[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.checkit.cz\/proc-jsou-digitalni-zvuky-tak-otravne\/#Article","mainEntityOfPage":"https:\/\/www.checkit.cz\/proc-jsou-digitalni-zvuky-tak-otravne\/","headline":"Pro\u010d jsou digit\u00e1ln\u00ed zvuky tak otravn\u00e9?","name":"Pro\u010d jsou digit\u00e1ln\u00ed zvuky tak otravn\u00e9?","description":"Jedn\u00edm z nejb\u011b\u017en\u011bj\u0161\u00edch zvuk\u016f v modern\u00edm sv\u011bt\u011b je p\u00edpnut\u00ed. Z mikrovlnky, mobiln\u00edch telefon\u016f, po\u010d\u00edta\u010d\u016f a z\u00e1lohovac\u00edch voz\u00edk\u016f n\u00e1m tato vysok\u00e1 v\u00fdstraha zn\u00ed z ka\u017ed\u00e9ho sm\u011bru. Ale jak se to d\u011bl\u00e1, a pro\u010d to tak roste? \u00a0 Um\u011bl\u00e9 zvuky se obvykle vyr\u00e1b\u011bj\u00ed pomoc\u00ed jednoho ze dvou za\u0159\u00edzen\u00ed \u2013 ku\u017eelov\u00e9ho a magnetick\u00e9ho reproduktoru, kter\u00fd zesiluje zvuk z vibruj\u00edc\u00edho magnetu nebo z piezoelektrick\u00e9ho […]","datePublished":"2020-09-15","dateModified":"2023-05-26","author":{"@type":"Person","@id":"https:\/\/www.checkit.cz\/author\/devene\/#Person","name":"devene","url":"https:\/\/www.checkit.cz\/author\/devene\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/b74f056f0354b8ee50fcd0e6106aa964423477cb93024726458fce7ffd63d5d8?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/b74f056f0354b8ee50fcd0e6106aa964423477cb93024726458fce7ffd63d5d8?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"checkit.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.checkit.cz\/wp-content\/uploads\/img_a297886_w2181_t1508257974.jpg","url":"https:\/\/www.checkit.cz\/wp-content\/uploads\/img_a297886_w2181_t1508257974.jpg","height":0,"width":0},"url":"https:\/\/www.checkit.cz\/proc-jsou-digitalni-zvuky-tak-otravne\/","wordCount":391,"articleBody":"Jedn\u00edm z nejb\u011b\u017en\u011bj\u0161\u00edch zvuk\u016f v modern\u00edm sv\u011bt\u011b je p\u00edpnut\u00ed. Z mikrovlnky, mobiln\u00edch telefon\u016f, po\u010d\u00edta\u010d\u016f a z\u00e1lohovac\u00edch voz\u00edk\u016f n\u00e1m tato vysok\u00e1 v\u00fdstraha zn\u00ed z ka\u017ed\u00e9ho sm\u011bru. Ale jak se to d\u011bl\u00e1, a pro\u010d to tak roste?\u00a0Um\u011bl\u00e9 zvuky se obvykle vyr\u00e1b\u011bj\u00ed pomoc\u00ed jednoho ze dvou za\u0159\u00edzen\u00ed \u2013 ku\u017eelov\u00e9ho a magnetick\u00e9ho reproduktoru, kter\u00fd zesiluje zvuk z vibruj\u00edc\u00edho magnetu nebo z piezoelektrick\u00e9ho reproduktoru vyroben\u00e9ho ze speci\u00e1ln\u00edch materi\u00e1l\u016f, kter\u00e9 m\u011bn\u00ed tvar p\u0159i vystaven\u00ed elektrick\u00e9ho proudu.\u00a0Z hlediska elektroniky je snadn\u00e9 generovat p\u00edpnut\u00ed. V\u0161echno, co je zapot\u0159eb\u00ed k vytvo\u0159en\u00ed p\u00edpnut\u00ed, je oby\u010dejn\u00fd elektrick\u00fd obvod, kter\u00fd vytv\u00e1\u0159\u00ed \u010dtvercovou vlnu, jednoduch\u00fd typ sign\u00e1lu, kter\u00fd sko\u010d\u00ed mezi dv\u011bma \u00farovn\u011bmi a reproduktor pro zes\u00edlen\u00ed.\u00a0Pokud vezmete tuto \u010dtvercovou vlnu a hod\u00edte ji do piezoelektrick\u00e9ho reproduktoru nebo do reproduktoru typu magnetick\u00e1 c\u00edvka, vytvo\u0159\u00ed se zvuk, kter\u00fd je m\u00e9n\u011b \u010dist\u00fdm t\u00f3nem s podt\u00f3nem, co\u017e je p\u00edp\u00e1n\u00ed.\u00a0P\u00edp\u00e1n\u00ed n\u00e1m zn\u00ed cize proto, \u017ee se v \u010dase jeho t\u00f3n a vibrace absolutn\u011b nem\u011bn\u00ed. P\u0159i vy\u0161\u0161\u00edch frekvenc\u00edch na to na\u0161e ucho nen\u00ed zvykl\u00e9 a proto, kdy\u017e sly\u0161\u00edte t\u00f3n bl\u00edzk\u00fd nadzvuku, m\u00e1te pocit, \u017ee v\u00e1m to trh\u00e1 u\u0161i. Takov\u00e1to nep\u0159\u00edjemn\u00e1 v\u00fdstraha je v\u0161ak nutn\u00e1, abyste okam\u017eit\u011b v\u011bd\u011bli, \u017ee se n\u011bco d\u011bje.\u00a0Byl proveden pokus, kdy si \u00fa\u010dastn\u00edci m\u011bli vybrat jako vyzv\u00e1n\u011bn\u00ed telefonu ze sady digit\u00e1ln\u00edch, ploch\u00fdch t\u00f3n\u016f a druh\u00e1 sada obsahovala v\u00edce p\u0159irozen\u00e9 zvuky a instrumenty. 90 % \u00fa\u010dastn\u00edk\u016f si vybralo vyzv\u00e1n\u011bn\u00ed z druh\u00e9 sady.\u00a0Dal\u0161\u00ed studie uk\u00e1zala, \u017ee lid\u00e9 jsou ochotni si za libozvu\u010dn\u00e9 t\u00f3ny v mobilu p\u0159iplatit. Jejich pohodl\u00ed zv\u00edt\u011bzilo nad cenou v\u00fdrobku. Toto je v\u0161ak velmi o\u0161emetn\u00e9, proto\u017ee by se z toho mohl st\u00e1t marketingov\u00fd prost\u0159edek, jak nav\u00e9st lidi ke koupi dra\u017e\u0161\u00edch v\u011bc\u00ed. Nebo v\u011bc\u00ed, kter\u00e9 pot\u0159ebuj\u00ed j\u00edt na odbyt. Tento marketingov\u00fd tah v\u0161ak nem\u016f\u017ee b\u00fdt napadnuteln\u00fd stejn\u011b, jako tzv. podprahov\u00e9 reklamy.                                                                                                                                                                                                                                                                                                                                                                                        3.9\/5 - (8 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Pro\u010d jsou digit\u00e1ln\u00ed zvuky tak otravn\u00e9?","item":"https:\/\/www.checkit.cz\/proc-jsou-digitalni-zvuky-tak-otravne\/#breadcrumbitem"}]}]