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		<pubDate>Wed, 10 Feb 2010 11:57:03 +0000</pubDate>
		<dc:creator>toniinfo</dc:creator>
				<category><![CDATA[Aplicativos/Utilitários]]></category>
		<category><![CDATA[Diversos]]></category>
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		<title>CoDec – Parte #4</title>
		<link>http://toniinfocorp.wordpress.com/2009/12/27/codec-parte-4/</link>
		<comments>http://toniinfocorp.wordpress.com/2009/12/27/codec-parte-4/#comments</comments>
		<pubDate>Sun, 27 Dec 2009 20:27:23 +0000</pubDate>
		<dc:creator>toniinfo</dc:creator>
				<category><![CDATA[Aplicativos/Utilitários]]></category>
		<category><![CDATA[Informações e Dicas]]></category>
		<category><![CDATA[codec]]></category>
		<category><![CDATA[download]]></category>
		<category><![CDATA[imagem]]></category>
		<category><![CDATA[k-lite mega codec pack]]></category>
		<category><![CDATA[som]]></category>
		<category><![CDATA[xp codec pack]]></category>

		<guid isPermaLink="false">http://toniinfocorp.wordpress.com/?p=2165</guid>
		<description><![CDATA[CoDec – Parte #4<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=toniinfocorp.wordpress.com&amp;blog=5787339&amp;post=2165&amp;subd=toniinfocorp&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p style="text-align:justify;">Agora que vimos a <a href="http://toniinfocorp.wordpress.com/2009/12/06/codec-parte-1/" target="_blank">função dos CoDecs</a> e como eles trabalham, percebemos que eles são indispensáveis a qualquer computador.</p>
<p style="text-align:justify;">Então&#8230; <strong>Na última postagem da série sobre CoDecs</strong>, apresentamos duas sugestões de pacotes CoDecs para você instalar em sua máquina&#8230;</p>
<p style="text-align:justify;"><span style="color:#ff0000;"><strong>Vale lembrar que não se deve ter dois Pacotes de CoDecs instalados num mesmo pc. Além de ocupar espaço, eles podem entrar em conflito e impossibilitar a execução de seus arquivos de mídia.</strong></span></p>
<p>Vamos às sugestões:</p>
<ul>
<li>
<h3>XP Codec Pack</h3>
</li>
</ul>
<p style="text-align:center;"><a href="http://toniinfocorp.files.wordpress.com/2009/12/xp-codec-pack.jpg"><img class="aligncenter size-full wp-image-2166" title="xp-codec-pack" src="http://toniinfocorp.files.wordpress.com/2009/12/xp-codec-pack.jpg?w=237&#038;h=245" alt="" width="237" height="245" /></a></p>
<p style="text-align:justify;">Este pacote contém os seguintes codecs:</p>
<p style="text-align:justify;">C3Filter, AVI Splitter, CDXA Reader, CoreAAC, CoreFlac Decoder, FFDShow MPEG-4 Video Decoder, GPL MPEG-1/2 Decoder, Matroska Splitter, OggSplitter/CoreVorbis, RadLight APE Filter, RadLight MPC Filter, RadLight OFR Filter, RealMedia Splitter, RadLight TTA Filter, VSFilter (DirectVobSub) e o aplicativo Media Player Classic integrado.</p>
<p><strong><span style="color:#ffff00;">» Informações «</span><br />
</strong></p>
<p><strong>Nome:</strong> XP Codec Pack<br />
<strong> Tipo:</strong> Codecs<br />
<strong>Licença:</strong> <em>Freeware</em><strong><br />
Formato do Arquivo:</strong> .EXE<strong><br />
Tamanho:</strong> 8 MB (aprox.)</p>
<p><span style="color:#ffff00;"><strong>» Baixar: </strong></span><a href="http://www.xpcodecpack.com/dl/XP-Codec-Pack-2.5.0.exe" target="_blank">XP Codec Pack</a> (em pt-br | Link do desenvolvedor)</p>
<p>.</p>
<ul>
<li>
<h3>K-Lite Mega Codec Pack</h3>
</li>
</ul>
<p style="text-align:left;"><a href="http://toniinfocorp.files.wordpress.com/2009/12/klite_codec_pack_full.jpg"><img class="aligncenter size-full wp-image-2168" title="klite_codec_pack_full" src="http://toniinfocorp.files.wordpress.com/2009/12/klite_codec_pack_full.jpg?w=241&#038;h=248" alt="" width="241" height="248" /></a></p>
<p style="text-align:justify;">Este pacote contém os seguintes codecs:</p>
<p style="text-align:justify;">Xvid, DivX, H.264, VP6, VP7, MPEG-2, MPEG-1, Indeo 4 e 5, MP4, FLV, H.261, RealMedia, AC3, MP1, MP2, MP3, Vorbis, AAC e AMR.<br />
Inclui ainda: Tweak Tool (que identifica codecs e filtros danificados e ajuda a arrumá-los ou removê-los), a Media Info Lite (analisa um arquivo de mídia e exibe informações detalhadas sobre ele) e o VobSub, utilizado para mostrar legendas SUB em vídeos e o Media Player Classic.</p>
<p><strong><span style="color:#ffff00;">» Informações «</span><br />
</strong></p>
<p><strong>Nome:</strong> K-Lite Mega Codec Pack<br />
<strong> Tipo:</strong> Codecs<br />
<strong>Licença:</strong> <em>Freeware</em><strong><br />
Formato do Arquivo:</strong> .EXE<strong><br />
Tamanho:</strong> 24 MB (aprox.)</p>
<p><strong><span style="color:#ffff00;">» Baixar:</span> </strong><a href="http://pgsql.cdpa.nsysu.edu.tw/cpatch/media/k-lite/klmcodec551.exe" target="_blank">K-Lite Mega Codec Pack</a> (Link do desenvolvedor)</p>
<p>.</p>
<p>É isso! Até a próxima!</p>
<br />Publicado emAplicativos/Utilitários, Informações e Dicas Tagged: codec, download, imagem, k-lite mega codec pack, som, xp codec pack <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gocomments/toniinfocorp.wordpress.com/2165/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/comments/toniinfocorp.wordpress.com/2165/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godelicious/toniinfocorp.wordpress.com/2165/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/delicious/toniinfocorp.wordpress.com/2165/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gofacebook/toniinfocorp.wordpress.com/2165/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/facebook/toniinfocorp.wordpress.com/2165/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gotwitter/toniinfocorp.wordpress.com/2165/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/twitter/toniinfocorp.wordpress.com/2165/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gostumble/toniinfocorp.wordpress.com/2165/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/stumble/toniinfocorp.wordpress.com/2165/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godigg/toniinfocorp.wordpress.com/2165/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/digg/toniinfocorp.wordpress.com/2165/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/goreddit/toniinfocorp.wordpress.com/2165/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/reddit/toniinfocorp.wordpress.com/2165/" /></a> <img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=toniinfocorp.wordpress.com&amp;blog=5787339&amp;post=2165&amp;subd=toniinfocorp&amp;ref=&amp;feed=1" width="1" height="1" />]]></content:encoded>
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		<title>CoDec &#8211; Parte #3</title>
		<link>http://toniinfocorp.wordpress.com/2009/12/20/codec-parte-3/</link>
		<comments>http://toniinfocorp.wordpress.com/2009/12/20/codec-parte-3/#comments</comments>
		<pubDate>Sun, 20 Dec 2009 21:23:40 +0000</pubDate>
		<dc:creator>toniinfo</dc:creator>
				<category><![CDATA[Informações e Dicas]]></category>
		<category><![CDATA[bitrate]]></category>
		<category><![CDATA[bits]]></category>
		<category><![CDATA[codec]]></category>
		<category><![CDATA[codificador]]></category>
		<category><![CDATA[descodificador]]></category>
		<category><![CDATA[imagem]]></category>
		<category><![CDATA[som]]></category>
		<category><![CDATA[video]]></category>

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		<description><![CDATA[CoDec - Parte #3<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=toniinfocorp.wordpress.com&amp;blog=5787339&amp;post=2154&amp;subd=toniinfocorp&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<h3 style="text-align:justify;">Tamanho versus Qualidade</h3>
<p style="text-align:justify;">Existem dois tipos de CoDecs: os <strong>SEM PERDA</strong> e os <strong>COM PERDA</strong>.</p>
<p style="text-align:justify;">*Os <span style="color:#ffff00;">SEM PERDA</span> são capazes de codificar o som e/ou imagem <strong>sem alterar a qualidade</strong> do arquivo original.<br />
Exemplos: FLAC, WAV (som); MJPEG, H.264 (vídeo); PNG, TIFF (imagem).</p>
<p style="text-align:justify;">*Já os <span style="color:#ffff00;">COM PERDA</span> codificam som ou imagem, gerando uma <strong>certa perda de qualidade</strong> com a finalidade de alcançar maiores taxas de compressão.<br />
Exemplos: MP3, WMA (som); RMVB, XVID, WMV, DIVX (vídeo); JPEG (imagem).</p>
<h3><a href="http://toniinfocorp.files.wordpress.com/2009/12/multimedia-icon.jpg"><img class="aligncenter size-full wp-image-2155" title="multimedia-icon" src="http://toniinfocorp.files.wordpress.com/2009/12/multimedia-icon.jpg?w=110&#038;h=74" alt="" width="110" height="74" /></a>A TAXA DE BITS</h3>
<h5>(tópico foi extraído da <a href="http://pt.wikipedia.org/wiki/Codec" target="_blank">Wikipédia</a>)</h5>
<p style="text-align:justify;">(ou <em>bitrate</em>, em inglês). <strong>É uma das medidas da qualidade de um arquivo comprimido.<br />
A taxa de bits representa o tamanho final desejado para o arquivo e, normalmente, é apresentada como Kbit/s</strong>.</p>
<p style="text-align:justify;">1 Kbit/s significa que a cada segundo, o codec tem 1000 bits do arquivo final para utilizar, ou seja, se um arquivo de som tem 8 segundos e é comprimido a uma taxa de 1 Kbit/s, o arquivo final terá 8 Kbits ou 1 Kbyte.</p>
<p style="text-align:justify;">Conclui-se, então, que quanto maior for a taxa de bits, melhor será a qualidade do arquivo final, já que o codec terá mais espaço para poder comprimir o arquivo original, necessitando descartar menos informações do arquivo.</p>
<p>Com a popularização do MP3, a taxa de bits de 128 Kbits/s (128000 bits/s = 16 Kbytes/s) foi muito utilizada, já que, no início, essa era a menor taxa de bits que o MP3 poderia utilizar para gerar um arquivo final com boa qualidade. Hoje em dia, com os codecs mais avançados, pode-se gerar arquivos com 64 Kbits/s de qualidade semelhante aos primeiros MP3.<br />
<strong></strong></p>
<p style="text-align:justify;"><a href="http://toniinfocorp.files.wordpress.com/2009/12/multimidia.jpg"><img class="aligncenter size-full wp-image-2156" title="multimidia" src="http://toniinfocorp.files.wordpress.com/2009/12/multimidia.jpg?w=228&#038;h=288" alt="" width="228" height="288" /></a></p>
<p style="text-align:justify;"><strong>As taxas de bits podem ser divididas em três categorias principais:</strong></p>
<ul>
<li> <strong>CBR</strong> (<em>constant bitrate</em>)</li>
</ul>
<p style="text-align:justify;">O codec utiliza uma taxa de bits constante em todo a duração do arquivo. Isso significa que em momentos de silêncio provavelmente haverá desperdício de espaço, enquanto que em momentos de muita intensidade sonora haverá perda maior de informação acústica.</p>
<ul>
<li><strong>VBR</strong> (<em>variable bitrate</em>)</li>
</ul>
<p style="text-align:justify;">O codec utiliza uma taxa de bits variável, dessa forma otimizando a utilização do espaço, ao permitir maior uso deste para os momentos mais necessários e reduzindo a taxa de bits ao mínimo nos momentos de silêncio. A maioria dos codecs sem perdas utiliza esse formato.</p>
<ul>
<li><strong>ABR</strong> (<em>average bitrate</em>)</li>
</ul>
<p style="text-align:justify;">Um tipo específico de VBR que garante que ao final do processo de compressão o arquivo terá uma taxa de bits média pré-definida.</p>
<p>(continua&#8230;)</p>
<br />Publicado emInformações e Dicas Tagged: bitrate, bits, codec, codificador, descodificador, imagem, som, video <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gocomments/toniinfocorp.wordpress.com/2154/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/comments/toniinfocorp.wordpress.com/2154/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godelicious/toniinfocorp.wordpress.com/2154/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/delicious/toniinfocorp.wordpress.com/2154/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gofacebook/toniinfocorp.wordpress.com/2154/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/facebook/toniinfocorp.wordpress.com/2154/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gotwitter/toniinfocorp.wordpress.com/2154/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/twitter/toniinfocorp.wordpress.com/2154/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gostumble/toniinfocorp.wordpress.com/2154/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/stumble/toniinfocorp.wordpress.com/2154/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godigg/toniinfocorp.wordpress.com/2154/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/digg/toniinfocorp.wordpress.com/2154/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/goreddit/toniinfocorp.wordpress.com/2154/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/reddit/toniinfocorp.wordpress.com/2154/" /></a> <img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=toniinfocorp.wordpress.com&amp;blog=5787339&amp;post=2154&amp;subd=toniinfocorp&amp;ref=&amp;feed=1" width="1" height="1" />]]></content:encoded>
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		<title>CoDec &#8211; Parte #2</title>
		<link>http://toniinfocorp.wordpress.com/2009/12/12/codec-parte-2/</link>
		<comments>http://toniinfocorp.wordpress.com/2009/12/12/codec-parte-2/#comments</comments>
		<pubDate>Sun, 13 Dec 2009 00:57:57 +0000</pubDate>
		<dc:creator>toniinfo</dc:creator>
				<category><![CDATA[Informações e Dicas]]></category>
		<category><![CDATA[codec]]></category>
		<category><![CDATA[codificador]]></category>
		<category><![CDATA[decodificador]]></category>
		<category><![CDATA[mp3]]></category>
		<category><![CDATA[multimidia]]></category>
		<category><![CDATA[player]]></category>
		<category><![CDATA[som]]></category>
		<category><![CDATA[video]]></category>

		<guid isPermaLink="false">http://toniinfocorp.wordpress.com/?p=2144</guid>
		<description><![CDATA[CoDec - Parte #2<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=toniinfocorp.wordpress.com&amp;blog=5787339&amp;post=2144&amp;subd=toniinfocorp&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<h3>Como surgiram os CoDecs?</h3>
<p style="text-align:justify;"><span style="color:#ffff00;">Antigamente, qualquer arquivo de mídia ocupava MUITO espaço em disco</span>.</p>
<p style="text-align:justify;"><strong>AUDIO:</strong> eles capatavam qualquer mínimo ruído e juntava as informações que eram realmente necessárias.<br />
Neste caso, o arquivo juntava milhares e milhares de zeros e uns desnecessários, por consequência, esta gravação gerava um arquivo enorme&#8230;</p>
<p style="text-align:justify;">Surgiu então o <strong>MP3</strong>, que juntava e compactava as partes úteis do arquivo que era, anteriormente, grande e fazia um novo arquivo. Só que <span style="color:#ffff00;">bem menor</span>.</p>
<p style="text-align:justify;"><a href="http://toniinfocorp.files.wordpress.com/2009/12/10119951.jpg"><img class="aligncenter size-full wp-image-2146" title="multimidia" src="http://toniinfocorp.files.wordpress.com/2009/12/10119951.jpg?w=384&#038;h=219" alt="" width="384" height="219" /></a><br />
<strong>VÍDEO:</strong> não é muito diferente do audio.<br />
Conforme escreveu Pablo Assis num artigo do BaixaKi, &#8220;imagine que em um filme de 800&#215;600, tela cheia em alta resolução, existam 30 imagens diferentes por segundo e cada imagem é feita em média com uns 500.000 pontos. Cada ponto é um byte de informação, então, cada segundo de filme teria uns 15 MB de informação. Dessa forma, em um CD com capacidade para 700 MB caberiam somente 50 segundos de filme.&#8221;</p>
<p style="text-align:justify;">Percebeu-se então que havia a necessidade de <span style="color:#ffff00;">compactação dos arquivos de vídeo</span> também.<br />
Foi aí que surgiu o MPEG. Embora houvesse uma <strong>mínima perda</strong> na qualidade, ainda era possível observar todos os mínimos detalhes do filme.</p>
<h5>(continua&#8230;)</h5>
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		<title>CoDec &#8211; Parte #1</title>
		<link>http://toniinfocorp.wordpress.com/2009/12/06/codec-parte-1/</link>
		<comments>http://toniinfocorp.wordpress.com/2009/12/06/codec-parte-1/#comments</comments>
		<pubDate>Sun, 06 Dec 2009 17:42:57 +0000</pubDate>
		<dc:creator>toniinfo</dc:creator>
				<category><![CDATA[Informações e Dicas]]></category>
		<category><![CDATA[codec]]></category>
		<category><![CDATA[codificador]]></category>
		<category><![CDATA[compactação]]></category>
		<category><![CDATA[decodificador]]></category>
		<category><![CDATA[imagem]]></category>
		<category><![CDATA[multimidia]]></category>
		<category><![CDATA[som]]></category>
		<category><![CDATA[video]]></category>

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		<description><![CDATA[CoDec - Parte #1<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=toniinfocorp.wordpress.com&amp;blog=5787339&amp;post=2139&amp;subd=toniinfocorp&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<h3 style="text-align:justify;"><strong>O que é CoDec?</strong></h3>
<p style="text-align:justify;">CoDecs são programas que <strong>Codificam e Descodificam determinados tipos de mídia</strong>.  O nome é acrônimo de COdificador/DECodificador.</p>
<p><span style="color:#ffff00;">Sabe quando você baixa uma música ou vídeo e não consegue ouvir ou visualizar (ou ambos!)?<br />
Este problema é causado porque seu &#8216;player&#8217; não foi capaz de descodificar aquele determinado arquivo e executá-lo.</span></p>
<p>Se observarmos, veremos que cada arquivo multimídia COMPACTADO possui um formato diferente (ex.: mp3, mp4, rmvb, avi, wmp, divx, flac entre outros tantos).</p>
<p style="text-align:justify;"><a href="http://toniinfocorp.files.wordpress.com/2009/12/multimedia.jpg"><img class="aligncenter size-full wp-image-2140" title="multimedia" src="http://toniinfocorp.files.wordpress.com/2009/12/multimedia.jpg?w=351&#038;h=126" alt="" width="351" height="126" /></a><br />
E nesse caso, seria extremamente inviável ter um <em>player</em> para cada tipo de arquivo. É aí que entram os codecs.</p>
<p><strong>Eles funcionam como interpretadores desses diversos tipos de arquivos.</strong><br />
Com um pacate de codecs instalados em seu computador, você poderá executar (praticamente) todos tipos de arquivos num único <em>player</em>.</p>
<h5>(continua&#8230;)</h5>
<br />Publicado emInformações e Dicas Tagged: codec, codificador, compactação, decodificador, imagem, multimidia, som, video <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gocomments/toniinfocorp.wordpress.com/2139/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/comments/toniinfocorp.wordpress.com/2139/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godelicious/toniinfocorp.wordpress.com/2139/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/delicious/toniinfocorp.wordpress.com/2139/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gofacebook/toniinfocorp.wordpress.com/2139/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/facebook/toniinfocorp.wordpress.com/2139/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gotwitter/toniinfocorp.wordpress.com/2139/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/twitter/toniinfocorp.wordpress.com/2139/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gostumble/toniinfocorp.wordpress.com/2139/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/stumble/toniinfocorp.wordpress.com/2139/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godigg/toniinfocorp.wordpress.com/2139/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/digg/toniinfocorp.wordpress.com/2139/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/goreddit/toniinfocorp.wordpress.com/2139/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/reddit/toniinfocorp.wordpress.com/2139/" /></a> <img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=toniinfocorp.wordpress.com&amp;blog=5787339&amp;post=2139&amp;subd=toniinfocorp&amp;ref=&amp;feed=1" width="1" height="1" />]]></content:encoded>
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