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href="http://www.cdcfah.com/cp/second-swfw_zlhxx/">展覽會(huì)信息</a>?<a href="http://www.cdcfah.com/cp/third-zlhxx_jypxysz/">教育、培訓(xùn)、藝術(shù)展</a>?蘇州上海體育學(xué)院音頻證書誠信經(jīng)營上海懷嚴(yán)文化傳媒供應(yīng)</p><div id="5xcgqzu" class="leftbox clearfix"><h1>蘇州上海體育學(xué)院音頻證書誠信經(jīng)營上海懷嚴(yán)文化傳媒供應(yīng)</h1><div id="u5tohm8" class="proBig"><div id="ohdrah5" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/huaiyan/637414038545269068/3793869.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="b0a5erh" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/huaiyan/637414038545269068/3793869.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="d8prouz" 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>蘇州上海體育學(xué)院音頻證書,音頻</p><p><span>***更新：</span>2021-01-30 05:11:24</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="vytwi4c" 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="ao0kogu" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="yao4g8e" class="box"><p><p style="text-indent:25px">雙軌立體聲音頻和多軌立體聲音頻的區(qū)別：雙軌立體聲音頻采用一對(duì)立體聲話筒為主傳聲器，加若干輔助傳聲器的方式進(jìn)行音頻，蘇州上海體育學(xué)院音頻證書，因而傳聲器設(shè)置十分重要，音頻成敗很關(guān)鍵，后期混縮工作比較簡(jiǎn)單。多軌立體聲音頻采用多路傳聲器拾取信號(hào)，因而后期縮混成為音頻成敗的關(guān)鍵。雙軌立體聲音頻效果處理上采用自然效果，依靠聲場(chǎng)進(jìn)行加工，蘇州上海體育學(xué)院音頻證書，對(duì)聲場(chǎng)聲學(xué)條件要求高。多軌立體聲音頻采用近距離拾音，加人工混響的方式，因而對(duì)聲場(chǎng)要求不嚴(yán)格，通常采用強(qiáng)吸收短混響的音頻棚。生源方面，雙軌立體聲主要采用錄制傳統(tǒng)聲學(xué)樂隊(duì)，蘇州上海體育學(xué)院音頻證書，而多軌音頻多錄制流行音樂。雙軌立體聲音頻采用一對(duì)立體聲話筒為主傳聲器，加若干輔助傳聲器的方式進(jìn)行音頻。蘇州上海體育學(xué)院音頻證書</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州上海體育學(xué)院音頻證書,音頻" src="https://tyunfile.71360.com/UploadFile/huaiyan/637414038545269068/3793869.png"></div><p style="text-indent:25px">WAV是微軟開發(fā)的一種聲音文件格式，它符合 PIFFResource Interchange File Format 文件規(guī)范，用于保存WINDOWS平臺(tái)的音頻信息資源，被WINDOWS平臺(tái)及其應(yīng)用程序所支持?！?.WAV”格式支持MSADPCM、CCITT A LAW等多種壓縮算法，支持多種音頻位數(shù)、采樣頻率和聲道，標(biāo)準(zhǔn)格式的WAV文件和CD格式一樣，也是44.1K的采樣頻率，速率88K/秒，16位量化位數(shù)，看到了吧，WAV格式的聲音文件質(zhì)量和CD相差無幾，也是PC機(jī)上廣為流行的聲音文件格式，幾乎所有的音頻編輯軟件都“認(rèn)識(shí)”WAV格式。這里順便提一下由蘋果開發(fā)的AIFF（Audio Interchange File Format）格式和為UNIX系統(tǒng)開發(fā)的AU格式，它們都和和WAV非常相像，在大多數(shù)的音頻編輯軟件中也都支持它們這幾種常見的音樂格式。蘇州上海體育學(xué)院音頻證書聲音的聲學(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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州上海體育學(xué)院音頻證書,音頻" src="https://tyunfile.71360.com/UploadFile/huaiyan/637414038759321840/9224192.png"></div><p style="text-indent:25px">回聲（殘響）：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**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(jī)信號(hào)，在還音過程中，白噪聲聽起來非常明亮，因?yàn)?0KHZ到20KHZ的高頻范圍內(nèi)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(jī)噪聲，利用粉紅噪聲以及實(shí)時(shí)頻譜分析儀可以測(cè)試聲音系統(tǒng)。衍射：指聲波有繞過或通過聲學(xué)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(dāng)聲音到達(dá)障礙物時(shí)會(huì)產(chǎn)生彎曲現(xiàn)象。擴(kuò)散：聲音遇到障礙物就會(huì)產(chǎn)生反射現(xiàn)象，良好的擴(kuò)散會(huì)產(chǎn)生平滑的混響聲，而不會(huì)產(chǎn)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。</p><p style="text-indent:25px">壓縮器的功能：壓縮器是一種放大器，具有壓縮閥，低于閥值的輸入信號(hào)以固有的增益給予放大，高于閥值的輸入信號(hào)則按照特定的壓縮比進(jìn)行壓縮。一般有門限、啟動(dòng)時(shí)間、恢復(fù)時(shí)間和壓縮比可調(diào)。功能：（1）壓縮器可以避免削波失真，提高信噪比。（2）可以避免電平過高引起信號(hào)饋入而保護(hù)傳聲器和音箱。（3）在現(xiàn)場(chǎng)擴(kuò)聲中提高平均電平。（4）對(duì)傳聲器、電聲設(shè)備信號(hào)起到音量平衡作用。（5）改善音質(zhì)。（6）用于產(chǎn)生所謂的“潛入效果”或產(chǎn)生某些“特技效果音”。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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州上海體育學(xué)院音頻證書,音頻" src="https://tyunfile.71360.com/UploadFile/huaiyan/637414038105973314/2961856.png"></div><p style="text-indent:25px">人類聽覺的頻響特征：頻率響應(yīng)指人的聽覺系統(tǒng)或電聲設(shè)備對(duì)各種頻率成分的反映能力。特征：（1）聲壓級(jí)越高，人的聽覺頻響會(huì)越趨平直，而隨著聲音聲壓級(jí)的降低，人的聽覺頻響會(huì)相應(yīng)變壞，其中低頻尤甚。（2）人耳對(duì)于高于18—20KHZ和低于16—20HZ的聲音不論聲壓級(jí)多高，一般不會(huì)聽到，因此，可以認(rèn)為20HZ—20KHZ是人類的聽覺頻帶，20HZ—20KHZ稱之為“聲頻”“可聞聲”。高于20KHZ稱“超聲”，低于20HZ聲音稱“次聲”。（3）不論聲壓級(jí)高低，人們對(duì)3KHZ—5KHZ的聲音為敏感。雙軌立體聲音頻效果處理上采用自然效果，依靠聲場(chǎng)進(jìn)行加工，對(duì)聲場(chǎng)聲學(xué)條件要求高。蘇州上海體育學(xué)院音頻證書</p><p style="text-indent:25px">音頻需要掌握電路分析方法及音頻技術(shù)；具有音頻節(jié)目錄制，后期制作及電子音樂制作的基本能力。蘇州上海體育學(xué)院音頻證書</p><p style="text-indent:25px">雙耳效應(yīng)：盡管單耳耳廓的選聽功能對(duì)方位聽感有某些作用，但人是用兩耳聆聽的，對(duì)方位的感覺是依靠雙耳完成的，這就是雙耳效應(yīng)。人耳對(duì)方位感的作用機(jī)理：人耳在一定的聲學(xué)空間內(nèi)能夠?qū)β曉炊ㄎ坏哪芰ΨQ空間定位，取決于兩耳聽覺上的強(qiáng)度差、到達(dá)兩耳的時(shí)間差、耳廓的作用。雙耳的時(shí)間差和相位差是低頻的水平定位的主要因素，隨著頻率的提高，雙耳間的相位可能相同，這時(shí)聲壓差和音色差就成了水平定位的主要因素，人耳的縱向定位能力較差。早期反射聲：指經(jīng)過一次、兩次或多次反射后到達(dá)接受者的聲音，與混響不同，每個(gè)反射聲可以區(qū)分，可以改變聲音的音色、位置和空間感。蘇州上海體育學(xué)院音頻證書</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3075429.html</p></div></div></div></div></div><div id="q02iyec" class="page-right twoColRt"><div id="e6oecmq" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="qos68iw" 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" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 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