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#f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>江蘇網(wǎng)課音頻網(wǎng)站,音頻</p><p><span>***更新：</span>2021-01-22 03:11:25</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="pyvxpw2" 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="uivspwt" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="afczrdf" class="box"><p><p style="text-indent:25px">流動(dòng)旋律：RealAudio主要適用于在網(wǎng)絡(luò)上的在線音樂欣賞，大多數(shù)的用戶仍然在使用56Kbps或更低速率的Modem，所以典型的回放并非好的音質(zhì)。有的下載站點(diǎn)會(huì)提示你根據(jù)你的Modem速率選擇佳的Real文件。real的的文件格式主要有這么幾種：有RA（RealAudio）、RM（RealMedia，RealAudio G2）、RMX（RealAudio Secured），還有更多。這些格式的特點(diǎn)是可以隨網(wǎng)絡(luò)帶寬的不同而改變聲音的質(zhì)量，在保證大多數(shù)人聽到流暢聲音的前提下，江蘇網(wǎng)課音頻網(wǎng)站，令帶寬較富裕的聽眾獲得較好的音質(zhì)。隨著網(wǎng)絡(luò)帶寬的普遍改善，Real公司正推出用于網(wǎng)絡(luò)廣播的、達(dá)到CD音質(zhì)的格式。如果你的RealPlayer軟件不能處理這種格式，江蘇網(wǎng)課音頻網(wǎng)站，它就會(huì)提醒你下載一個(gè)**的升級(jí)包，江蘇網(wǎng)課音頻網(wǎng)站。許多音樂網(wǎng)站提供了歌曲的Real格式的試聽版本?，F(xiàn)在新的版本是RealPlayer 11。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)。江蘇網(wǎng)課音頻網(wǎng)站</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇網(wǎng)課音頻網(wǎng)站,音頻" src="https://tyunfile.71360.com/UploadFile/huaiyan/637414038435708517/1254231.png"></div><p style="text-indent:25px">采樣頻率就是采用一段音頻，做為樣本，因?yàn)閣av使用的是數(shù)碼信號(hào)，它是用一堆數(shù)字來描述原來的模擬信號(hào)，所以它要對(duì)原來的模擬信號(hào)進(jìn)行分析，我們知道所有的聲音都有其波形，數(shù)碼信號(hào)就是在原有的模擬信號(hào)波形上每隔一段時(shí)間進(jìn)行一次“取點(diǎn)”，賦予每一個(gè)點(diǎn)以一個(gè)數(shù)值，這就是“采樣”，然后把所有的“點(diǎn)”連起來就可以描述模擬信號(hào)了，很明顯，在一定時(shí)間內(nèi)取的點(diǎn)越多，描述出來的波形就越精確，這個(gè)尺度我們就稱為“采樣頻率”。我們常用的采樣頻率是44.1kHz，它的意思是每秒取樣44100次。之所以使用這個(gè)數(shù)值是因?yàn)榻?jīng)過了反復(fù)實(shí)驗(yàn)（實(shí)際上是那個(gè)時(shí)代才是視頻27/1.0001時(shí)鐘做CD刻錄遺留問題），人們發(fā)現(xiàn)這個(gè)采樣頻率合適，低于這個(gè)值就會(huì)有較明顯的損失，而高于這個(gè)值人的耳朵已經(jīng)很難分辨，而且增大了數(shù)字音頻所占用的空間。江蘇網(wǎng)課音頻網(wǎng)站模擬音頻可以用電子的、機(jī)械的、磁性的或光學(xué)的形式來表現(xiàn)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇網(wǎng)課音頻網(wǎng)站,音頻" src="https://tyunfile.71360.com/UploadFile/huaiyan/637414038729419531/318452.png"></div><p style="text-indent:25px">VU表和PPM表的工作原理：VU表即音量單位表，是一種準(zhǔn)平均值表，當(dāng)一個(gè)功率電平為4dB（1.228V），內(nèi)阻為600Ω.信號(hào)頻率為1KHZ的正弦波信號(hào)在VU表的輸入端時(shí),表針刻度盤上位置在0VU.單位為每一個(gè)VU表示為一個(gè)dB，VU表和人耳對(duì)聲音的響度感受比較吻合，但不能指示峰值，是人的聽覺的均方根值。PPM表，實(shí)際上是準(zhǔn)峰值電平表，因?yàn)樗遣捎梅逯禉z波器而按簡(jiǎn)諧信號(hào)的有效值確定刻度的，PPM表的大特點(diǎn)是指針上升快，恢復(fù)慢，比較真實(shí)地反映出聲音信號(hào)的準(zhǔn)峰值變化，從而可避免設(shè)備過載，便于有效地控制和利用好傳輸入系統(tǒng)的大動(dòng)態(tài)。</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(hào)表示方法。可以用電子的、機(jī)械的、磁性的或光學(xué)的形式來表現(xiàn)?？梢圆蓸樱瑹o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(chǔ)存和傳送音頻的手段。通過采樣、量化、編碼等，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(gè)低頻到某個(gè)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(tái)：控制和分配各種信號(hào)，包括信號(hào)的連接和走向，母線、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(hào)振幅按一定間距設(shè)定的有限個(gè)不連續(xù)振幅電平，從而將連續(xù)信號(hào)轉(zhuǎn)變階梯狀的不連續(xù)信號(hào)波形的操作叫量化。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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇網(wǎng)課音頻網(wǎng)站,音頻" src="https://tyunfile.71360.com/UploadFile/huaiyan/637414038273765192/3596499.png"></div><p style="text-indent:25px">成為一個(gè)質(zhì)量音頻師應(yīng)具備的素質(zhì)：音頻既不是純技術(shù)的也不是純藝術(shù)的，而一個(gè)音頻師，首先面對(duì)的就是技術(shù)設(shè)備這一關(guān)，但是*過了技術(shù)這道門檻是不夠的，能不能做一名有創(chuàng)造性的音頻師或者是聲音設(shè)計(jì)師還需要對(duì)聲音具有創(chuàng)造力和表現(xiàn)力。很多時(shí)候聲音是被人們“忽視”的，或者說某些聲音只被人的下意識(shí)注意到了。作為一名音頻師來說，你要能夠把這種下意識(shí)上升為意識(shí)，要能主動(dòng)地運(yùn)用聲音來表現(xiàn)出創(chuàng)作者所要傳達(dá)的內(nèi)容、情緒。所以，一名真正合格的音頻師，一，要精通技術(shù)，不能讓技術(shù)成為你的障礙；第二，要對(duì)聲音有足夠的了解，這也是進(jìn)行聲音創(chuàng)作的起點(diǎn)，只有了解聲音才能運(yùn)用，以至創(chuàng)造性運(yùn)用。就像演奏樂曲一樣，首先要會(huì)演奏，你才能表現(xiàn)樂曲的內(nèi)容。在此基礎(chǔ)上，由于對(duì)樂曲的熟練，才能把它以動(dòng)聽和美妙的方式展現(xiàn)。音頻也是這樣，運(yùn)用技術(shù)來實(shí)現(xiàn)想法。技術(shù)和創(chuàng)作二者是不能脫節(jié)的，他們是一張紙的兩面，缺了哪面都不行。作為一名音頻師就是要隨時(shí)捕捉聲音，利用聲音，創(chuàng)作聲音。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。南通浙江傳媒學(xué)院音頻哪家便宜</p><p style="text-indent:25px">數(shù)字音頻如果記錄格式(采樣頻率、量化)確定，性能的極限也就確定，而且轉(zhuǎn)錄沒有任何損失。江蘇網(wǎng)課音頻網(wǎng)站</p><p style="text-indent:25px">音頻藝術(shù)專業(yè)對(duì)聲音記錄及處理的質(zhì)量要求很高，大家聽到的CD，電視聲，廣播聲，等等，都由音頻藝術(shù)專業(yè)人員經(jīng)過一系列漫長(zhǎng)的過程，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（如CD機(jī)，電視機(jī)，音箱，耳機(jī)等等），播放出來。然后播放出來的效果，也是聲音的佳效果。一般記錄的聲音質(zhì)量，是高于CD的聲音質(zhì)量（CD則是錄制后的壓縮格式）?！瞞p3,wma等等的格式，被稱為有損壓縮格式，為CD之后的壓縮格式（注：聲音質(zhì)量損失極多，但是容量也就相應(yīng)小，適于儲(chǔ)存）。wav格式為無損格式（注：質(zhì)量高的格式，對(duì)儲(chǔ)存空間需求很大）。ape、flac為無損壓縮格式（注：是壓縮格式，不進(jìn)行還原操作一樣會(huì)損失音質(zhì)，可完全還原為壓縮之前的音質(zhì)，適于傳輸和保存）〕江蘇網(wǎng)課音頻網(wǎng)站</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2952889.html</p></div></div></div></div></div><div id="88x7bqn" class="page-right twoColRt"><div id="xmjgd7j" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8g7jbn3" 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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