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href="#Elektroninis_triukšmas"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Elektroninis triukšmas</span> </div> </a> <ul id="toc-Elektroninis_triukšmas-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Triukšmas_matavimuose" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Triukšmas_matavimuose"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Triukšmas matavimuose</span> </div> </a> <ul id="toc-Triukšmas_matavimuose-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Triukšmo_įvertinimas" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Triukšmo_įvertinimas"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Triukšmo įvertinimas</span> </div> </a> <ul id="toc-Triukšmo_įvertinimas-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Triukšmo_mažinimas" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Triukšmo_mažinimas"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Triukšmo mažinimas</span> </div> </a> <ul id="toc-Triukšmo_mažinimas-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Išnašos" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Išnašos"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Išnašos</span> </div> </a> <ul id="toc-Išnašos-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Turinys" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Toggle the table of contents" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Toggle the table of contents</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Triukšmas</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. Available in 77 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-77" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">77 kalbų</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Geraas" title="Geraas – afrikanų" lang="af" hreflang="af" data-title="Geraas" data-language-autonym="Afrikaans" data-language-local-name="afrikanų" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-als mw-list-item"><a href="https://als.wikipedia.org/wiki/Ger%C3%A4usch" title="Geräusch – Šveicarijos vokiečių" lang="gsw" hreflang="gsw" data-title="Geräusch" data-language-autonym="Alemannisch" data-language-local-name="Šveicarijos vokiečių" class="interlanguage-link-target"><span>Alemannisch</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%B6%D8%AC%D9%8A%D8%AC" title="ضجيج – arabų" lang="ar" hreflang="ar" data-title="ضجيج" data-language-autonym="العربية" data-language-local-name="arabų" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-as mw-list-item"><a href="https://as.wikipedia.org/wiki/%E0%A6%95%E0%A7%8B%E0%A6%B2%E0%A6%BE%E0%A6%B9%E0%A6%B2_(%E0%A6%B6%E0%A6%AC%E0%A7%8D%E0%A6%A6)" title="কোলাহল (শব্দ) – asamų" lang="as" hreflang="as" data-title="কোলাহল (শব্দ)" data-language-autonym="অসমীয়া" data-language-local-name="asamų" class="interlanguage-link-target"><span>অসমীয়া</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Ru%C3%ADu" title="Ruíu – asturianų" lang="ast" hreflang="ast" data-title="Ruíu" data-language-autonym="Asturianu" data-language-local-name="asturianų" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-bat-smg mw-list-item"><a href="https://bat-smg.wikipedia.org/wiki/Alasos" title="Alasos – žemaičių" lang="sgs" hreflang="sgs" data-title="Alasos" data-language-autonym="Žemaitėška" data-language-local-name="žemaičių" class="interlanguage-link-target"><span>Žemaitėška</span></a></li><li class="interlanguage-link interwiki-bcl mw-list-item"><a href="https://bcl.wikipedia.org/wiki/Ribok" title="Ribok – Central Bikol" lang="bcl" hreflang="bcl" data-title="Ribok" data-language-autonym="Bikol Central" data-language-local-name="Central Bikol" class="interlanguage-link-target"><span>Bikol Central</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%A8%D1%83%D0%BC" title="Шум – baltarusių" lang="be" hreflang="be" data-title="Шум" data-language-autonym="Беларуская" data-language-local-name="baltarusių" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/%D0%A8%D1%83%D0%BC" title="Шум – Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Шум" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="Belarusian (Taraškievica orthography)" class="interlanguage-link-target"><span>Беларуская (тарашкевіца)</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%A8%D1%83%D0%BC" title="Шум – bulgarų" lang="bg" hreflang="bg" data-title="Шум" data-language-autonym="Български" data-language-local-name="bulgarų" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%95%E0%A7%8B%E0%A6%B2%E0%A6%BE%E0%A6%B9%E0%A6%B2" title="কোলাহল – bengalų" lang="bn" hreflang="bn" data-title="কোলাহল" data-language-autonym="বাংলা" data-language-local-name="bengalų" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-br mw-list-item"><a href="https://br.wikipedia.org/wiki/Trouz" title="Trouz – bretonų" lang="br" hreflang="br" data-title="Trouz" data-language-autonym="Brezhoneg" data-language-local-name="bretonų" class="interlanguage-link-target"><span>Brezhoneg</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Soroll" title="Soroll – katalonų" lang="ca" hreflang="ca" data-title="Soroll" data-language-autonym="Català" data-language-local-name="katalonų" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Hluk" title="Hluk – čekų" lang="cs" hreflang="cs" data-title="Hluk" data-language-autonym="Čeština" data-language-local-name="čekų" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cv mw-list-item"><a href="https://cv.wikipedia.org/wiki/%D0%A8%D0%B0%D0%B2" title="Шав – čiuvašų" lang="cv" hreflang="cv" data-title="Шав" data-language-autonym="Чӑвашла" data-language-local-name="čiuvašų" class="interlanguage-link-target"><span>Чӑвашла</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/S%C5%B5n" title="Sŵn – valų" lang="cy" hreflang="cy" data-title="Sŵn" data-language-autonym="Cymraeg" data-language-local-name="valų" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/St%C3%B8j" title="Støj – danų" lang="da" hreflang="da" data-title="Støj" data-language-autonym="Dansk" data-language-local-name="danų" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Ger%C3%A4usch" title="Geräusch – vokiečių" lang="de" hreflang="de" data-title="Geräusch" data-language-autonym="Deutsch" data-language-local-name="vokiečių" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%98%CF%8C%CF%81%CF%85%CE%B2%CE%BF%CF%82" title="Θόρυβος – graikų" lang="el" hreflang="el" data-title="Θόρυβος" data-language-autonym="Ελληνικά" data-language-local-name="graikų" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Noise" title="Noise – anglų" lang="en" hreflang="en" data-title="Noise" data-language-autonym="English" data-language-local-name="anglų" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Bruo" title="Bruo – esperanto" lang="eo" hreflang="eo" data-title="Bruo" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Ruido" title="Ruido – ispanų" lang="es" hreflang="es" data-title="Ruido" data-language-autonym="Español" data-language-local-name="ispanų" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/M%C3%BCra" title="Müra – estų" lang="et" hreflang="et" data-title="Müra" data-language-autonym="Eesti" data-language-local-name="estų" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Zarata" title="Zarata – baskų" lang="eu" hreflang="eu" data-title="Zarata" data-language-autonym="Euskara" data-language-local-name="baskų" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%86%D9%88%DB%8C%D8%B2" title="نویز – persų" lang="fa" hreflang="fa" data-title="نویز" data-language-autonym="فارسی" data-language-local-name="persų" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Melu" title="Melu – suomių" lang="fi" hreflang="fi" data-title="Melu" data-language-autonym="Suomi" data-language-local-name="suomių" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Bruit" title="Bruit – prancūzų" lang="fr" hreflang="fr" data-title="Bruit" data-language-autonym="Français" data-language-local-name="prancūzų" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Ru%C3%ADdo" title="Ruído – galisų" lang="gl" hreflang="gl" data-title="Ruído" data-language-autonym="Galego" data-language-local-name="galisų" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-gu mw-list-item"><a href="https://gu.wikipedia.org/wiki/%E0%AA%98%E0%AB%8B%E0%AA%82%E0%AA%98%E0%AA%BE%E0%AA%9F_(%E0%AA%A7%E0%AB%8D%E0%AA%B5%E0%AA%A8%E0%AA%BF)" title="ઘોંઘાટ (ધ્વનિ) – gudžaratų" lang="gu" hreflang="gu" data-title="ઘોંઘાટ (ધ્વનિ)" data-language-autonym="ગુજરાતી" data-language-local-name="gudžaratų" class="interlanguage-link-target"><span>ગુજરાતી</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%A8%D7%A2%D7%A9" title="רעש – hebrajų" lang="he" hreflang="he" data-title="רעש" data-language-autonym="עברית" data-language-local-name="hebrajų" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%B0%E0%A4%B5" title="रव – hindi" lang="hi" hreflang="hi" data-title="रव" data-language-autonym="हिन्दी" data-language-local-name="hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/%C5%A0um" title="Šum – kroatų" lang="hr" hreflang="hr" data-title="Šum" data-language-autonym="Hrvatski" data-language-local-name="kroatų" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-ht mw-list-item"><a href="https://ht.wikipedia.org/wiki/Bri" title="Bri – Haičio" lang="ht" hreflang="ht" data-title="Bri" data-language-autonym="Kreyòl ayisyen" data-language-local-name="Haičio" class="interlanguage-link-target"><span>Kreyòl ayisyen</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Zaj" title="Zaj – vengrų" lang="hu" hreflang="hu" data-title="Zaj" data-language-autonym="Magyar" data-language-local-name="vengrų" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D4%B1%D5%B2%D5%B4%D5%B8%D6%82%D5%AF" title="Աղմուկ – armėnų" lang="hy" hreflang="hy" data-title="Աղմուկ" data-language-autonym="Հայերեն" data-language-local-name="armėnų" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-hyw mw-list-item"><a href="https://hyw.wikipedia.org/wiki/%D4%B1%D5%B2%D5%B4%D5%B8%D6%82%D5%AF%D5%A8_%D4%B5%D6%82_%D4%B1%D5%B6%D5%B8%D6%80_%D5%8E%D5%B6%D5%A1%D5%BD%D5%B6%D5%A5%D6%80%D5%A8" title="Աղմուկը Եւ Անոր Վնասները – Western Armenian" lang="hyw" hreflang="hyw" data-title="Աղմուկը Եւ Անոր Վնասները" data-language-autonym="Արեւմտահայերէն" data-language-local-name="Western Armenian" class="interlanguage-link-target"><span>Արեւմտահայերէն</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Derau" title="Derau – indoneziečių" lang="id" hreflang="id" data-title="Derau" data-language-autonym="Bahasa Indonesia" data-language-local-name="indoneziečių" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Rumore" title="Rumore – italų" lang="it" hreflang="it" data-title="Rumore" data-language-autonym="Italiano" data-language-local-name="italų" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%83%8E%E3%82%A4%E3%82%BA" title="ノイズ – japonų" lang="ja" hreflang="ja" data-title="ノイズ" data-language-autonym="日本語" data-language-local-name="japonų" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%A8%D1%83,_%D1%88%D1%83%D1%8B%D0%BB" title="Шу, шуыл – kazachų" lang="kk" hreflang="kk" data-title="Шу, шуыл" data-language-autonym="Қазақша" data-language-local-name="kazachų" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-kn mw-list-item"><a href="https://kn.wikipedia.org/wiki/%E0%B2%B8%E0%B2%A6%E0%B3%8D%E0%B2%A6%E0%B3%81" title="ಸದ್ದು – kanadų" lang="kn" hreflang="kn" data-title="ಸದ್ದು" data-language-autonym="ಕನ್ನಡ" data-language-local-name="kanadų" class="interlanguage-link-target"><span>ಕನ್ನಡ</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%9E%A1%EC%9D%8C" title="잡음 – korėjiečių" lang="ko" hreflang="ko" data-title="잡음" data-language-autonym="한국어" data-language-local-name="korėjiečių" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ky mw-list-item"><a href="https://ky.wikipedia.org/wiki/%D0%AB%D0%B7%D1%8B-%D1%87%D1%83%D1%83" title="Ызы-чуу – kirgizų" lang="ky" hreflang="ky" data-title="Ызы-чуу" data-language-autonym="Кыргызча" data-language-local-name="kirgizų" class="interlanguage-link-target"><span>Кыргызча</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Troksnis" title="Troksnis – latvių" lang="lv" hreflang="lv" data-title="Troksnis" data-language-autonym="Latviešu" data-language-local-name="latvių" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%91%D1%83%D1%87%D0%B0%D0%B2%D0%B0" title="Бучава – makedonų" lang="mk" hreflang="mk" data-title="Бучава" data-language-autonym="Македонски" data-language-local-name="makedonų" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%92%E0%B4%9A%E0%B5%8D%E0%B4%9A" title="ഒച്ച – malajalių" lang="ml" hreflang="ml" data-title="ഒച്ച" data-language-autonym="മലയാളം" data-language-local-name="malajalių" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Hingar" title="Hingar – malajiečių" lang="ms" hreflang="ms" data-title="Hingar" data-language-autonym="Bahasa Melayu" data-language-local-name="malajiečių" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Ruis_(signaal)" title="Ruis (signaal) – olandų" lang="nl" hreflang="nl" data-title="Ruis (signaal)" data-language-autonym="Nederlands" data-language-local-name="olandų" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/St%C3%B8y" title="Støy – naujoji norvegų" lang="nn" hreflang="nn" data-title="Støy" data-language-autonym="Norsk nynorsk" data-language-local-name="naujoji norvegų" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/St%C3%B8y_(informasjon)" title="Støy (informasjon) – norvegų bukmolas" lang="nb" hreflang="nb" data-title="Støy (informasjon)" data-language-autonym="Norsk bokmål" data-language-local-name="norvegų bukmolas" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Szum_akustyczny" title="Szum akustyczny – lenkų" lang="pl" hreflang="pl" data-title="Szum akustyczny" data-language-autonym="Polski" data-language-local-name="lenkų" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Ru%C3%ADdo" title="Ruído – portugalų" lang="pt" hreflang="pt" data-title="Ruído" data-language-autonym="Português" data-language-local-name="portugalų" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%A8%D1%83%D0%BC" title="Шум – rusų" lang="ru" hreflang="ru" data-title="Шум" data-language-autonym="Русский" data-language-local-name="rusų" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-scn mw-list-item"><a href="https://scn.wikipedia.org/wiki/Scrusciu_(rumuri)" title="Scrusciu (rumuri) – siciliečių" lang="scn" hreflang="scn" data-title="Scrusciu (rumuri)" data-language-autonym="Sicilianu" data-language-local-name="siciliečių" class="interlanguage-link-target"><span>Sicilianu</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Buka" title="Buka – serbų-kroatų" lang="sh" hreflang="sh" data-title="Buka" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbų-kroatų" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wikipedia.org/wiki/%E0%B6%9D%E0%B7%9D%E0%B7%82%E0%B7%8F%E0%B7%80" title="ඝෝෂාව – sinhalų" lang="si" hreflang="si" data-title="ඝෝෂාව" data-language-autonym="සිංහල" data-language-local-name="sinhalų" class="interlanguage-link-target"><span>සිංහල</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Noise" title="Noise – Simple English" lang="en-simple" hreflang="en-simple" data-title="Noise" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Hluk" title="Hluk – slovakų" lang="sk" hreflang="sk" data-title="Hluk" data-language-autonym="Slovenčina" data-language-local-name="slovakų" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/%C5%A0um" title="Šum – slovėnų" lang="sl" hreflang="sl" data-title="Šum" data-language-autonym="Slovenščina" data-language-local-name="slovėnų" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sn mw-list-item"><a href="https://sn.wikipedia.org/wiki/Ruzha" title="Ruzha – šonų" lang="sn" hreflang="sn" data-title="Ruzha" data-language-autonym="ChiShona" data-language-local-name="šonų" class="interlanguage-link-target"><span>ChiShona</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Zhurma" title="Zhurma – albanų" lang="sq" hreflang="sq" data-title="Zhurma" data-language-autonym="Shqip" data-language-local-name="albanų" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/Buka" title="Buka – serbų" lang="sr" hreflang="sr" data-title="Buka" data-language-autonym="Српски / srpski" data-language-local-name="serbų" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Brus" title="Brus – švedų" lang="sv" hreflang="sv" data-title="Brus" data-language-autonym="Svenska" data-language-local-name="švedų" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-sw mw-list-item"><a href="https://sw.wikipedia.org/wiki/Kelele" title="Kelele – suahilių" lang="sw" hreflang="sw" data-title="Kelele" data-language-autonym="Kiswahili" data-language-local-name="suahilių" class="interlanguage-link-target"><span>Kiswahili</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%87%E0%AE%B0%E0%AF%88%E0%AE%9A%E0%AF%8D%E0%AE%9A%E0%AE%B2%E0%AF%8D" title="இரைச்சல் – tamilų" lang="ta" hreflang="ta" data-title="இரைச்சல்" data-language-autonym="தமிழ்" data-language-local-name="tamilų" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B9%80%E0%B8%AA%E0%B8%B5%E0%B8%A2%E0%B8%87%E0%B8%A3%E0%B8%9A%E0%B8%81%E0%B8%A7%E0%B8%99" title="เสียงรบกวน – tajų" lang="th" hreflang="th" data-title="เสียงรบกวน" data-language-autonym="ไทย" data-language-local-name="tajų" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Ingay" title="Ingay – tagalogų" lang="tl" hreflang="tl" data-title="Ingay" data-language-autonym="Tagalog" data-language-local-name="tagalogų" class="interlanguage-link-target"><span>Tagalog</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/G%C3%BCr%C3%BClt%C3%BC" title="Gürültü – turkų" lang="tr" hreflang="tr" data-title="Gürültü" data-language-autonym="Türkçe" data-language-local-name="turkų" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%A8%D1%83%D0%BC" title="Шум – ukrainiečių" lang="uk" hreflang="uk" data-title="Шум" data-language-autonym="Українська" data-language-local-name="ukrainiečių" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%D8%B4%D9%88%D8%B1%D9%88%D8%BA%D9%84" title="شوروغل – urdų" lang="ur" hreflang="ur" data-title="شوروغل" data-language-autonym="اردو" data-language-local-name="urdų" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Shovqin" title="Shovqin – uzbekų" lang="uz" hreflang="uz" data-title="Shovqin" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="uzbekų" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Ti%E1%BA%BFng_%E1%BB%93n" title="Tiếng ồn – vietnamiečių" lang="vi" hreflang="vi" data-title="Tiếng ồn" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamiečių" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-wa mw-list-item"><a href="https://wa.wikipedia.org/wiki/Brut" title="Brut – valonų" lang="wa" hreflang="wa" data-title="Brut" data-language-autonym="Walon" data-language-local-name="valonų" class="interlanguage-link-target"><span>Walon</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Aringasa" title="Aringasa – varai" lang="war" hreflang="war" data-title="Aringasa" data-language-autonym="Winaray" data-language-local-name="varai" class="interlanguage-link-target"><span>Winaray</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E5%99%AA%E9%9F%B3" title="噪音 – kinų kalbos vu tarmė" lang="wuu" hreflang="wuu" data-title="噪音" data-language-autonym="吴语" data-language-local-name="kinų kalbos vu tarmė" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E5%99%AA%E9%9F%B3" title="噪音 – kinų" lang="zh" hreflang="zh" data-title="噪音" data-language-autonym="中文" data-language-local-name="kinų" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E5%99%AA%E9%9F%B3" title="噪音 – kinų kalbos Kantono tarmė" lang="yue" hreflang="yue" data-title="噪音" data-language-autonym="粵語" data-language-local-name="kinų kalbos Kantono tarmė" class="interlanguage-link-target"><span>粵語</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q179448#sitelinks-wikipedia" title="Keisti tarpkalbines nuorodas" class="wbc-editpage">Keisti nuorodas</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Vardų sritys"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Triuk%C5%A1mas" title="Rodyti puslapio turinį [c]" accesskey="c"><span>Straipsnis</span></a></li><li id="ca-talk" class="new vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Aptarimas:Triuk%C5%A1mas&action=edit&redlink=1" rel="discussion" class="new" title="Puslapio turinio aptarimas (puslapis neegzistuoja) [t]" accesskey="t"><span>Aptarimas</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Change language variant" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">lietuvių</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Žiūrėti"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Triuk%C5%A1mas"><span>Skaityti</span></a></li><li id="ca-ve-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Triuk%C5%A1mas&veaction=edit" title="Redaguoti šį puslapį [v]" accesskey="v"><span>Keisti</span></a></li><li id="ca-edit" class="collapsible vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Triuk%C5%A1mas&action=edit" title="Redaguoti šio puslapio išeities kodą [e]" accesskey="e"><span>Keisti vikitekstą</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Triuk%C5%A1mas&action=history" title="Ankstesnės puslapio versijos [h]" accesskey="h"><span>Istorija</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Įrankiai" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Įrankiai</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Įrankiai</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">paslėpti</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Daugiau nustatymų" > <div class="vector-menu-heading"> Veiksmai </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/Triuk%C5%A1mas"><span>Skaityti</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Triuk%C5%A1mas&veaction=edit" title="Redaguoti šį puslapį [v]" accesskey="v"><span>Keisti</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Triuk%C5%A1mas&action=edit" title="Redaguoti šio puslapio išeities kodą [e]" accesskey="e"><span>Keisti vikitekstą</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Triuk%C5%A1mas&action=history"><span>Istorija</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Bendra </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Specialus:Kas_%C4%AF_%C4%8Dia_rodo/Triuk%C5%A1mas" title="Viki puslapių sąrašas, kuris nurodo čia [j]" accesskey="j"><span>Susiję straipsniai</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Specialus:Pakeitimai_susijusiuose_puslapiuose/Triuk%C5%A1mas" rel="nofollow" title="Paskutiniai keitimai puslapiuose, pasiekiamuose iš šio puslapio [k]" accesskey="k"><span>Susiję keitimai</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Specialus:Specialieji_puslapiai" title="Specialiųjų puslapių sąrašas [q]" accesskey="q"><span>Specialieji puslapiai</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Triuk%C5%A1mas&oldid=7256711" title="Nuolatinė nuoroda į šią puslapio versiją"><span>Nuolatinė nuoroda</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Triuk%C5%A1mas&action=info" title="Daugiau žinių apie šį puslapį"><span>Puslapio informacija</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Specialus:CiteThisPage&page=Triuk%C5%A1mas&id=7256711&wpFormIdentifier=titleform" title="Informacija kaip cituoti šį puslapį"><span>Cituoti straipsnį</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Specialus:UrlShortener&url=https%3A%2F%2Flt.wikipedia.org%2Fwiki%2FTriuk%25C5%25A1mas"><span>Gauti sutrumpintą URL nuorodą</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Specialus:QrCode&url=https%3A%2F%2Flt.wikipedia.org%2Fwiki%2FTriuk%25C5%25A1mas"><span>Atsisiųsti QR kodą</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Spausdinti/eksportuoti </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-create_a_book" class="mw-list-item"><a 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id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="lt" dir="ltr"><p><b>Triukšmas</b> – įvairaus pobūdžio nepageidaujamas <a href="/wiki/Garsas" title="Garsas">garsas</a> (akustinis triukšmas). Tai plačiausiai vartojama reikšmė. </p><p>Triukšmas taip pat gali būti <a href="/wiki/Ne%C5%A1antysis_signalas" class="mw-redirect" title="Nešantysis signalas">nešančio signalo</a> (nešlio) kitimai, nenešantys su siunčiamu pranešimu susijusios informacijos ar reikiamą savybę apibūdinančios informacijos (pvz., matavimuose)<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>. Ši triukšmo sąvoka naudojama signalų teorijoje, ryšiuose, matavimo teorijoje ir kt. </p><p>Tiek komunikacijoje (žmonių, gyvūnų, įrengimų), tiek matavimuose triukšmas gali lėtinti <a href="/wiki/Prane%C5%A1imas" title="Pranešimas">pranešimų</a> siuntimą (tai susiję su kodavimo būdu) ar matavimą (pvz., reikalauja daugelio pakartojimų įrašant <a href="/wiki/Elektrokardiograma" class="mw-redirect" title="Elektrokardiograma">elektrokardiogramas</a> ar <a href="/wiki/Elektroencefalograma" class="mw-redirect" title="Elektroencefalograma">elektroencefalogramas</a>), taip pat gali iškraipyti pranešimų prasmę ar matavimus, visiškai juos užblokuoti. </p><p><a href="/wiki/Elektronika" title="Elektronika">Elektronikoje</a> triukšmas yra parazitiniai elektroniniai signalai, atitinkantys akustinį triukšmą audiosistemose ar vizualinį triukšmą videosistemose, t. y. šalutinius, pagrindiniam informacijos srautui nepriskiriamus signalus ir nelaikomus naudinga informacija. <a href="/wiki/Informacijos_teorija" title="Informacijos teorija">Informacijos teorijoje</a> triukšmas, priešingai, laikomas tam tikra informacijos forma, tačiau ši informacija nesusijusi su pagrindiniu pranešimu. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Akustinis_triukšmas"><span id="Akustinis_triuk.C5.A1mas"></span>Akustinis triukšmas</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Triuk%C5%A1mas&veaction=edit&section=1" title="Redaguoti skyrelį: Akustinis triukšmas" class="mw-editsection-visualeditor"><span>redaguoti</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Triuk%C5%A1mas&action=edit&section=1" title="Edit section's source code: Akustinis triukšmas"><span>redaguoti vikitekstą</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Kalbant apie triukšmą kaip <a href="/wiki/Garsas" title="Garsas">garsą</a>, paprastai turima omenyje beprasmis (girdinčiojo atžvilgiu) ir <a href="/wiki/Garsumas" title="Garsumas">stipresnis</a> nei įprasta garsas. Kokio pobūdžio garsas yra interpretuojamas kaip triukšmas, priklauso ir nuo interpretuojančiojo santykio su tuo garsu. Aukšto <a href="/wiki/Garsas#Garso_stiprumas,_aukštis_ir_dažnis" title="Garsas">dažnio</a> garsas suvokiamas kaip labiau triukšmingas nei žemo dažnio (nors žemo dažnio triukšmas yra kenksmingesnis žmogaus <a href="/wiki/Sveikata" title="Sveikata">sveikatai</a>). Triukšmas, kurio stiprumas kinta, taip pat suvokiamas kaip stipresnis nei pastovaus intensyvumo garsas. Triukšmas atrodo silpnesnis, kai girdintysis gali lokalizuoti triukšmo šaltinį. Taip pat didesniu triukšmu laikomi garsai, kurie tą patį stiprumą pasiekia per trumpesnį laiką (staigus garsumo padidėjimas). </p><p>Garso, vaizdo bei <a href="/wiki/Transliacija" class="mw-disambig" title="Transliacija">transliacijos</a> sistemose garsiniu (audio) triukšmu vadinamas foninis garsas (šnypštimas, ūžimas, zvimbimas), kuris išryškėja tyliose programos dalyse. Pagal fizines charakteristikas toks triukšmas skirstomas pavadinant atitinkamomis spalvomis, remiantis apytikre analogija tarp garso dažnių ir <a href="/wiki/Spalva" title="Spalva">spalvų</a> bangų dažnių spektrų (pvz., <a href="/wiki/Baltasis_triuk%C5%A1mas" title="Baltasis triukšmas">baltasis triukšmas</a>, rausvasis triukšmas). </p><p>Garso inžinerijoje triukšmas taip pat reiškia elektroninį triukšmą, sukeliantį šnypštimo efektą. </p> <div class="mw-heading mw-heading2"><h2 id="Elektroninis_triukšmas"><span id="Elektroninis_triuk.C5.A1mas"></span>Elektroninis triukšmas</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Triuk%C5%A1mas&veaction=edit&section=2" title="Redaguoti skyrelį: Elektroninis triukšmas" class="mw-editsection-visualeditor"><span>redaguoti</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Triuk%C5%A1mas&action=edit&section=2" title="Edit section's source code: Elektroninis triukšmas"><span>redaguoti vikitekstą</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Elektroninis triukšmas susidaro elektroninėse grandinėse ir įrenginiuose dėl šiluminio triukšmo. Bet kurioje tokioje grandinėje vyksta atsitiktiniai <a href="/wiki/Srov%C4%97" class="mw-disambig" title="Srovė">srovės</a> bei <a href="/wiki/Elektrin%C4%97_%C4%AFtampa" title="Elektrinė įtampa">įtampos</a> svyravimai, sukelti atsitiktinio <a href="/wiki/Elektronas" title="Elektronas">elektronų</a> judėjimo dėl šiluminės energijos poveikio. Kuo temperatūra žemesnė, tuo ir šiluminis triukšmas mažesnis. </p> <div class="mw-heading mw-heading2"><h2 id="Triukšmas_matavimuose"><span id="Triuk.C5.A1mas_matavimuose"></span>Triukšmas matavimuose</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Triuk%C5%A1mas&veaction=edit&section=3" title="Redaguoti skyrelį: Triukšmas matavimuose" class="mw-editsection-visualeditor"><span>redaguoti</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Triuk%C5%A1mas&action=edit&section=3" title="Edit section's source code: Triukšmas matavimuose"><span>redaguoti vikitekstą</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Rodmenų kitimas dėl matuojamo signalo atsitiktinio kitimo yra triukšmas. Idealaus matavimo atveju matuoklio rodomas rodmuo turi stabiliai ir tiksliai atitikti matuojamą savybę. Kai matuojama savybė nekinta, matuoklio rodmenys turėtų nekisti. Tačiau atsitiktinis matuojamo signalo kitimas (susijęs, pvz., su fliuktuacijomis elektrinio matuoklio grandynuose) paprastai sukelia rodmenų kitimą, kuris turi savo <a href="/wiki/Skirstinys" title="Skirstinys">skirstinį</a>. Šio skirstinio <a href="/wiki/Standartinis_nuokrypis" title="Standartinis nuokrypis">standartinis nuokrypis</a> proporcingas matavimo triukšmui – standartinis nuokrypis didesnis, tuo triukšmingesnis matavimas. </p> <div class="mw-heading mw-heading2"><h2 id="Triukšmo_įvertinimas"><span id="Triuk.C5.A1mo_.C4.AFvertinimas"></span>Triukšmo įvertinimas</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Triuk%C5%A1mas&veaction=edit&section=4" title="Redaguoti skyrelį: Triukšmo įvertinimas" class="mw-editsection-visualeditor"><span>redaguoti</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Triuk%C5%A1mas&action=edit&section=4" title="Edit section's source code: Triukšmo įvertinimas"><span>redaguoti vikitekstą</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Triukšmas vertinamas įvairiais būdais. Triukšmo charakteristikos: </p> <ul><li><i>triukšmo lygis</i> (<i>noise level</i>) – triukšmo <a href="/wiki/Garsumas" title="Garsumas">galia</a>, išmatuota atskaitos galios atžvilgiu. Triukšmo lygis dažniausiai išreiškiamas <a href="/wiki/Decibelas" title="Decibelas">decibelais</a> atskaitos galios atžvilgiu.</li> <li><i>signalo ir triukšmo santykis</i> (<i>Signal – to – noise ratio</i>) – vidutinės informacijos nešlio galios ir vidutinės ryšių linijos galios dalmuo. Analoginių signalų atveju signalo ir triukšmo santykis (STS) lemia informacijos atkūrimo tikslumą, o skaitmeninių signalų atveju atkūrimo tikslumas apibūdinamas bitų klaidų dažniu, kuris yra STS funkcija.</li></ul> <div class="mw-heading mw-heading2"><h2 id="Triukšmo_mažinimas"><span id="Triuk.C5.A1mo_ma.C5.BEinimas"></span>Triukšmo mažinimas</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Triuk%C5%A1mas&veaction=edit&section=5" title="Redaguoti skyrelį: Triukšmo mažinimas" class="mw-editsection-visualeditor"><span>redaguoti</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Triuk%C5%A1mas&action=edit&section=5" title="Edit section's source code: Triukšmo mažinimas"><span>redaguoti vikitekstą</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Tiek komunikacijų, tiek matavimo sistemose yra svarbus triukšmo mažinimas<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup>. Vienas dažniausių triukšmo mažinimo būdų yra signalų filtravimas. </p> <div class="mw-heading mw-heading2"><h2 id="Išnašos"><span id="I.C5.A1na.C5.A1os"></span>Išnašos</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Triuk%C5%A1mas&veaction=edit&section=6" title="Redaguoti skyrelį: Išnašos" class="mw-editsection-visualeditor"><span>redaguoti</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Triuk%C5%A1mas&action=edit&section=6" title="Edit section's source code: Išnašos"><span>redaguoti vikitekstą</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="references-small" style="list-style-type: decimal;"> <ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://lorien.ncl.ac.uk/ming/filter/filter.htm">Triukšmas matavimuose</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20080312013346/http://lorien.ncl.ac.uk/ming/filter/filter.htm">Archyvuota kopija</a> 2008-03-12 iš <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a> projekto.</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.capgo.com/Resources/Measurement/Noise/Noise.html">Triukšmas ir matavimai</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20080221193727/http://www.capgo.com/Resources/Measurement/Noise/Noise.html">Archyvuota kopija</a> 2008-02-21 iš <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a> projekto.</span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><a href="#cite_ref-3">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20081006214844/http://www.campbellsci.com/documents/whitepapers/mnoise.pdf">Garso mažinimo problemos</a></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><a href="#cite_ref-4">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://zone.ni.com/devzone/cda/ph/p/id/154">Garso mažinimas</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20081203110902/http://zone.ni.com/devzone/cda/ph/p/id/154">Archyvuota kopija</a> 2008-12-03 iš <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a> projekto.</span> </li> </ol> </div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1&useformat=desktop" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Rodomas puslapis "<a dir="ltr" href="https://lt.wikipedia.org/w/index.php?title=Triukšmas&oldid=7256711">https://lt.wikipedia.org/w/index.php?title=Triukšmas&oldid=7256711</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Specialus:Kategorijos" title="Specialus:Kategorijos">Kategorijos</a>: <ul><li><a href="/wiki/Kategorija:Akustika" title="Kategorija:Akustika">Akustika</a></li><li><a href="/wiki/Kategorija:Elektronika" title="Kategorija:Elektronika">Elektronika</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Paslėpta kategorija: <ul><li><a href="/wiki/Kategorija:Webarchive_%C5%A1ablono_Wayback_nuorodos" title="Kategorija:Webarchive šablono Wayback nuorodos">Webarchive šablono Wayback nuorodos</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> Šis puslapis paskutinį kartą keistas 24 balandžio 2024 10:37.</li> <li id="footer-info-copyright">Tekstas pateikiamas pagal <a rel="nofollow" class="external text" href="//creativecommons.org/licenses/by-sa/4.0/">Creative Commons Attribution/Share-Alike Licenciją</a>; gali būti taikomos papildomos sąlygos. 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