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</tr>             <tr>                <td background="images/fond_gauche_abc.gif" width="8"><img src="images/transparentPixel.gif" width="8" height="8"></td>               <td class="textegris" bgcolor="#FFFFFF" valign="top"><br clear=ALL> <table cellspacing=1 cols=1 cellpadding=5 bgcolor=#ffffff  border=0 width=379> <tbody><tr bgcolor=#FF6600><td class=normblancgros width=284> <img src=images/fleche_abc.gif width=35 height=18 align=left> CODEC</td></tr><tr><td class=textegris >  <table cellspacing=1 cols=1 cellpadding=5 bgcolor=#ffffff  border=0 width=100% > <tr><td class="textegris" bgcolor=#FF6600><span class="norm">Dfinition</span></td></tr><tr><td class="textegris" > Diminutif  de <B>CO</b>mpression / <B>DEC</b>ompression. Permet de compresser, via un logiciel, une squence audiovido. Ce fichier peut ensuite tre lu sur la plupart des ordinateurs multimdias.  <p>Le CODEC peut tre effectu par un lment matriel, logiciel, ou les deux  la fois.</td></tr></table><table cellspacing=1 cols=1 cellpadding=5 bgcolor=#ffffff  border=0 width=100% > <tr><td class="textegris" bgcolor=#FF6600><span class="norm">Note technique</span></td></tr><tr><td class="textegris" > Le principe du Codec est de coder les informations redondantes. Ces dernires peuvent tre de deux types : spatial ou temporel. Une fois cod, le dcodeur devient ncessaire  la visualisation. </td></tr></table><table cellspacing=1 cols=1 cellpadding=5 bgcolor=#ffffff  border=0 width=100%><tbody><tr bgcolor=#FF6600> <td class=textegris ><span class=norm>Fournisseurs (logiciels)</span></td></tr><tr><td class=textegris > <table cols=5 width=100% border=0 cellpadding=5 cellspacing=1 bgcolor=#FF6600> <tbody class=textegris>  <tr class=norm bgcolor=#FFCC00>  <td align=middle valign=top class=norm><b>Produit</b></td> <td align=center width=5% class=norm valign=top<b>PC</b></td> <td align=center width=5% class=norm valign=top><b>Mac</b></td> <td align=center width=5%  class=norm valign=top><b>Linux</b></td> <td align=center width=10% class=norm valign=top><b>Langue</b></td> </tr> <tr bgcolor=#FFFFFF> <td class=textegris valign=top><a target=_new href=http://www.jpg.com/products/picreg.html class=y>PICVideo  </a> (<a target=_new  href=http://www.jpg.com/ class=y>Pegasus</a>)</td> <td align=center class=textegris valign=top bgcolor=#FFFFFF><img height=8 src="images/crochet.gif"   width=8 NOSAVE></td> <td align=center class=textegris valign=top bgcolor=#FFFFFF><img src=images/transparentpixel.gif witdh=2 height=2></td> <td align=center class=textegris valign=top bgcolor=#FFFFFF><img src=images/transparentpixel.gif witdh=2 height=2></td> <td class=textegris valign=top align=center bgcolor=#FFFFFF>Anglais<br></td> </tr> <tr bgcolor=#FFFFFF> <td class=textegris valign=top><a target=_new href=http://www.4i2i.com/products.htm class=y>CODEC SOFTWARE  </a> (<a target=_new  href=http://www.4i2i.com class=y>4i2i Communications Ltd</a>)</td> <td align=center class=textegris valign=top bgcolor=#FFFFFF><img height=8 src="images/crochet.gif"   width=8 NOSAVE></td> <td align=center class=textegris valign=top bgcolor=#FFFFFF><img src=images/transparentpixel.gif witdh=2 height=2></td> <td align=center class=textegris valign=top bgcolor=#FFFFFF><img src=images/transparentpixel.gif witdh=2 height=2></td> <td class=textegris valign=top align=center bgcolor=#FFFFFF>Anglais<br></td> </tr> <tr bgcolor=#FFFFFF> <td class=textegris valign=top><a target=_new href=http://www.symbic.com/product.html class=y>Voicejam  </a> (<a target=_new  href=http://www.symbic.com class=y>Symbic</a>)</td> <td align=center class=textegris valign=top bgcolor=#FFFFFF><img height=8 src="images/crochet.gif"   width=8 NOSAVE></td> <td align=center class=textegris valign=top bgcolor=#FFFFFF><img height=8 src="images/crochet.gif"   width=8 NOSAVE></td> <td align=center class=textegris valign=top bgcolor=#FFFFFF><img src=images/transparentpixel.gif witdh=2 height=2></td> <td class=textegris valign=top align=center bgcolor=#FFFFFF>Anglais<br></td> </tr> <tr bgcolor=#FFFFFF> <td class=textegris valign=top><a target=_new href=http://www.pmatrix.com/ class=y>Paradigm Matrix  </a> (<a target=_new  href=http://www.pmatrix.com class=y>Paradigm Matrix</a>)</td> <td align=center class=textegris valign=top bgcolor=#FFFFFF><img height=8 src="images/crochet.gif"   width=8 NOSAVE></td> <td align=center class=textegris valign=top bgcolor=#FFFFFF><img src=images/transparentpixel.gif witdh=2 height=2></td> <td align=center class=textegris valign=top bgcolor=#FFFFFF><img src=images/transparentpixel.gif witdh=2 height=2></td> <td class=textegris valign=top align=center bgcolor=#FFFFFF>Anglais<br></td> </tr> <tr bgcolor=#FFFFFF> <td class=textegris valign=top><a target=_new href=http://www.apple.com/fr/quicktime/ class=y>Quicktime  </a> (<a target=_new  href=http://www.apple.com/ca/fr/ class=y>Apple Computer</a>)</td> <td align=center class=textegris valign=top bgcolor=#FFFFFF><img height=8 src="images/crochet.gif"   width=8 NOSAVE></td> <td align=center class=textegris valign=top bgcolor=#FFFFFF><img height=8 src="images/crochet.gif"   width=8 NOSAVE></td> <td align=center class=textegris valign=top bgcolor=#FFFFFF><img src=images/transparentpixel.gif witdh=2 height=2></td> <td class=textegris valign=top align=center bgcolor=#FFFFFF>Franais<br></td> </tr> <tr bgcolor=#FFFFFF> <td class=textegris valign=top><a target=_new href=http://www.ati.com/ class=y>Rage Theater  </a> (<a target=_new  href=http://www.ati.com/ class=y>ATI</a>)</td> <td align=center class=textegris valign=top bgcolor=#FFFFFF><img height=8 src="images/crochet.gif"   width=8 NOSAVE></td> <td align=center class=textegris valign=top bgcolor=#FFFFFF><img height=8 src="images/crochet.gif"   width=8 NOSAVE></td> <td align=center class=textegris valign=top bgcolor=#FFFFFF><img src=images/transparentpixel.gif witdh=2 height=2></td> <td class=textegris valign=top align=center bgcolor=#FFFFFF>Anglais<br></td> </tr> </tbody></table></td></tr></tbody></table> <table cellspacing=1 cols=1 cellpadding=5 bgcolor=#ffffff  border=0 width=100%> <tbody><tr bgcolor=#FF6600><td class=textegris><span class=norm>Illustrations</span></td> </tr><tr><td class=textegris ><center> <BR> <center> <IMG SRC="http://abc.ntic.org/images_fiches/multipoint.gif" ALT="GIF"> </center>                  </center></td></tr></tbody></table> <table cellspacing=1 cols=1 cellpadding=5 bgcolor=#ffffff  border=0 width=100%> <tbody><tr bgcolor=#FF6600><td class=textegris ><span class=norm>Liens </span></td> </tr><tr><td class=textegris > <ul><li><a target=_new href="http://www.webartz.com/fourcc/" class="y">The Almost Definitive FOURCC Definition List</a> (05 novembre 2001)</li><li><a target=_new href="http://www.icanstream.tv/CodecCentral/index.html" class="y">The CODEC Central</a> (20 juillet 2001)</li><li><a target=_new href="http://www.cultivate-int.org/issue5/jam/#ref-01" class="y">Introductory Guide to Audio and Video Encoding</a> (09 octobre 2001)</li><li><a target=_new href="http://www.mosarca.com/MMINFO/MPEGMED.htm" class="y">Mediamatics: des codec logiciels MPEG-1 (Article)</a> (03 septembre 1998)</li></ul></td></tr></tbody></table> <table cellspacing=1 cols=1 cellpadding=5 bgcolor=#ffffff  border=0 width=100%> <tbody><tr bgcolor=#FF6600><td class=norm ><b>Termes relis</b> </td> </tr><tr><td class=textegris height=89> <a href="http://www.abc.ntic.org/fiche.php?q_id=21" class="y">Saisie du son/audio</a><br><a href="http://www.abc.ntic.org/fiche.php?q_id=23" class="y">chantillonnage</a><br><a href="http://www.abc.ntic.org/fiche.php?q_id=45" class="y">Numrisation / acquisition</a><br><a href="http://www.abc.ntic.org/fiche.php?q_id=67" class="y">Carte d'acquisition du son</a><br><a href="http://www.abc.ntic.org/fiche.php?q_id=70" class="y">Camscope numrique</a><br><a href="http://www.abc.ntic.org/fiche.php?q_id=88" class="y">Vido numrique : Types de fichiers</a><br><a href="http://www.abc.ntic.org/fiche.php?q_id=91" class="y">QuickTime</a><br><a href="http://www.abc.ntic.org/fiche.php?q_id=100" class="y">Vidoconfrence et visioconfrence</a><br><a href="http://www.abc.ntic.org/fiche.php?q_id=127" class="y">Montage audio / Son numrique</a><br></td></tr></tbody></table> 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