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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head>
<title>Projekt web Stranica</title>
<meta http-equiv="Content-type" content="text/html; charset=utf-8">
<link rel="stylesheet" href="css.css" type="text/css" media="screen" />
<link href="style.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="jquery-1.2.6.min.js"></script>
<script type="text/javascript" src="jquery-ui-personalized-1.5.2.packed.js"></script>
<script type="text/javascript" src="sprinkle.js"></script>
<style type="text/css">
a {color: #2E6194;}
a:link {color: #2E6194;text-decoration: none;}
a:visited {color: #285580;text-decoration: none;}
a:hover {text-decoration: underline;}
.glossymenu{
position: relative;
padding: 0 0 0 34px;
margin: 0 auto 0 auto;
background: url(media/menur_bg.gif) repeat-x; /*tab background image path*/
height: 46px;
list-style: none;
}
.glossymenu li{
float:left;
}
.glossymenu li a{
float: left;
display: block;
color:#000;
text-decoration: none;
font-family: sans-serif;
font-size: 13px;
font-weight: bold;
padding:0 0 0 16px; /*Padding to accomodate left tab image. Do not change*/
height: 46px;
line-height: 46px;
text-align: center;
cursor: pointer;
}
.glossymenu li a b{
float: left;
display: block;
padding: 0 24px 0 8px; /*Padding of menu items*/
}
.glossymenu li.current a, .glossymenu li a:hover{
color: #346870;
background: url(media/menur_hover_left.gif) no-repeat; /*left tab image path*/
background-position: left;
}
.glossymenu li.current a b, .glossymenu li a:hover b{
color: #fff;
background: url(./slike/ca.jpg) no-repeat right top; /*right tab image path*/
}
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.default {
font: Arial, Helvetica, sans-serif;
font-size: 10pt;
}
table {
font: Arial, Helvetica, sans-serif;
font-size: 10pt;
}
</style>
</head>
<body>
<font face="GulimChe, Arial, Helvetica, sans-serif">
<div id="izvan">
</div><!--kraj izvan-->
<div id="unutar">
<table class="1table" border="0" cellpadding="0" cellspacing="0" width="1000">
<tbody><tr>
<td colspan="3">
<img src="./slike/etfos.jpg" width="250px" height="150px"align="center" alt="">
<img src="./slike/5501.jpg" width="748px" height="150px" alt="">
</td>
</tr>
<tr>
<td colspan="3" height="30">
<ul class="glossymenu">
<li ><a href="index.html"><b>Pocetna</b></a></li>
<li class="current"><a href="literatura.html"><b>Literatura</b></a></li>
<li ><a href="audio.html"><b>Primjeri</b></a></li>
</ul>
</td>
</tr>
<tr>
<td width="32"> </td>
<td valign="top" width="100">
<br>
<br>
<br>
<br>
<br>
<p class="slicne">Slične Stranice:</p> <br>
<div class="gallerycontainer">
<a class="thumbnail" href="http://dosl.zesoi.fer.hr/seminari/1998_1999/vrbanic-ribaric/mpeg1.htm">
<img src="./slike/8literatura1_min.jpg" width="75px" height="75px" border="0" /><span><img src="./slike/8literatura1.jpg" /> </span></a>
<a class="thumbnail" href="http://www.mpgedit.org/mpgedit/mpeg_format/mpeghdr.htm">
<img src="./slike/8literatura2.jpg" width="75px" height="75px" border="0" /><span><img src="./slike/8literatura2.jpg" /><br /> </span></a>
</div>
</td>
<td class="default" valign="top" width="*">
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<!--Literatura-->
<br><br>
<h3>MPEG-1 Audio</h3>
<p>
</p>
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<div id="tabvanilla" class="widget">
<ul class="tabnav">
<li><a href="#popular">Uvod</a></li>
<li><a href="#recent">MPEG 1 audio kompresija</a></li>
<li><a href="#featured">MPEG 1 audio slojevi</a></li>
</ul>
<div id="popular" class="tabdiv">
<ul><li>tri algoritma ("downward compatible")</li></ul>
<li>Layer-1, 2 i 3</li>
<ul><li>brzina 1.5 Mb/s za video + audio, od toga 0.3 Mb/s za audio</li></ul>
<ul><li>podržava 4 moda rada</li></ul>
<li>mono</li>
<li>dual-mono (npr.dva jezika)</li>
<li>stereo</li>
<li>uzdrženi stereo (iskorištava korelaciju u stereo kanalima)</li>
<ul><li>radi na 32 do 448 kbps po kanalu</li></ul>
<ul><li>uzorkovanje 32, 44.1, 48 kHz</li></ul>
<ul><li>stupanj kompresije od 2.7 do 24</li></ul>
<ul><li>rade s gubitkom, ali ne osjetilnim (perceptivnim)</li></ul>
<li>koristi pojavu frekvencijskog i temporalnog maskiranja</li>
<li>s kompresijom 6:1 (za 16 bitni stereo s uzorkovanjem s 48 kHz to je
256 kb/s) eksperti ne razlikuju kodirani od originalnog audia</li>
</div><!--/popular-->
<div id="recent" class="tabdiv">
<ul><li>Metoda:</li></ul>
<li>ulaz je podijeljen u 32 frekvencijska podpojasa;</li>
<li>na temelju psihoakustičkog modela definira se količina maskiranja u pojedinom pojasu;</li>
<li>ako je snaga pojasa ispod praga maskiranja ne kodiraju se uzorci;</li>
<li>ako je snaga pojasa iznad praga maskiranja</li>
<li>određuje se potreban broj bitova tako da </li>
<li>kvantizacijski šum pada ispod praga maskiranja;</li>
</div><!--/recent-->
<div id="featured" class="tabdiv">
<ul><li>Layer 1 </ul></li>
<li>pojednostavljena verzija MUSICAM-a</li>
<li>jednostavni koderi</li>
<li>192 - 256 Kbps po kanalu</li>
<li>definirane brzine 32-448 kbps</li>
<ul><li>Layer 2 </ul></li>
<li>istovjetan MUSICAM standardu</li>
<li>96 do 128 Kbps po kanalu</li>
<li>definirane brzine 32-384 Kbps</li>
<li>stereo, pribli߮o kvaliteta CD-a</li>
<ul><li>Layer 3</ul></li>
<li>kombinacija MUSICAM-a i ASPEC-a (kompr. shema)</li>
<li>64 Kbps po kanalu</li>
<li>definirane brzine 32-320 Kbps</li>
<li>vrlo blizu CD kvaliteti</li>
<li>MP3 format je MPEG1 Layer 3 audio format</li>
</div><!--featured-->
</div><!--end widget-->
<br>
<!--Kljucni pojmovi-->
<div class="cente"><table border="0" align="left" cellpadding="5"cellspacing="10">
<tr>
<th ><a class="anchor" href="literatura.html"> Nazad<img src="./slike/arrow1.gif" width="30px" height="18px" border="0" /></a></th>
<th ><a class="anchor" href="#"></a></th>
</tr>
<tr>
<th><a class="anchor" href="literatura1.html">1.Svojstva audio signala</a></th>
<th><a class="anchor" href="literatura1.html"><img src="./slike/arrow.gif" width="30px" height="18px" border="0" /></a></th>
</tr>
<tr>
<th><a class="anchor" href="literatura2.html">2.Digitalizacija govora</a></th>
<th><a class="anchor" href="literatura2.html"><img src="./slike/arrow.gif" width="30px" height="18px" border="0" /></a></th>
</tr>
<tr>
<th><a class="anchor" href="literatura3.html">3.Dinamički raspon ljudskog sluha</a></th>
<th><a class="anchor" href="literatura3.html"><img src="./slike/arrow.gif" width="30px" height="18px" border="0" /></a></th>
</tr>
<tr>
<th><a class="anchor" href="literatura4.html">4.CD audio kodiranje</a></th>
<th><a class="anchor" href="literatura4.html"><img src="./slike/arrow.gif" width="30px" height="18px" border="0" /></a></th>
</tr>
<tr>
<th><a class="anchor" href="literatura5.html">5.DVD audio kodiranje</a></th>
<th><a class="anchor" href="literatura5.html"><img src="./slike/arrow.gif" width="30px" height="18px" border="0" /></a></th>
</tr>
<tr>
<th><a class="anchor" href="literatura6.html">6.Drugi audio standardi</a></th>
<th><a class="anchor" href="literatura6.html"><img src="./slike/arrow.gif" width="30px" height="18px" border="0" /></a></th>
</tr>
<tr>
<th><a class="anchor" href="literatura7.html">7.Tehnike za kodiranje govora</a></th>
<th><a class="anchor" href="literatura7.html"><img src="./slike/arrow.gif" width="30px" height="18px" border="0" /></a></th>
</tr>
<tr>
<th><a class="anchor" href="literatura9.html">9.MPEG-1 audio layers</a></th>
<th><a class="anchor" href="literatura9.html"><img src="./slike/arrow.gif" width="30px" height="18px" border="0" /></a></th>
</tr>
</table></div>
<!--Kraj kljucnih pojmova-->
<hr>
<h4 class="link" align="center">Link na službenu web stranicu kolegija <a href="http://www.etfos.hr/?smjer=inf&predmet=SR601&strucni_studij&strucni=5"> Multimedijska tehnika</a> kolegiju možete pristupiti putem moodle-a <a href="http://moodle.etfos.hr/"> ovdje</a></h4>
<hr>
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</b></td></tr>
</tbody></table>
</div><!--kraj unutar-->
</font>
</body></html>