{"id":31514,"date":"2026-02-16T15:37:42","date_gmt":"2026-02-16T14:37:42","guid":{"rendered":"https:\/\/www.md-elektronik.com\/?p=31514"},"modified":"2026-02-16T15:37:49","modified_gmt":"2026-02-16T14:37:49","slug":"a%c2%b2b-automotive-audio-bus","status":"publish","type":"post","link":"https:\/\/www.md-elektronik.com\/cs\/a%c2%b2b-automotive-audio-bus\/","title":{"rendered":"A\u00b2B (Automotive Audio Bus)\u00a0"},"content":{"rendered":"\n<h2><strong>Co je A\u00b2B?<\/strong><\/h2>\n<p>A\u00b2B (Automotive Audio Bus) je digit\u00e1ln\u00ed audio technologie vyvinut\u00e1 spole\u010dnost\u00ed Analog Devices pro pou\u017eit\u00ed ve vozidlech. Umo\u017e\u0148uje p\u0159enos zvuku s n\u00edzkou latenc\u00ed a \u0161\u00ed\u0159kou p\u00e1sma a\u017e 50 Mbit\/s prost\u0159ednictv\u00edm jednoduch\u00e9ho a cenov\u011b efektivn\u00edho kabelov\u00e9ho syst\u00e9mu. Tato technologie v\u00fdrazn\u011b sni\u017euje mno\u017estv\u00ed pot\u0159ebn\u00e9 kabel\u00e1\u017ee a neust\u00e1le se vyv\u00edj\u00ed \u2013 nov\u00e9 verze p\u0159in\u00e1\u0161ej\u00ed vy\u0161\u0161\u00ed p\u0159enosov\u00e9 rychlosti, optimalizovanou dobu zpo\u017ed\u011bn\u00ed a lep\u0161\u00ed integraci do vozidlov\u00fdch syst\u00e9m\u016f.<\/p>\n<h2><strong>Jak A\u00b2B funguje? <\/strong><\/h2>\n<p>A\u00b2B je zalo\u017eena na architektu\u0159e master-slave. Hlavn\u00ed uzel m\u016f\u017ee ovl\u00e1dat a\u017e 16 pod\u0159\u00edzen\u00fdch uzl\u016f v jedn\u00e9 daisy chain topologii. Data se p\u0159en\u00e1\u0161ej\u00ed obousm\u011brn\u011b jedin\u00fdm nest\u00edn\u011bn\u00fdm kroucen\u00fdm p\u00e1rem, kter\u00fd p\u0159en\u00e1\u0161\u00ed zvukov\u00e1 data i \u0159\u00eddic\u00ed sign\u00e1ly a a\u017e 50\u00a0W v\u00fdkonu pro p\u0159ipojen\u00e1 za\u0159\u00edzen\u00ed. Maxim\u00e1ln\u00ed celkov\u00e1 d\u00e9lka s\u00edt\u011b m\u016f\u017ee b\u00fdt a\u017e 15\u00a0metr\u016f v jednotliv\u00fdch uzlech a a\u017e 40\u00a0metr\u016f v daisy chain topologii.<\/p>\n<h2><strong>Jak\u00e9 jsou oblasti pou\u017eit\u00ed A\u00b2B?<\/strong><\/h2>\n<p>V automobilov\u00e9m pr\u016fmyslu hraje A\u00b2B \u00fast\u0159edn\u00ed roli p\u0159i distribuci zvukov\u00fdch sign\u00e1l\u016f ve vozidlech. Uplat\u0148uje se zejm\u00e9na v n\u00e1sleduj\u00edc\u00edch oblastech:<\/p>\n<p><u>Aktivn\u00ed potla\u010den\u00ed hluku (ANC \u2013 Active Noise Cancellation):<br \/><\/u>Efektivn\u011b potla\u010duje hluk z okol\u00ed pro p\u0159\u00edjemn\u011bj\u0161\u00ed z\u00e1\u017eitek z j\u00edzdy.<\/p>\n<p><u>Potla\u010den\u00ed hluku od vozovky (RNC \u2013 Road Noise Cancellation): <\/u><\/p>\n<p>C\u00edlen\u00fdmi zvukov\u00fdmi vlnami opa\u010dn\u00e9 amplitudy potla\u010duje hluk od podvozku.<\/p>\n<p><u>Komunikace ve vozidle (ICC \u2013 In-Car Communication):<\/u><\/p>\n<p>Umo\u017e\u0148uje lep\u0161\u00ed hlasovou komunikaci mezi cestuj\u00edc\u00edmi ve vozidle a podporuje v\u00edce mikrofonn\u00edch pol\u00ed<sup>1<\/sup> ve vozidle.<\/p>\n<p><u>Telematick\u00e9 syst\u00e9my:<\/u><\/p>\n<p>Umo\u017e\u0148uje \u010dist\u00fd p\u0159enos hlasu pro syst\u00e9my t\u00eds\u0148ov\u00e9ho vol\u00e1n\u00ed a dal\u0161\u00ed komunika\u010dn\u00ed slu\u017eby.<\/p>\n<p>A\u00b2B se vyu\u017e\u00edv\u00e1 tak\u00e9 v jin\u00fdch oblastech, nap\u0159\u00edklad v hromadn\u00e9 doprav\u011b (nap\u0159. pro tla\u010d\u00edtka STOP) nebo mimo automobilov\u00fd pr\u016fmysl \u2013 ve leteck\u00e9 technice, profesion\u00e1ln\u00ed audiotechnice, syst\u00e9mech dom\u00e1c\u00edho kina a v oblasti Unified Communications\u00b2.<\/p>\n<h2><strong>Jak\u00e9 m\u00e1 A\u00b2B v\u00fdhody?<\/strong><\/h2>\n<p><u>Men\u0161\u00ed mno\u017estv\u00ed pou\u017eit\u00e9 kabel\u00e1\u017ee:<\/u><\/p>\n<p>U\u0161et\u0159\u00ed a\u017e 75\u00a0% kabel\u00e1\u017ee, co\u017e sni\u017euje hmotnost a n\u00e1klady.<\/p>\n<p><u>Vysok\u00e1 kvalita zvuku:<\/u><\/p>\n<p>Podporuje zvukov\u00e9 sign\u00e1ly s vysok\u00fdm rozli\u0161en\u00edm a minim\u00e1ln\u00ed latenc\u00ed.<\/p>\n<p><u>Robustnost:<\/u><\/p>\n<p>Zaji\u0161\u0165uje spolehliv\u00fd p\u0159enos zvukov\u00fdch sign\u00e1l\u016f i v n\u00e1ro\u010dn\u00fdch elektromagnetick\u00fdch prost\u0159ed\u00edch (EMC).<\/p>\n<p><u>Snadn\u00e1 integrace:<\/u><\/p>\n<p>Nevy\u017eaduje \u017e\u00e1dn\u00fd dal\u0161\u00ed softwarov\u00fd overhead, co\u017e zkracuje dobu v\u00fdvoje a sni\u017euje n\u00e1klady.<\/p>\n<p><u>Flexibilita:<\/u><\/p>\n<p>\u0160k\u00e1lovateln\u00e1 technologie pou\u017eiteln\u00e1 v r\u016fzn\u00fdch odv\u011btv\u00edch a aplikac\u00edch.<\/p>\n<p>Kombinac\u00ed vysok\u00e9 \u0161\u00ed\u0159ky p\u00e1sma, n\u00edzk\u00e9 latence a sn\u00ed\u017een\u00fdch n\u00e1rok\u016f na kabel\u00e1\u017e A\u00b2B v\u00fdznamn\u011b p\u0159isp\u00edv\u00e1 k optimalizaci p\u0159enosu zvuku ve vozidlech a dal\u0161\u00edch aplikac\u00edch.<\/p>\n<p><span style=\"font-size: 90%;\"><sup>1<\/sup> <strong>Mikrofonn\u00ed pole<\/strong> jsou sestavy n\u011bkolika mikrofon\u016f, kter\u00e9 umo\u017e\u0148uj\u00ed p\u0159esnou lokalizaci a potla\u010den\u00ed zdroj\u016f \u0161umu zachycen\u00edm a zpracov\u00e1n\u00edm zvukov\u00fdch sign\u00e1l\u016f.<\/span><\/p>\n<p><span style=\"font-size: 90%;\"><sup>2 <\/sup><strong>Unified Communications <\/strong>znamen\u00e1 integraci r\u016fzn\u00fdch komunika\u010dn\u00edch slu\u017eeb, jako je hlas, video a zas\u00edl\u00e1n\u00ed zpr\u00e1v, do standardizovan\u00e9 platformy s c\u00edlem zlep\u0161it spolupr\u00e1ci a efektivitu v organizaci<\/span><\/p>\n<div class=\"message-box relative\" style=\"padding-top:30px;padding-bottom:30px;\"><div class=\"message-box-bg-image bg-fill fill\" ><\/div><div class=\"message-box-bg-overlay bg-fill fill\" style=\"background-color:rgb(245, 245, 247);\"><\/div><div class=\"container relative\"><div class=\"inner last-reset\">\n\n<div class=\"row align-equal align-center\"  id=\"row-1496650667\">\n\n\n\t<div id=\"col-92047240\" class=\"col medium-3 small-12 large-3\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div id=\"gap-1294890553\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-1294890553 {\n  padding-top: 10px;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_104707369\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img decoding=\"async\" width=\"1020\" height=\"1020\" src=\"https:\/\/www.md-elektronik.com\/wp-content\/uploads\/2023\/02\/DSC00539-Hartl-Tobias-high_qudr-1024x1024.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.md-elektronik.com\/wp-content\/uploads\/2023\/02\/DSC00539-Hartl-Tobias-high_qudr-1024x1024.jpg 1024w, https:\/\/www.md-elektronik.com\/wp-content\/uploads\/2023\/02\/DSC00539-Hartl-Tobias-high_qudr-300x300.jpg 300w, https:\/\/www.md-elektronik.com\/wp-content\/uploads\/2023\/02\/DSC00539-Hartl-Tobias-high_qudr-150x150.jpg 150w, https:\/\/www.md-elektronik.com\/wp-content\/uploads\/2023\/02\/DSC00539-Hartl-Tobias-high_qudr-768x768.jpg 768w, https:\/\/www.md-elektronik.com\/wp-content\/uploads\/2023\/02\/DSC00539-Hartl-Tobias-high_qudr.jpg 1440w\" sizes=\"(max-width: 1020px) 100vw, 1020px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_104707369 {\n  width: 99%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-871648936\" class=\"col medium-9 small-12 large-9\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<p><span style=\"font-size: 130%;\"><strong>Tobias Hartl <\/strong><\/span><\/p>\n<p>Tobias Hartl je sou\u010d\u00e1st\u00ed technick\u00e9ho produktov\u00e9ho managementu v oblasti Multi Core Cables a ve spole\u010dnosti MD pracuje ji\u017e od roku 2019. Svou kari\u00e9ru zde zah\u00e1jil jako aplika\u010dn\u00ed in\u017een\u00fdr pro mezin\u00e1rodn\u00ed z\u00e1kazn\u00edky. P\u0159ed n\u00e1stupem do MD z\u00edsk\u00e1val \u0161est let cenn\u00e9 zku\u0161enosti v oboru mobile media headunit, kter\u00e9 \u00fasp\u011b\u0161n\u011b uplat\u0148uje ve sv\u00e9 ka\u017edodenn\u00ed pr\u00e1ci. Pro Tobiase je velmi motivuj\u00edc\u00ed kontakt s glob\u00e1ln\u00edmi z\u00e1kazn\u00edky a zav\u00e1d\u011bn\u00ed nov\u00fdch technologi\u00ed ve spolupr\u00e1ci s mezin\u00e1rodn\u00edm t\u00fdmem.<\/p>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\n<style>\n#row-1496650667 > .col > .col-inner {\n  padding: 0 0px 0px 0px;\n}\n<\/style>\n<\/div>\n\n<\/div><\/div><\/div>\n\n\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":23,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[102],"tags":[],"class_list":["post-31514","post","type-post","status-publish","format-standard","hentry","category-glosar"],"_links":{"self":[{"href":"https:\/\/www.md-elektronik.com\/cs\/wp-json\/wp\/v2\/posts\/31514","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.md-elektronik.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.md-elektronik.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.md-elektronik.com\/cs\/wp-json\/wp\/v2\/users\/23"}],"replies":[{"embeddable":true,"href":"https:\/\/www.md-elektronik.com\/cs\/wp-json\/wp\/v2\/comments?post=31514"}],"version-history":[{"count":2,"href":"https:\/\/www.md-elektronik.com\/cs\/wp-json\/wp\/v2\/posts\/31514\/revisions"}],"predecessor-version":[{"id":31516,"href":"https:\/\/www.md-elektronik.com\/cs\/wp-json\/wp\/v2\/posts\/31514\/revisions\/31516"}],"wp:attachment":[{"href":"https:\/\/www.md-elektronik.com\/cs\/wp-json\/wp\/v2\/media?parent=31514"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.md-elektronik.com\/cs\/wp-json\/wp\/v2\/categories?post=31514"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.md-elektronik.com\/cs\/wp-json\/wp\/v2\/tags?post=31514"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}