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class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="uxtkf8o" 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>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>常州網(wǎng)課音頻專業(yè),音頻</p><p><span>最后更新：</span>2021-01-17 01:11:30</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="vijvbcy" 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(hào)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="n348tpq" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="3bh3a8w" class="box"><p><p style="text-indent:25px">MP3格式誕生于八十年代的德國(guó)，所謂的MP3也就是指的是MPEG標(biāo)準(zhǔn)中的音頻部分，常州網(wǎng)課音頻專業(yè)，也就是MPEG音頻層。根據(jù)壓縮質(zhì)量和編碼處理的不同分為3層，分別對(duì)應(yīng)“*.mp1"/“*.mp2”/“*.mp3”這3種聲音文件。需要提醒大家注意的地方是：MPEG音頻文件的壓縮是一種有損壓縮，MPEG3音頻編碼具有10：1~12：1的高壓縮率，同時(shí)基本保持低音頻部分不失真，但是犧牲了聲音文件中12KHz到16KHz高音頻這部分的質(zhì)量來(lái)?yè)Q取文件的尺寸，相同長(zhǎng)度的音樂(lè)文件，用*.mp3格式來(lái)儲(chǔ)存，一般只有*.wav文件的1/10，而音質(zhì)要次于CD格式或WAV格式的聲音文件。由于其文件尺寸小，音質(zhì)好；所以在它問(wèn)世之初還沒(méi)有什么別的音頻格式可以與之匹敵，因而為*.mp3格式的發(fā)展提供了良好的條件。直到現(xiàn)在，這種格式還是風(fēng)靡一時(shí)，作為主流音頻格式的地位難以被撼動(dòng)。但是樹(shù)大招風(fēng)，常州網(wǎng)課音頻專業(yè)，常州網(wǎng)課音頻專業(yè)，MP3音樂(lè)的版權(quán)問(wèn)題也一直是找不到辦法解決，因?yàn)镸P3沒(méi)有版權(quán)保護(hù)技術(shù)，說(shuō)白了也就是誰(shuí)都可以用。拾音器由聲學(xué)系統(tǒng)、機(jī)械系統(tǒng)和電學(xué)系統(tǒng)三部分組成。常州網(wǎng)課音頻專業(yè)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="常州網(wǎng)課音頻專業(yè),音頻" src="https://tyunfile.71360.com/UploadFile/huaiyan/637414038435708517/1254231.png"></div><p style="text-indent:25px">采樣：是一個(gè)以某一時(shí)間間隔迅速采集信號(hào)振幅的過(guò)程，速度越快聲音越逼真，采樣法則表明這一過(guò)程必須至少比音頻的2個(gè)周期時(shí)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(hào)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(guò)相反的等量信號(hào)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(guò)，而范圍外的頻率被限制通過(guò)的設(shè)備，可以通過(guò)高通濾波和低通濾波組合實(shí)現(xiàn)。帶阻濾波器：用來(lái)限制某一范圍內(nèi)的頻率通過(guò)而范圍外的頻率則被通過(guò)的設(shè)備，常用于消除某一頻率的噪聲。南京藝術(shù)學(xué)院音頻經(jīng)驗(yàn)豐富音頻一詞已用作一般性描述音頻范圍內(nèi)和聲音有關(guān)的設(shè)備及其作用。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="常州網(wǎng)課音頻專業(yè),音頻" src="https://tyunfile.71360.com/UploadFile/huaiyan/637414038631899944/1503649.png"></div><p style="text-indent:25px">音頻是個(gè)專業(yè)術(shù)語(yǔ)，音頻一詞已用作一般性描述音頻范圍內(nèi)和聲音有關(guān)的設(shè)備及其作用。人類能夠聽(tīng)到的所有聲音都稱之為音頻，它可能包括噪音等。聲音被錄制下來(lái)以后，無(wú)論是說(shuō)話聲、歌聲、樂(lè)器都可以通過(guò)數(shù)字音樂(lè)軟件處理，或是把它制作成CD，這時(shí)候所有的聲音沒(méi)有改變，因?yàn)镃D本來(lái)就是音頻文件的一種類型。而音頻只是儲(chǔ)存在計(jì)算機(jī)里的聲音。如果有計(jì)算機(jī)再加上相應(yīng)的音頻卡——就是我們經(jīng)常說(shuō)的聲卡，我們可以把所有的聲音錄制下來(lái)，聲音的聲學(xué)特性如音的高低等都可以用計(jì)算機(jī)硬盤文件的方式儲(chǔ)存下來(lái)。</p><p style="text-indent:25px">音頻藝術(shù)專業(yè)培養(yǎng)的學(xué)生要求具有較高的藝術(shù)素質(zhì)和修養(yǎng)，具備深厚的音樂(lè)功底，熟知各種音頻設(shè)備，同時(shí)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(jì)、錄制的高級(jí)專門人才。音頻直觀的，讓人們便于理解的概念就是把自然界中存在的和人們?yōu)榱四撤N需要?jiǎng)?chuàng)造的音響記錄下來(lái)。該專業(yè)對(duì)聲音記錄及處理的質(zhì)量要求很高，大家聽(tīng)到的CD，電視聲，廣播聲，等等，都由該專業(yè)人員經(jīng)過(guò)一系列漫長(zhǎng)的過(guò)程，將聲音記錄，混合等等的處理后，再由各種人們需要使用的電器的揚(yáng)聲器，播放出來(lái)。一個(gè)聲源的信號(hào)的不連續(xù)反復(fù)，與混響不同在于其聲音間隔更大，大于50-80毫秒。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="常州網(wǎng)課音頻專業(yè),音頻" src="https://tyunfile.71360.com/UploadFile/huaiyan/637414038372739833/7145334.png"></div><p style="text-indent:25px">影視作品中聲音和畫(huà)面的關(guān)系：聲音在影視藝術(shù)作品中已經(jīng)有著和畫(huà)面同等重要的地位了，有時(shí)甚至還會(huì)超過(guò)畫(huà)面的重要性成為影視作品中重要的元素。電影聲、畫(huà)之關(guān)系，越來(lái)越出現(xiàn)變化無(wú)窮的境界，新的聲畫(huà)語(yǔ)言組合方式也因而不斷被電影藝術(shù)家們推出。影視藝術(shù)作品中聲音和畫(huà)面的關(guān)系主要有三種：1畫(huà)面占主要地位，聲音烘托畫(huà)面。2聲音占主要地位，畫(huà)面烘托聲音（音樂(lè)電視、音樂(lè)題材的影片）。3聲音與畫(huà)面同樣重要，誰(shuí)也離不開(kāi)誰(shuí)。影視藝術(shù)作品制作時(shí)賦予畫(huà)面與聲音的關(guān)系大致也分三種：1聲畫(huà)同步。2聲畫(huà)對(duì)位。3聲畫(huà)分立。在聲畫(huà)分立之時(shí)，聲音一般不會(huì)來(lái)自畫(huà)面之中，而以畫(huà)外形式出現(xiàn)，但在總體情感、情緒上，又有一種相互映照的關(guān)系。而聲畫(huà)對(duì)位，意味著聲音與畫(huà)面在情感、內(nèi)涵、情緒、情調(diào)、氛圍、節(jié)奏恰好是錯(cuò)位、對(duì)立的，形成很大反差的。正是由于聲音與畫(huà)面的差異、對(duì)立、錯(cuò)位、相反，才更有力地形成一種對(duì)比和對(duì)照，從而用一種反差的方式更強(qiáng)有力地表達(dá)出正面的意義、價(jià)值。雙軌立體聲主要采用錄制傳統(tǒng)聲學(xué)樂(lè)隊(duì)，而多軌音頻多錄制流行音樂(lè)。常州網(wǎng)課音頻專業(yè)</p><p style="text-indent:25px">任何聲音都可以分解為多個(gè)正弦波和諧波，多個(gè)正弦波和諧波進(jìn)行組合形成復(fù)合波。常州網(wǎng)課音頻專業(yè)</p><p style="text-indent:25px">新生代音頻：ogg格式完全開(kāi)源，完全免費(fèi)，和mp3不相上下的新格式。與MP3類似，OGGVorbis也是對(duì)音頻進(jìn)行有損壓縮編碼，但通過(guò)使用更加先進(jìn)的聲學(xué)模型去減少損失，因此，相同碼率編碼的OGGVorbis比MP3音質(zhì)更好一些，文件也更小一些。另外，MP3格式是受專利保護(hù)的。發(fā)布或者銷售MP3編碼器、MP3解碼器、MP3格式音樂(lè)作品，都需要付專利使用費(fèi)。而OGGVorbis就完全沒(méi)有這個(gè)問(wèn)題。OGGVorbis雖然還不普及，但在音樂(lè)軟件、游戲音效、便攜播放器、網(wǎng)絡(luò)瀏覽器上都得到廣fan支持。常州網(wǎng)課音頻專業(yè)</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2876813.html</p></div></div></div></div></div><div id="trnjugc" class="page-right twoColRt"><div id="qekgx7o" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="yrs8htk" 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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