{"id":20797,"date":"2022-06-30T14:06:13","date_gmt":"2022-06-30T12:06:13","guid":{"rendered":"https:\/\/www.phoenixcom.cz\/press\/?p=20797"},"modified":"2022-06-30T14:07:41","modified_gmt":"2022-06-30T12:07:41","slug":"kvalita-zvuku-na-koncertech-vliv-maji-suchost-vzduchu-i-denni-doba","status":"publish","type":"post","link":"https:\/\/www.phoenixcom.cz\/press\/kvalita-zvuku-na-koncertech-vliv-maji-suchost-vzduchu-i-denni-doba\/","title":{"rendered":"Kvalita zvuku na koncertech? Vliv maj\u00ed suchost vzduchu i denn\u00ed doba"},"content":{"rendered":"

L\u00e9to je nejen \u010dasem dovolen\u00fdch, ale tak\u00e9 \u0159ady open air festival\u016f i koncert\u016f v hal\u00e1ch \u010di s\u00e1lech. O tom, zda z takov\u00fdch akc\u00ed odch\u00e1z\u00edme spokojen\u00ed nebo na\u0161tvan\u00ed, \u010dasto nerozhoduj\u00ed v\u00fdkony kapel\u2026ale zvuk. Nevyhovuj\u00edc\u00ed akustika um\u00ed zkazit i sebelep\u0161\u00ed hudebn\u00ed v\u00fdkon muzikant\u016f. Co ale o kvalit\u011b zvuku vlastn\u011b rozhoduje? A pro\u010d je nap\u0159\u00edklad z pohledu akustiky koncert v noci vhodn\u011bj\u0161\u00ed ne\u017e b\u011bhem dne?<\/strong><\/p>\n

Je kr\u00e1sn\u00e1 letn\u00ed noc a koncert va\u0161\u00ed obl\u00edben\u00e9 kapely pr\u00e1v\u011b za\u010d\u00edn\u00e1. Vy i ostatn\u00ed fanou\u0161ci jste u vytr\u017een\u00ed a ti, kte\u0159\u00ed jsou fandov\u00e9 kvalitn\u00edho zvuku, se t\u011b\u0161\u00ed dvojn\u00e1sob. Hudba v noci je toti\u017e ide\u00e1ln\u00ed kombinace! Pro\u010d tomu tak je? Proto\u017ee v no\u010dn\u00edch hodin\u00e1ch b\u00fdv\u00e1 vzduch u zem\u011b chladn\u011bj\u0161\u00ed a hust\u0161\u00ed. Zvukov\u00e9 vlny se tedy oh\u00fdbaj\u00ed k t\u011bmto studen\u00fdm vrstv\u00e1m, kde se odr\u00e1\u017eej\u00ed a zesiluj\u00ed. Zvuk k n\u00e1m t\u00edm p\u00e1dem let\u00ed siln\u011bj\u0161\u00ed a p\u0159\u00edm\u011bj\u0161\u00ed cestou. \u201eNa \u0161\u00ed\u0159en\u00ed zvuku se podepisuje samoz\u0159ejm\u011b i vlhkost \u2013 \u010d\u00edm su\u0161\u0161\u00ed vzduch, t\u00edm l\u00e9pe a na del\u0161\u00ed vzd\u00e1lenost zvuk dolet\u00ed,\u201c<\/em> vysv\u011btluje Iveta Kr\u00e1lov\u00e1, Key Segments Manager ze spole\u010dnosti Ecophon, kter\u00e1 bezm\u00e1la \u010dty\u0159icet let vyv\u00edj\u00ed a prod\u00e1v\u00e1 akustick\u00e9 syst\u00e9my na absorpci hluku<\/strong>.<\/strong><\/p>\n

V\u00fdrazn\u011b tlum\u00edc\u00ed efekt na zvuk m\u00e1 naopak sn\u00edh. Ten dok\u00e1\u017ee nap\u0159\u00edklad utlumit zvuk na tich\u00e9 ulici (40 db) a\u017e o 7 dB. <\/em><\/p>\n

\u201eA vysv\u011btlen\u00ed je op\u011bt ve fyzice. Od hladk\u00e9ho a tvrd\u00e9ho povrchu se zvukov\u00e9 vlny odr\u00e1\u017eej\u00ed, ale v dut\u00fdch prostorech \u0161\u00ed\u0159en\u00edm zvuku vznik\u00e1 t\u0159en\u00ed, kter\u00e9 se m\u011bn\u00ed na teplo. A sn\u00edh nen\u00ed nic jin\u00e9ho ne\u017e vlo\u010dky a dutiny. Co se stane s teplem ve sn\u011bhu je jasn\u00e9, a pr\u00e1v\u011b tato p\u0159em\u011bna a ztr\u00e1ta energie stoj\u00ed za utlumen\u00edm zvuku,\u201c <\/em>\u0159\u00edk\u00e1 Iveta Kr\u00e1lov\u00e1.<\/strong><\/p>\n

K\u0159est ohn\u011bm pro zvuka\u0159e? Open air akce!<\/strong><\/p>\n

Obecn\u011b plat\u00ed, \u017ee m\u00edsta s nejlep\u0161\u00edm zvukem by m\u011bla b\u00fdt v dosahu reprobox\u016f. Tedy za podm\u00ednky, \u017ee na akci je zku\u0161en\u00fd zvuka\u0159, kter\u00fd m\u00e1 k dispozici dostate\u010dn\u00fd audiov\u00fdkon. Eventy pod \u0161ir\u00e1kem jsou ov\u0161em br\u00e1ny jako skute\u010dn\u00e1 v\u00fdzva, kter\u00e1 pln\u011b prov\u011b\u0159\u00ed um\u011bn\u00ed zvuka\u0159e. D\u016fvod je ten, \u017ee nem\u016f\u017ee vyu\u017e\u00edvat exaktn\u00ed m\u011b\u0159en\u00ed jako je tomu v koncertn\u00edch s\u00e1lech. A u\u017e v\u016fbec nem\u00e1 k dispozici materi\u00e1ly, kter\u00e9 pom\u00e1haj\u00ed \u0161\u00ed\u0159en\u00ed zvuku. Nejbli\u017e\u0161\u00ed st\u011bna je pro n\u011bj toti\u017e \u010dasto les. Co\u017e je dosti markantn\u00ed rozd\u00edl oproti zvu\u010den\u00ed koncertn\u00edch s\u00e1l\u016f nebo v\u00edce\u00fa\u010delov\u00fdch hal, kde lze vyu\u017e\u00edt i vhodn\u00e9 materi\u00e1ly k optim\u00e1ln\u00edmu \u0161\u00ed\u0159en\u00ed zvuku a p\u0159esn\u00e9 akustick\u00e9 simulace.<\/p>\n

Akustika koncertn\u00edch s\u00e1l\u016f je v\u011bda <\/strong><\/p>\n

Nap\u0159\u00edklad v minul\u00e9m roce p\u0159i projektov\u00e1n\u00ed s\u00e1lu pro filharmonii v brn\u011bnsk\u00e9m Jan\u00e1\u010dkov\u011b kulturn\u00edm centru se pou\u017e\u00edval model o rozm\u011brech 5 x 3,5 x 3 metry s desetin\u00e1sobn\u011b zmen\u0161enou, ale do posledn\u00edho detailu provedenou podobou s\u00e1lu. Do t\u00e9 akustici pou\u0161t\u011bli v\u0161echny mysliteln\u00e9 zvuky v\u010detn\u011b potlesku. To v\u0161e, aby ov\u011b\u0159ili rozm\u00edst\u011bn\u00ed st\u011bn, balk\u00f3n\u016f i sedadel a zajistili tak perfektn\u00ed zvukov\u00fd z\u00e1\u017eitek bez ozv\u011bn pro ka\u017ed\u00e9ho div\u00e1ka v s\u00e1le. A takov\u00e1 ov\u011b\u0159ov\u00e1n\u00ed \u010dasto zaberou n\u011bkolik m\u011bs\u00edc\u016f. Mezi standardn\u00ed n\u00e1stroje u akusticky n\u00e1ro\u010dn\u00fdch staveb pat\u0159\u00ed 3-D po\u010d\u00edta\u010dov\u00e1 <\/strong>simulaci \u0161\u00ed\u0159en\u00ed zvuku. U uzav\u0159en\u00fdch staveb nejde pouze o s\u00edlu zvuku, ale p\u0159edev\u0161\u00edm o optim\u00e1ln\u00ed poslechov\u00e9 pom\u011bry. Toho lze krom\u011b vhodn\u00e9ho rozm\u00edst\u011bn\u00e1 prvk\u016f jako jsou bloky sedadel, st\u011bny nebo balkony doc\u00edlit i volbou vhodn\u00e9ho materi\u00e1lu.<\/p>\n

\u201eZ na\u0161ich zku\u0161enost\u00ed v\u00edme, \u017ee \u0159ada architektonicky p\u0159ekr\u00e1sn\u011b \u0159e\u0161en\u00fdch prostor trp\u00ed z hlediska kvality akustiky. A p\u0159itom by \u010dasto pomohlo pouze zvolit vhodn\u011bj\u0161\u00ed materi\u00e1l. Typick\u00fdm p\u0159\u00edkladem jsou voln\u011b zav\u011b\u0161en\u00e9 prvky z nevhodn\u00e9ho materi\u00e1lu, kter\u00fd nedostate\u010dn\u011b tlum\u00ed zvuk,\u201c <\/em><\/strong>poukazuje na jednu z chyb Iveta Kr\u00e1lov\u00e1 a pokra\u010duje:<\/strong> \u201eMy v t\u011bchto p\u0159\u00edpadech doporu\u010duje nap\u0159\u00edklad n\u00e1\u0161 <\/em>Ecophon Solo Rectangle, co\u017e je voln\u011b zav\u011b\u0161en\u00fd panel nab\u00edzej\u00edc\u00ed \u0159adu proveden\u00ed a t\u0159i r\u016fzn\u00e9 z\u00e1v\u011bsn\u00e9 syst\u00e9my umo\u017e\u0148uj\u00ed vytv\u00e1\u0159et n\u011bkolik vrstev a \u00fahl\u016f, a je k dispozici i v ekologicky \u0161etrn\u00e9m proveden\u00ed Plant.\u201c<\/em><\/strong><\/p>\nSt\u00e1hnout tiskovou zpr\u00e1vu<\/a>\nngg_shortcode_0_placeholder\n","protected":false},"excerpt":{"rendered":"

L\u00e9to je nejen \u010dasem dovolen\u00fdch, ale tak\u00e9 \u0159ady open air festival\u016f i koncert\u016f v hal\u00e1ch \u010di s\u00e1lech. O tom, zda z takov\u00fdch akc\u00ed odch\u00e1z\u00edme spokojen\u00ed nebo na\u0161tvan\u00ed, \u010dasto nerozhoduj\u00ed v\u00fdkony kapel\u2026ale zvuk. Nevyhovuj\u00edc\u00ed akustika um\u00ed zkazit i sebelep\u0161\u00ed hudebn\u00ed v\u00fdkon muzikant\u016f. Co ale o kvalit\u011b zvuku vlastn\u011b rozhoduje? A pro\u010d je nap\u0159\u00edklad z pohledu akustiky koncert v noci vhodn\u011bj\u0161\u00ed […]<\/p>\n","protected":false},"author":3,"featured_media":20796,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0},"categories":[252],"tags":[],"_links":{"self":[{"href":"https:\/\/www.phoenixcom.cz\/press\/wp-json\/wp\/v2\/posts\/20797"}],"collection":[{"href":"https:\/\/www.phoenixcom.cz\/press\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.phoenixcom.cz\/press\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.phoenixcom.cz\/press\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.phoenixcom.cz\/press\/wp-json\/wp\/v2\/comments?post=20797"}],"version-history":[{"count":3,"href":"https:\/\/www.phoenixcom.cz\/press\/wp-json\/wp\/v2\/posts\/20797\/revisions"}],"predecessor-version":[{"id":20800,"href":"https:\/\/www.phoenixcom.cz\/press\/wp-json\/wp\/v2\/posts\/20797\/revisions\/20800"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.phoenixcom.cz\/press\/wp-json\/wp\/v2\/media\/20796"}],"wp:attachment":[{"href":"https:\/\/www.phoenixcom.cz\/press\/wp-json\/wp\/v2\/media?parent=20797"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.phoenixcom.cz\/press\/wp-json\/wp\/v2\/categories?post=20797"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.phoenixcom.cz\/press\/wp-json\/wp\/v2\/tags?post=20797"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}