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class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/huaiyan/637414038483042832/5102551.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="2snrsrp" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/huaiyan/637414038483042832/5102551.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="rqxeu2d" 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>產品關鍵詞：</span>南通音頻課程,音頻</p><p><span>***更新：</span>2021-02-06 03:10:15</p><p><span id="click" >瀏覽次數(shù)：4次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="8eqhyms" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海懷嚴文化傳媒有限公司</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: </span>021-64458098</p><p><span>地址: </span>宜山路508號3E室</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="a2a9ubi" class="page-proshow02"><p class="title">詳細說明</p><div id="ixut8ql" class="box"><p><p style="text-indent:25px">音頻是個專業(yè)術語，音頻一詞已用作一般性描述音頻范圍內和聲音有關的設備及其作用。1.Audio，指人耳可以聽到的聲音頻率在20HZ~20kHz之間的聲波，稱為音頻。2.指存儲聲音內容的文件。3.在某些方面能指作為濾波的振動。我國實行作品自愿登記制度的在于維護作者或其他著作權人和作品使用者的合法權益，有助于解決因著作權歸屬造成的著作權糾紛，南通音頻課程，并為解決著作權糾紛提供初步證據(jù)。任何登記和留證行為都是證實權利的初步證據(jù)。1.選擇中國版權保護中心官方指定傳統(tǒng)登記備案機構。2，南通音頻課程.在選擇行業(yè)協(xié)會等第三方平臺快速電子數(shù)據(jù)登記存證備案，南通音頻課程。人類能夠聽到的所有聲音都稱之為音頻，它可能包括噪音等。南通音頻課程</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通音頻課程,音頻" src="https://tyunfile.71360.com/UploadFile/huaiyan/637414038483042832/5102551.png"></div><p style="text-indent:25px">回聲（殘響）：一個聲源的信號的不連續(xù)反復，與混響不同在于其聲音間隔更**于50-80毫秒。白噪聲：包含所有頻率且各頻率聲能的增量都相等的一種隨機信號，在還音過程中，白噪聲聽起來非常明亮，因為10KHZ到20KHZ的高頻范圍內和0HZ到10KHZ之間包含的白噪聲能量是相同的。粉紅噪聲：各倍頻程中聲能相等的隨機噪聲，利用粉紅噪聲以及實時頻譜分析儀可以測試聲音系統(tǒng)。衍射：指聲波有繞過或通過聲學障礙物的固有能力。是聲音能夠在死角被聽見的屬性，原因是當聲音到達障礙物時會產生彎曲現(xiàn)象。擴散：聲音遇到障礙物就會產生反射現(xiàn)象，良好的擴散會產生平滑的混響聲，而不會產生回聲那樣不連續(xù)的聲音。音頻：聲音以電子或者其他方式在媒介上的存在形式，并非聲音本身。南通音頻課程聲音的聲學特性如音的高低等都可以用計算機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="南通音頻課程,音頻" src="https://tyunfile.71360.com/UploadFile/huaiyan/637414038631899944/1503649.png"></div><p style="text-indent:25px">音頻處理：一、音頻媒體的數(shù)字化處理：隨著計算機技術的發(fā)展，特別是海量存儲設備和大容量內存在PC機上的實現(xiàn)，對音頻媒體進行數(shù)字化處理便成為可能。數(shù)字化處理的中心是對音頻信息的采樣，通過對采集到的樣本進行加工，達成各種效果，這是音頻媒體數(shù)字化處理的基本含義。二、音頻媒體的基本處理：基本的音頻數(shù)字化處理包括以下幾種：不同采樣率、頻率、通道數(shù)之間的變換和轉換。其中變換只是簡單地將其視為另一種格式，而轉換通過重采樣來進行，其中還可以根據(jù)需要采用插值算法以補償失真。針對音頻數(shù)據(jù)本身進行的各種變換，如淡入、淡出、音量調節(jié)等。通過數(shù)字濾波算法進行的變換，如高通、低通濾波器。</p><p style="text-indent:25px">相位：因為一個周期可始于波形的任意一點，所以可以用兩個波形發(fā)生器來產生頻率相同且振幅值相等的兩個正弦波，但它們在同一時刻上幅度不同。這樣的波形稱為不同相的波。相移：一個波形相對于另一個波形超前或滯后的相位量，是其中一個波形在傳輸上時間延遲的結果。相移度=時間延遲（秒）×頻率×360度。拍音與拍頻：兩個頻率相近簡諧振動產生的疊加振動，其振幅形成周期性變化的聲現(xiàn)象稱為拍音，這一合成振幅的變化頻率稱為拍頻。等于兩個振動的頻率之差。諧波：一個具有頻率為一個波形頻率的整倍數(shù)的波形，就稱為一個波形的諧波。任何重復的波形都可以分解為含有基波頻率和一系列為基波倍數(shù)的諧波的正弦波分量。傳聲器可以是全向的，也可以是心形的。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通音頻課程,音頻" src="https://tyunfile.71360.com/UploadFile/huaiyan/637414038105973314/2961856.png"></div><p style="text-indent:25px">新生代音頻：ogg格式完全開源，完全**，和mp3不相上下的新格式。與MP3類似，OGGVorbis也是對音頻進行有損壓縮編碼，但通過使用更加先進的聲學模型去減少損失，因此，相同碼率編碼的OGGVorbis比MP3音質更好一些，文件也更小一些。另外，MP3格式是受**保護的。發(fā)布或者銷售MP3編碼器、MP3解碼器、MP3格式音樂作品，都需要付**使用費。而OGGVorbis就完全沒有這個問題。OGGVorbis雖然還不普及，但在音樂軟件、游戲音效、便攜播放器、網(wǎng)絡瀏覽器上都得到廣fan支持。一個聲源的信號的不連續(xù)反復，與混響不同在于其聲音間隔更**于50-80毫秒。常州上海體育學院音頻專業(yè)</p><p style="text-indent:25px">Audio，指人耳可以聽到的聲音頻率在20HZ~20kHz之間的聲波，稱為音頻。南通音頻課程</p><p style="text-indent:25px">頻程的含義：頻程又成頻帶。兩個聲或其他信號的頻率間的距離，是頻率的相對尺度。以高頻與低頻的率比的對數(shù)來表示。此對數(shù)通常以2為底，單位稱為倍頻程（oct）。也可以以10為底的對數(shù)表示，此時單位為10倍程（decede）。把20～20000HZ可聞聲頻率變化范圍劃分成的若干個較小的段落。通常劃分為10段頻程或30段頻程，也稱頻帶。立體聲擴展技術原理：使一只揚聲器的信號相對于另一只揚聲器的作相移能引起聽覺幻想在一定程度上的擴展，稱之為立體聲擴展技術。相移度為0度時，產生定位在中間的幻想，為點聲源。相移為---135度時，聲像開始擴大，為面聲源。相移度超過135度時，聲像開始分開，聲像不自然。相移度到達180度時，即產生“倒相”，定位完全含糊不清。南通音頻課程</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3184453.html</p></div></div></div></div></div><div id="i3iwsyf" class="page-right twoColRt"><div id="v3i4jqi" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8tu27tk" 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配件哪家強信息推薦自業(yè)物資供應" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應</p></a></div><div id="fculnov" 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