{"id":6031,"date":"2016-08-08T07:54:10","date_gmt":"2016-08-08T12:54:10","guid":{"rendered":"https:\/\/www.servimatango.com\/blog\/?p=6031"},"modified":"2019-06-11T09:00:27","modified_gmt":"2019-06-11T14:00:27","slug":"tipos-de-codecs","status":"publish","type":"post","link":"https:\/\/servervoip.com\/blog\/tipos-de-codecs\/","title":{"rendered":"Tipos de codecs"},"content":{"rendered":"<p><strong>C\u00f3decs (Codificador\/decodificador). <\/strong><\/p>\n<p>La comunicaci\u00f3n a trav\u00e9s de la voz es anal\u00f3gica como ya se indic\u00f3 ,  en cambio la red  de datos es digital.  Ya se describi\u00f3 el proceso  muestreo &#8211; cuantificaci\u00f3n &#8211; codificaci\u00f3n  para transformar se\u00f1ale s anal\u00f3gicas a digital es ,  el cual  se  ejecuta e n un  dispositivo  denominado  codificador\/decodificador  o  c\u00f3dec,  el cual  comprime la se rie de da tos y  permite la cancelaci\u00f3n del eco. Los c\u00f3decs brindan una  salida  consistente en  una  se rie  de datos que se  acomodan en paquetes IP y se  env\u00edan por  la red a su destino,  donde es necesario aplicar  los mismos  protocolos e indicadores comunes para  ejecutar  el proceso inverso para evitar que se reciba  una comunicaci\u00f3n  incoherente .  Algunos c\u00f3decs utilizan la compresi\u00f3n y\/o la supresi\u00f3n del silencio para poder as\u00ed  economizar ancho de banda  en la transmisi\u00f3n. Este proceso consiste en no enviar los  paquetes de la voz entre silencios en conversaciones humana  (Huidobro &#038; Rold\u00e1n,  2006) (P\u00e9rez, 2013) .  <\/p>\n<p>\n<div id=\"rev_slider_3_1_wrapper\" class=\"rev_slider_wrapper fullwidthbanner-container\" style=\"float:left;background-color:#E9E9E9;padding:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;\">\n<!-- START REVOLUTION SLIDER 5.0.9 auto mode -->\n\t<div id=\"rev_slider_3_1\" class=\"rev_slider fullwidthabanner\" style=\"display:none;\" data-version=\"5.0.9\">\n<ul>\t<!-- SLIDE  -->\n\t<li data-index=\"rs-28\" data-transition=\"random\" data-slotamount=\"7\"  data-easein=\"default\" data-easeout=\"default\" data-masterspeed=\"300\"  data-thumb=\"\"  data-rotate=\"0\"  data-saveperformance=\"off\"  class=\"voipswitch videos subtitulos\" id=\"voipswitch videos subtitulos\" voipswitch videos subtitulos data-title=\"SubtitulosTexto\" data-description=\"\">\n\t\t<!-- MAIN IMAGE -->\n\t\t<img src=\"https:\/\/servervoip.com\/blog\/wp-content\/plugins\/revslider\/admin\/assets\/images\/dummy.png\"  alt=\"\"  width=\"879\" height=\"51\" data-lazyload=\"https:\/\/servervoip.com\/blog\/wp-content\/plugins\/revslider\/admin\/assets\/images\/transparent.png\" data-bgposition=\"center top\" data-bgfit=\"cover\" data-bgrepeat=\"no-repeat\" class=\"rev-slidebg\" data-no-retina>\n\t\t<!-- LAYERS -->\n\n\t\t<!-- LAYER NR. 1 -->\n\t\t<div class=\"tp-caption   tp-resizeme\" \n\t\t\t id=\"slide-28-layer-2\" \n\t\t\t data-x=\"\" \n\t\t\t data-y=\"1\" \n\t\t\t\t\t\tdata-width=\"['none','none','none','none']\"\n\t\t\tdata-height=\"['none','none','none','none']\"\n\t\t\tdata-transform_idle=\"o:1;\"\n \n\t\t\t data-transform_in=\"opacity:0;s:300;e:Power2.easeInOut;\" \n\t\t\t data-transform_out=\"opacity:0;s:300;s:300;\" \n\t\t\tdata-start=\"500\" \n\t\t\tdata-responsive_offset=\"on\" \n\n\t\t\t\n\t\t\tstyle=\"z-index: 5;\">\n\t\t\t\t<div class=\"rs-looped disabled\" ><img src=\"https:\/\/servervoip.com\/blog\/wp-content\/plugins\/revslider\/admin\/assets\/images\/dummy.png\" alt=\"\" data-ww=\"879\" data-hh=\"51\" data-lazyload=\"https:\/\/www.servervoip.com\/blog\/wp-content\/uploads\/2015\/10\/fondo-en-degradado-con-signod-copia.jpg\" data-no-retina> \n\t\t\t\t<\/div>\n\t\t<\/div>\n\n\t\t<!-- LAYER NR. 2 -->\n\t\t<div class=\"tp-caption mediumbgorange   tp-resizeme\" \n\t\t\t id=\"slide-28-layer-1\" \n\t\t\t data-x=\"6\" \n\t\t\t data-y=\"5\" \n\t\t\t\t\t\tdata-width=\"['653']\"\n\t\t\tdata-height=\"['41']\"\n\t\t\tdata-transform_idle=\"o:1;\"\n \n\t\t\t data-transform_in=\"opacity:0;s:300;e:Power3.easeInOut;\" \n\t\t\t data-transform_out=\"auto:auto;s:300;\" \n\t\t\tdata-start=\"500\" \n\t\t\tdata-splitin=\"none\" \n\t\t\tdata-splitout=\"none\" \n\t\t\tdata-responsive_offset=\"on\" \n\n\t\t\t\n\t\t\tstyle=\"z-index: 6; 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style=\"display:none;\" data-version=\"5.0.9\">\n<ul>\t<!-- SLIDE  -->\n\t<li data-index=\"rs-15\" data-transition=\"random\" data-slotamount=\"7\"  data-easein=\"default\" data-easeout=\"default\" data-masterspeed=\"300\"  data-link=\"http:\/\/www.servervoip.com\/voipswitch-comprar.php?server=50_promo\"  data-target=\"_blank\"  data-slideindex=\"back\" data-thumb=\"https:\/\/servervoip.com\/blog\/wp-content\/uploads\/2015\/10\/fondo-slider-con-letras31-100x50.jpg\"  data-rotate=\"0\"  data-saveperformance=\"off\"  data-title=\"Slide\" data-description=\"\">\n\t\t<!-- MAIN IMAGE -->\n\t\t<img src=\"https:\/\/servervoip.com\/blog\/wp-content\/plugins\/revslider\/admin\/assets\/images\/dummy.png\"  alt=\"\"  width=\"879\" height=\"262\" data-lazyload=\"https:\/\/servervoip.com\/blog\/wp-content\/uploads\/2015\/10\/fondo-slider-con-letras31.jpg\" data-bgposition=\"center top\" data-bgfit=\"cover\" data-bgrepeat=\"no-repeat\" class=\"rev-slidebg\" data-no-retina>\n\t\t<!-- LAYERS 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htmlDiv = document.getElementById('rs-plugin-settings-inline-css');\r\n\t\t\t\t\tif(htmlDiv) {\r\n\t\t\t\t\t\thtmlDiv.innerHTML = htmlDiv.innerHTML + htmlDivCss;\r\n\t\t\t\t\t}\r\n\t\t\t\t\telse{\r\n\t\t\t\t\t\tvar htmlDiv = document.createElement('div');\r\n\t\t\t\t\t\thtmlDiv.innerHTML = '<style>' + htmlDivCss + '<\/style>';\r\n\t\t\t\t\t\tdocument.getElementsByTagName('head')[0].appendChild(htmlDiv.childNodes[0]);\r\n\t\t\t\t\t}\r\n\t\t\t\t  <\/script>\r\n\t\t\t\t<\/div><!-- END REVOLUTION SLIDER --><br \/>\n&nbsp;<\/p>\n<hr \/>\n<p><strong>Tipos de c\u00f3decs.<\/strong><\/p>\n<p><strong>1. Codificadores de Forma de Onda: <\/strong><\/p>\n<p>Reproducen la forma de onda de la voz  lo m\u00e1s e xactamente posible, incluyendo el ruido de fondo y todo tipo de se\u00f1al que  llegue a la entrada. Es un procedimiento de alta calidad en el muestreo, sin embargo  este tipo de codificador opera con una raz\u00f3n de muestreo muy alta por lo que  consumen demasiado a ncho de banda.<\/p>\n<p><strong>2. Vocoders: <\/strong><\/p>\n<p>\u00c9stos no reproducen la forma de onda original. El codificador  construye un juego de par\u00e1metros que son enviados al receptor para manejar un  modelo de producci\u00f3n de voz. Los c\u00f3digos de predicci\u00f3n lineal (LPC) se utilizan  para der ivar par\u00e1metros de un filtro digital de tiempo variable. Este filtro modela la  salida de la voz. La calidad de los vocoders a\u00fan no es lo suficientemente buena para  ser usados en los sistemas telef\u00f3nicos. <\/p>\n<p><strong>3. H\u00edbridos:<\/strong><\/p>\n<p> Los c\u00f3decs h\u00edbridos son los que prevalecen en la telefon\u00eda IP, ya  que combinan las caracter\u00edsticas atractivas de los codificadores de forma de onda con  las de los vocoders. Tienen un ancho de banda peque\u00f1o (de 4 &#8211; 16 Kbit\/s). Estos  c\u00f3decs utilizan t\u00e9cnicas de predicci\u00f3n lineal y an\u00e1lisis por s\u00edntesis, LPAS ( Linear  Prediction Analysis by Syntesis ). Los cuales se relacionan a continuaci\u00f3n  (Huidobro  &#038; Rold\u00e1n, 2006) .<br \/>\nEn la siguiente tabla se presenta varios protocolos  de codificaci\u00f3n  difundidos  por la  ITU  ( International  Telecommunication Union ) y puede verse que  la calidad es menor a  mayor compresi\u00f3n y  adem\u00e1s  se necesita mayor  capacidad en el  CPU ( Central  Processing Unit )  (P\u00e9rez, 2013) .  <\/p>\n<div id=\"attachment_6032\" style=\"width: 678px\" class=\"wp-caption aligncenter\"><img aria-describedby=\"caption-attachment-6032\" loading=\"lazy\" src=\"https:\/\/www.servimatango.com\/blog\/wp-content\/uploads\/Tipos-de-codecs.png\" alt=\"Tipos de codecs\" width=\"668\" height=\"396\" class=\"size-full wp-image-6032\" srcset=\"https:\/\/servervoip.com\/blog\/wp-content\/uploads\/Tipos-de-codecs.png 668w, https:\/\/servervoip.com\/blog\/wp-content\/uploads\/Tipos-de-codecs-150x89.png 150w, https:\/\/servervoip.com\/blog\/wp-content\/uploads\/Tipos-de-codecs-300x178.png 300w\" sizes=\"(max-width: 668px) 100vw, 668px\" \/><p id=\"caption-attachment-6032\" class=\"wp-caption-text\">Tipos de codecs<\/p><\/div>\n<p>Tomado de:<br \/>\n[1] V. Castillo, \u201cDise\u00f1o de un laboratorio virtual de telefon\u00eda IP utilizando Elastix,\u201d M.S. T\u00e9sis, Sistema de Postgrado., Universidad Cat\u00f3lica de Santiago de Guayaquil., Guayaquil, Ecuador, 2015<\/p>\n<p>Fuente:<br \/>\nhttp:\/\/repositorio.ucsg.edu.ec\/bitstream\/3317\/3164\/1\/T-UCSG-POS-MTEL-34.pdf<\/p>\n<h2>Telefon\u00eda VoIP con SoftSwitch<\/h2>\n<p><strong>ServerVoIP<\/strong> te proporciona todas las herramientas necesarias para que crees y desarrolles <strong>tu negocio de comunicaci\u00f3n por internet.<\/strong><\/p>\n<p>Pertenece al Selecto Grupo de Emprendedores que decidieron cambiar su vida invirtiendo en un <strong>Server con ServerVoIP.<\/strong><\/p>\n<p><a href=\"http:\/\/www.servervoip.com\/voipswitch-pagos\"><img loading=\"lazy\" src=\"https:\/\/www.servimatango.com\/blog\/wp-content\/uploads\/2015\/08\/tarjeta1-292x300.png\" alt=\"empresario\" width=\"292\" height=\"300\" class=\"aligncenter size-medium wp-image-4092\" \/><\/a><br \/>\n[st_button button_text=\u00bb SOLICITA TU SERVER AHORA \u25ba\u00bb button_type_url=\u00bbhttp:\/\/www.servervoip.com\/voipswitch-comprar.php?server=50_promo\u00bb open_in=\u00bbnew_window\u00bb icon=\u00bbfa fa-shopping-cart\u00bb button_alignment=\u00bbcenter\u00bb button_margin_top=\u00bb-50&#8243; button_margin_bottom=\u00bb-20&#8243; button_size=\u00bbbtn-lg\u00bb button_color=\u00bbbtn-blue\u00bb appearing_animation=\u00bbfade_in\u00bb wrapper_padding_top=\u00bb0&#8243; wrapper_padding_left=\u00bb0&#8243; wrapper_padding_bottom=\u00bb0&#8243; wrapper_padding_right=\u00bb0&#8243; wrapper_bg_opacity_slider=\u00bb\u00bb id_wrapper=\u00bbelm_5c828b6146c38&#8243; ][\/st_button]<br \/>\n&nbsp;<\/p>\n<p><strong>ServerVoip <\/strong>presenta el mejor server fisico dedicado para telefonia voip que incluye el software de telefon\u00eda ip \u00abVoipSwitch\u00bb especial para voz sobre ip.<\/p>\n<p><strong>VoipSwitch <\/strong>es la plataforma ideal para que sin necesidad de conocimientos t\u00e9cnicos crees tu propia empresa de Telefon\u00eda IP VoIP y encuentres una forma de ganar DINERO en la red siendo carrier de telefon\u00eda sobre Ip (Voip). <\/p>\n<p>Te brindamos todas las herramientas para que est\u00e9s al nivel de las grandes empresas y negocios; puedas obsequiar llamadas gratis como estrategia de marketing en fidelizaci\u00f3n a tus clientes \/ free entre tus clientes; el servidor VoIP te permite utilizar m\u00faltiples proveedores como nosotros tenemos <a href=\"http:\/\/www.alosip.com\/\" target=\"_blank\"  rel=\"noopener noreferrer\">www.alosip.com.<\/a>  (carrier \/ routes) para un mismo destino, vender terminaci\u00f3n (wholesale), clientes finales (retail), etc.<\/p>\n<p>El software te proporciona todo lo que necesitas; sistema llave en mano: para crear tu empresa de telefon\u00eda IP (VoIP) bajo tu propio nombre o marca. M\u00e1s informaci\u00f3n en  <a href=\"http:\/\/marcablanca.servervoip.com\/\" target=\"_blank\" rel=\"noopener noreferrer\">marcaBlanca.servervoip.com<\/a><\/p>\n<p>Para que CREES y DESARROLLES tu propia empresa de telefonia por internet, revisa m\u00e1s detalles en <a href=\"http:\/\/www.servervoip.com\/voipswitch\/\" >VoIPSwitch<\/a><\/p>\n<hr \/>\n<h1 style=\"text-align: center;\">\u00bfQuieres Emprender por Internet?<\/h1>\n<h3 style=\"text-align: center;\">\u00abAhora Trabajar desde la Comodidad de tu Casa y Ganar Dinero por Internet&#8230; Nunca Hab\u00eda Sido tan F\u00e1cil, R\u00e1pido y con RESULTADOS Impresionantes\u00bb<\/h3>\n<p style=\"text-align: center;\">Descubre el NEGOCIO Perfecto y convi\u00e9rtete en un EMPRESARIO de \u00c9xito creando y desarrollando tu Propia Empresa de Telefon\u00eda por Internet. <strong>Suscr\u00edbete y RECIBE FREE<\/strong>:<\/p>\n<h2 style=\"text-align: center;\">\u00a1Sie7e Poderosas Razones Que Tiene el EMPRENDEDOR Exitoso para Crear su Propia Empresa de Telefon\u00eda por Internet VoIP!&#8230;<\/h2>\n<p><img loading=\"lazy\" class=\"aligncenter wp-image-1229 size-medium\" src=\"http:\/\/servimatango.com\/negocios-rentables\/wp-content\/uploads\/2015\/07\/libro-server-voip-241x300.png\" alt=\"libro server voip\" width=\"241\" height=\"300\" \/><br \/>\n[st_accordion div_margin_bottom=\u00bb15&#8243; initial_open=\u00bb0&#8243; multi_open=\u00bbyes\u00bb wrapper_padding_top=\u00bb0&#8243; wrapper_padding_left=\u00bb0&#8243; wrapper_padding_bottom=\u00bb0&#8243; wrapper_padding_right=\u00bb0&#8243; wrapper_bg_opacity_slider=\u00bb\u00bb wrapper_bg_opacity=\u00bb50&#8243; wrapper_border_style=\u00bboutset\u00bb wrapper_rounded_topleft=\u00bb3&#8243; id_wrapper=\u00bbelm_5c828b0bd3fa6&#8243; ][st_item_accordion heading=\u00bb<img class=aligncenter src=http:\/\/servimatango.com\/negocios-rentables\/wp-content\/uploads\/2015\/07\/Boton-descarga-reporte.gif alt=Reporte width=500 height=145 \/>\u00bb id_wrapper=\u00bbelm_5c828b0bd3f58&#8243; ]<center><script type=\"text\/javascript\" src=\"http:\/\/app.getresponse.com\/view_webform.js?wid=10619501&#038;u=kSvx\"><\/script><\/center>[\/st_item_accordion][\/st_accordion]<\/p>\n<p><a href=\"https:\/\/www.servimatango.com\/blog\/bancos-en-ecuador\/\">Bancos en Ecuador para Alquilar un VoIPSwitch Server<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u00f3decs (Codificador\/decodificador). La comunicaci\u00f3n a trav\u00e9s de la voz es anal\u00f3gica como ya se indic\u00f3 , en cambio la red de datos es digital. Ya se describi\u00f3 el proceso muestreo &#8211; cuantificaci\u00f3n &#8211; codificaci\u00f3n para transformar se\u00f1ale s anal\u00f3gicas a digital es , el cual se ejecuta e n un dispositivo denominado codificador\/decodificador o c\u00f3dec,&#8230;<\/p>\n<p><a class=\"excerpt-read-more btn btn-primary\" href=\"https:\/\/servervoip.com\/blog\/tipos-de-codecs\/\" title=\"ReadTipos de codecs\">Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":6033,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"video","meta":[],"categories":[13],"tags":[1520,1521,1522,133,134,1523,1518,1519],"_links":{"self":[{"href":"https:\/\/servervoip.com\/blog\/wp-json\/wp\/v2\/posts\/6031"}],"collection":[{"href":"https:\/\/servervoip.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/servervoip.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/servervoip.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/servervoip.com\/blog\/wp-json\/wp\/v2\/comments?post=6031"}],"version-history":[{"count":0,"href":"https:\/\/servervoip.com\/blog\/wp-json\/wp\/v2\/posts\/6031\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/servervoip.com\/blog\/wp-json\/wp\/v2\/media\/6033"}],"wp:attachment":[{"href":"https:\/\/servervoip.com\/blog\/wp-json\/wp\/v2\/media?parent=6031"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/servervoip.com\/blog\/wp-json\/wp\/v2\/categories?post=6031"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/servervoip.com\/blog\/wp-json\/wp\/v2\/tags?post=6031"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}