻率有很多種，可以用64Kbps或更低的采樣頻率節(jié)省空間，也可以用320Kbps的標(biāo)準(zhǔn)達(dá)到極高的音質(zhì)。我們用裝有Fraunhofer IIS Mpeg Lyaer3的 MP3編碼器（現(xiàn)在效果好的編碼器）MusicMatch Jukebox 6.0在128Kbps的頻率下編碼一首3分鐘的歌曲，得到2.82MB的MP3文件。采用缺省的CBR（固定采樣頻率）技術(shù)可以以固定的頻率采樣一首歌曲，而VBR（可變采樣頻率）則可以在音樂“忙”的時候加大采樣的頻率獲取更高的音質(zhì)，不過產(chǎn)生的MP3文件可能在某些播放器上無法播放。我們把VBR的級別設(shè)定成為與前面的CBR文件的音質(zhì)基本一樣，生成的VBR MP3文件為2.9MB。常州華東師大音頻專業(yè)聲音的聲學(xué)特性如音的高低等都可以用計算機(jī)硬盤文件的方式儲存下來。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="常州華東師大音頻專業(yè),音頻" src="https://tyunfile.71360.com/UploadFile/huaiyan/637414038167759356/6633536.png"></div><p style="text-indent:25px">我們注意一下身邊的CD片就會看到很多CD都有如：ADD、AAD、DDD等標(biāo)記。三個字母按順序各表示該片在音頻、編輯、成品三個過程中所使用的方法，是模擬(Analog)還是數(shù)字(Digital)。當(dāng)然A表示模擬，D表示數(shù)字。AAD就說明其音頻和編輯是用模擬方式的，而然后灌片是用數(shù)字方式的，這類唱片多是將過去錄制的音樂轉(zhuǎn)成CD片而不做任何修改。ADD則是有一個修改過程。許多古典音樂大師的演奏或指揮多錄制于模擬時代，我們聽到的CD是經(jīng)過修改后灌錄的，很多這類唱片都有標(biāo)記ADD。而DDD的唱片必然是較現(xiàn)代的音頻品。自然，CD片必然以D結(jié)尾，而磁帶可以姑且認(rèn)為是AAA，雖然好像并沒有這種說法。</p><p style="text-indent:25px">質(zhì)量的音頻師必須能夠根據(jù)自己對影視腳本的理解與感悟以及導(dǎo)演的創(chuàng)作意圖，經(jīng)過精心構(gòu)思，對影視作品的聲音進(jìn)行藝術(shù)創(chuàng)作，借助一定的技術(shù)手段對作品中的有聲語言、音樂編排和音響效果進(jìn)行采、錄、編等加工處理，使聲音在保證各個方面細(xì)致地表現(xiàn)作品主題并有效推動作品情節(jié)發(fā)展的同時，增強(qiáng)作品的藝術(shù)表現(xiàn)力和力。具有較高的藝術(shù)素質(zhì)和修養(yǎng)，具備深厚的音樂功底，掌握聲音（音響）設(shè)計、音頻節(jié)目制作、藝術(shù)處理的基本能力，熟知各種音頻設(shè)備，同時又掌握一定的音頻理論及技巧，能在廣播、電視、電影系統(tǒng)和文化藝術(shù)部門從事聲音（音響）設(shè)計、錄制的高級專門人才。雙軌立體聲音頻效果處理上采用自然效果，依靠聲場進(jìn)行加工，對聲場聲學(xué)條件要求高。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="常州華東師大音頻專業(yè),音頻" src="https://tyunfile.71360.com/UploadFile/huaiyan/637414038791821881/5616138.png"></div><p style="text-indent:25px">采樣：是一個以某一時間間隔迅速采集信號振幅的過程，速度越快聲音越逼真，采樣法則表明這一過程必須至少比音頻的2個周期時間稍快。信噪比：指在媒介基準(zhǔn)電平以下的媒介或傳輸路徑中的噪聲值。失真：指任何不需要的信號變化，噪聲除外，分線性失真和非線性失真，線性失真包括頻響和相位方面的誤差，表現(xiàn)為具有可經(jīng)過相反的等量信號處?？蛇€原的特征。非線性由于有新的頻率產(chǎn)生，通常不可還原。帶通濾波器：一種電子濾波器，用以使某一范圍的頻率通過，而范圍外的頻率被限制通過的設(shè)備，可以通過高通濾波和低通濾波組合實現(xiàn)。帶阻濾波器：用來限制某一范圍內(nèi)的頻率通過而范圍外的頻率則被通過的設(shè)備，常用于消除某一頻率的噪聲。音頻不同采樣率、頻率、通道數(shù)之間的變換和轉(zhuǎn)換。徐州上海師范大學(xué)音頻教材</p><p style="text-indent:25px">聲波可以在氣體中傳播，也可以在液體和固體中傳播，聲波又可成為彈性波。常州華東師大音頻專業(yè)</p><p style="text-indent:25px">壓縮器：一種特殊的使輸入電平和輸出電平變化相當(dāng)?shù)囊纛l放大器，通常用于將寬動態(tài)范圍的音頻信號范圍輸入到窄動態(tài)范圍的聲道中。壓縮擴(kuò)展：一種在音頻前壓縮信號，并在還音時精確互補(bǔ)地擴(kuò)展信號的系統(tǒng)，目的真實地還原信號。陷波器：當(dāng)較高的和較低的頻率同時通過音頻電路時，陷波器可使某個通常是可調(diào)的頻率受到抑zhi，陷波器主要用于消除音頻過程中產(chǎn)生的各種噪聲，如交流嗡聲和某些哨音。均衡器：用來對聲音進(jìn)行均衡調(diào)整的設(shè)備，可以產(chǎn)生固定的均衡量，可以彌補(bǔ)細(xì)微的頻率變化。均衡：指通過固定的或可調(diào)的設(shè)備來調(diào)節(jié)音頻的頻率響應(yīng)。濾波：去掉頻譜中的某些頻率，通常用于降低位于抑zhi頻率范圍內(nèi)不需要的聲音的影響，增強(qiáng)位于濾波器通頻帶內(nèi)需要的聲音，可以分高通、低通、帶通、帶阻和陷波器。常州華東師大音頻專業(yè)</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3158339.html</p></div></div></div></div></div><div id="gxpczbh" class="page-right twoColRt"><div id="g7bdfnk" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="rgd8qnu" class="recomPic likePro"><a href="http://www.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" 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