{"id":57796,"date":"2023-04-22T02:57:01","date_gmt":"2023-04-22T07:57:01","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-to-produce-ultrasonic-sound-at-home\/"},"modified":"2025-01-27T06:11:52","modified_gmt":"2025-01-27T11:11:52","slug":"how-to-produce-ultrasonic-sound-at-home","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/cs\/how-to-produce-ultrasonic-sound-at-home\/","title":{"rendered":"Ultrazvuk doma: Jednoduch\u00e9 n\u00e1vody a postupy"},"content":{"rendered":"<p>Ultrazvuk, neviditeln\u00fd zvuk s frekvenc\u00ed nad 20 kHz, je v\u0161udyp\u0159\u00edtomn\u00fd v mnoha modern\u00edch technologi\u00edch.  Jeho v\u00fdroba doma m\u016f\u017ee b\u00fdt p\u0159ekvapiv\u011b jednoduch\u00e1 a dostupn\u00e1, i kdy\u017e dosa\u017een\u00ed vysok\u00fdch v\u00fdkon\u016f vy\u017eaduje specializovan\u00e9 vybaven\u00ed. Tento \u010dl\u00e1nek se zam\u011b\u0159\u00ed na praktick\u00e9 metody v\u00fdroby ultrazvuku v dom\u00e1c\u00edch podm\u00ednk\u00e1ch, v\u010detn\u011b jejich omezen\u00ed a bezpe\u010dnostn\u00edch opat\u0159en\u00ed.<\/p>\n<h3>Zvukov\u00e9 karty a software<\/h3>\n<p>Nejjednodu\u0161\u0161\u00ed zp\u016fsob, jak generovat ultrazvuk doma, je pomoc\u00ed b\u011b\u017en\u00e9 zvukov\u00e9 karty a vhodn\u00e9ho softwaru.  Mnoho program\u016f pro tvorbu zvuku umo\u017e\u0148uje generovat t\u00f3ny s frekvenc\u00ed nad 20 kHz.  Kvalita zvuku a intenzita ultrazvuku budou z\u00e1viset na kvalit\u011b zvukov\u00e9 karty a reproduktor\u016f.  Je v\u0161ak d\u016fle\u017eit\u00e9 si uv\u011bdomit, \u017ee b\u011b\u017en\u00e9 reproduktory nejsou optimalizov\u00e1ny pro tak vysok\u00e9 frekvence a jejich efektivita bude omezen\u00e1.  V\u00fdsledn\u00fd zvuk bude pravd\u011bpodobn\u011b slab\u00fd a zkreslen\u00fd.<\/p>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Software<\/th>\n<th>Dostupnost<\/th>\n<th>Kvalita zvuku<\/th>\n<th>Omezen\u00ed<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Audacity<\/td>\n<td>Zdarma<\/td>\n<td>St\u0159edn\u00ed<\/td>\n<td>Omezen\u00e1 kontrola nad vysok\u00fdmi frekvencemi<\/td>\n<\/tr>\n<tr>\n<td>Synthesizer VST<\/td>\n<td>Placen\u00fd\/Zdarma<\/td>\n<td>Vysok\u00e1<\/td>\n<td>Vy\u017eaduje hudebn\u00ed znalosti a v\u00fdkonn\u00fd po\u010d\u00edta\u010d<\/td>\n<\/tr>\n<tr>\n<td>Speci\u00e1ln\u00ed software<\/td>\n<td>Placen\u00fd<\/td>\n<td>Vysok\u00e1<\/td>\n<td>Komplexn\u00ed nastaven\u00ed, \u010dasto specifick\u00fd hardware<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Piezoelektrick\u00e9 prvky<\/h3>\n<p>Pro efektivn\u011bj\u0161\u00ed generov\u00e1n\u00ed ultrazvuku jsou vhodn\u00e9 piezoelektrick\u00e9 prvky. Tyto krystaly m\u011bn\u00ed elektrickou energii na mechanickou vibraci a naopak.  Mnoho dostupn\u00fdch piezoelektrick\u00fdch bzu\u010d\u00e1k\u016f, pou\u017e\u00edvan\u00fdch nap\u0159\u00edklad v hodink\u00e1ch nebo hra\u010dk\u00e1ch, pracuje v ultrazvukov\u00e9m rozsahu.  P\u0159\u00edm\u00e9 p\u0159ipojen\u00ed k zdroji nap\u011bt\u00ed s prom\u011bnnou frekvenc\u00ed m\u016f\u017ee vygenerovat ultrazvuk, av\u0161ak i zde je kvalita a intenzita limitovan\u00e1.  Pro dosa\u017een\u00ed vy\u0161\u0161\u00edho v\u00fdkonu by bylo pot\u0159eba specializovan\u00e9 zesilova\u010de a p\u0159esn\u011bj\u0161\u00ed \u0159\u00edzen\u00ed frekvence.<\/p>\n<h3>Ultrazvukov\u00e9 \u010disti\u010dky<\/h3>\n<p>I kdy\u017e prim\u00e1rn\u00edm \u00fa\u010delem ultrazvukov\u00fdch \u010disti\u010dek nen\u00ed generov\u00e1n\u00ed sly\u0161iteln\u00e9ho ultrazvuku, emituj\u00ed ultrazvukov\u00e9 vlny do kapaliny.  P\u0159esto\u017ee nen\u00ed mo\u017en\u00e9 p\u0159\u00edmo sly\u0161et zvuk, vibrace jsou citeln\u00e9 a v n\u011bkter\u00fdch p\u0159\u00edpadech je mo\u017en\u00e9 vn\u00edmat specifick\u00fd zvukov\u00fd charakter, pokud se \u010disti\u010dka nach\u00e1z\u00ed v bl\u00edzkosti citliv\u00fdch mikrofon\u016f.  Je t\u0159eba m\u00edt na pam\u011bti bezpe\u010dnostn\u00ed opat\u0159en\u00ed \u2013 p\u0159\u00edli\u0161 bl\u00edzk\u00fd kontakt s t\u011bmito vlnami m\u016f\u017ee zp\u016fsobit po\u0161kozen\u00ed sluchu.<\/p>\n<h3>Bezpe\u010dnostn\u00ed opat\u0159en\u00ed<\/h3>\n<p>P\u0159i pr\u00e1ci s ultrazvukem je d\u016fle\u017eit\u00e9 db\u00e1t na bezpe\u010dnost.  A\u010dkoli v\u011bt\u0161ina dom\u00e1c\u00edch metod generuje ultrazvuk s n\u00edzk\u00fdm v\u00fdkonem, dlouhodob\u00e1 expozice m\u016f\u017ee po\u0161kodit sluch nebo zp\u016fsobit nevolnost.  V\u017edy je vhodn\u00e9 pracovat s ochranou sluchu, a to i p\u0159i n\u00edzk\u00fdch intenzit\u00e1ch ultrazvuku.  D\u00e1le je d\u016fle\u017eit\u00e9 zamezit p\u0159\u00edm\u00e9mu kontaktu s piezoelektrick\u00fdmi prvky p\u0159i provozu, aby se p\u0159ede\u0161lo p\u0159\u00edpadn\u00e9mu \u00farazu elektrick\u00fdm proudem.<\/p>\n<p>V dom\u00e1c\u00edch podm\u00ednk\u00e1ch je mo\u017en\u00e9 vyrobit ultrazvuk relativn\u011b snadno, av\u0161ak dosa\u017een\u00ed vysok\u00e9 intenzity a \u010dist\u00e9ho zvuku vy\u017eaduje specializovan\u00e9 vybaven\u00ed a znalosti.  V\u00fd\u0161e uveden\u00e9 metody nab\u00edzej\u00ed cestu k experimentov\u00e1n\u00ed s ultrazvukem, ale v\u017edy je nutn\u00e9 db\u00e1t na bezpe\u010dnostn\u00ed opat\u0159en\u00ed.  Pou\u017eit\u00ed ultrazvukov\u00fdch \u010disti\u010dek, a\u010dkoliv negeneruje p\u0159\u00edmo sly\u0161iteln\u00fd ultrazvuk, p\u0159edstavuje dostupn\u011bj\u0161\u00ed a bezpe\u010dn\u011bj\u0161\u00ed alternativu pro sezn\u00e1men\u00ed s t\u00edmto typem technologie.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ultrazvuk, neviditeln\u00fd zvuk s frekvenc\u00ed nad 20 kHz, je v\u0161udyp\u0159\u00edtomn\u00fd v mnoha modern\u00edch technologi\u00edch. Jeho v\u00fdroba doma m\u016f\u017ee b\u00fdt p\u0159ekvapiv\u011b jednoduch\u00e1 a dostupn\u00e1, i kdy\u017e dosa\u017een\u00ed vysok\u00fdch v\u00fdkon\u016f vy\u017eaduje specializovan\u00e9 vybaven\u00ed. Tento \u010dl\u00e1nek se zam\u011b\u0159\u00ed na praktick\u00e9 metody v\u00fdroby ultrazvuku v dom\u00e1c\u00edch podm\u00ednk\u00e1ch, v\u010detn\u011b jejich omezen\u00ed a bezpe\u010dnostn\u00edch opat\u0159en\u00ed. Zvukov\u00e9 karty a software Nejjednodu\u0161\u0161\u00ed zp\u016fsob,<\/p>\n","protected":false},"author":1,"featured_media":26473,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6415],"tags":[],"class_list":["post-57796","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","prodpage-classic"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/57796","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/comments?post=57796"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/57796\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media\/26473"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media?parent=57796"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/categories?post=57796"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/tags?post=57796"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}