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class="mw-list-item"><a href="/wiki/Special:%E6%88%91%E7%9A%84%E8%B4%A1%E7%8C%AE" title="来自此IP地址的编辑列表[y]" accesskey="y"><span>贡献</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Special:%E6%88%91%E7%9A%84%E8%AE%A8%E8%AE%BA%E9%A1%B5" title="对于来自此IP地址编辑的讨论[n]" accesskey="n"><span>讨论</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="站点"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="目录" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">目录</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">移至侧栏</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">隐藏</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">序言</div> </a> </li> <li id="toc-Examples_of_sound_pressure_and_sound_pressure_levels" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Examples_of_sound_pressure_and_sound_pressure_levels"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Examples of sound pressure and sound pressure levels</span> </div> </a> <ul id="toc-Examples_of_sound_pressure_and_sound_pressure_levels-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-参考资料" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#参考资料"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>参考资料</span> </div> </a> <ul id="toc-参考资料-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="目录" 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="开关目录" > <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">开关目录</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">声压</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="前往另一种语言写成的文章。33种语言可用" > <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-33" 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">33种语言</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%B6%D8%BA%D8%B7_%D8%A7%D9%84%D8%B5%D9%88%D8%AA" title="ضغط الصوت – 阿拉伯语" lang="ar" hreflang="ar" data-title="ضغط الصوت" data-language-autonym="العربية" data-language-local-name="阿拉伯语" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-bar mw-list-item"><a href="https://bar.wikipedia.org/wiki/Schoidruck" title="Schoidruck – 巴伐利亞文" lang="bar" hreflang="bar" data-title="Schoidruck" data-language-autonym="Boarisch" data-language-local-name="巴伐利亞文" class="interlanguage-link-target"><span>Boarisch</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%97%D0%B2%D1%83%D0%BA%D0%BE%D0%B2%D0%BE_%D0%BD%D0%B0%D0%BB%D1%8F%D0%B3%D0%B0%D0%BD%D0%B5" title="Звуково налягане – 保加利亚语" lang="bg" hreflang="bg" data-title="Звуково налягане" data-language-autonym="Български" data-language-local-name="保加利亚语" 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%B6%E0%A6%AC%E0%A7%8D%E0%A6%A6%E0%A6%9A%E0%A6%BE%E0%A6%AA" title="শব্দচাপ – 孟加拉语" lang="bn" hreflang="bn" data-title="শব্দচাপ" data-language-autonym="বাংলা" data-language-local-name="孟加拉语" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Pressi%C3%B3_sonora" title="Pressió sonora – 加泰罗尼亚语" lang="ca" hreflang="ca" data-title="Pressió sonora" data-language-autonym="Català" data-language-local-name="加泰罗尼亚语" 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/Akustick%C3%BD_tlak" title="Akustický tlak – 捷克语" lang="cs" hreflang="cs" data-title="Akustický tlak" data-language-autonym="Čeština" data-language-local-name="捷克语" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Lydtryk" title="Lydtryk – 丹麦语" lang="da" hreflang="da" data-title="Lydtryk" data-language-autonym="Dansk" data-language-local-name="丹麦语" 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/Schalldruck" title="Schalldruck – 德语" lang="de" hreflang="de" data-title="Schalldruck" data-language-autonym="Deutsch" data-language-local-name="德语" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Sound_pressure" title="Sound pressure – 英语" lang="en" hreflang="en" data-title="Sound pressure" data-language-autonym="English" data-language-local-name="英语" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Presi%C3%B3n_sonora" title="Presión sonora – 西班牙语" lang="es" hreflang="es" data-title="Presión sonora" data-language-autonym="Español" data-language-local-name="西班牙语" 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/Helir%C3%B5hk" title="Helirõhk – 爱沙尼亚语" lang="et" hreflang="et" data-title="Helirõhk" data-language-autonym="Eesti" data-language-local-name="爱沙尼亚语" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%81%D8%B4%D8%A7%D8%B1_%D8%B5%D8%AF%D8%A7" title="فشار صدا – 波斯语" lang="fa" hreflang="fa" data-title="فشار صدا" data-language-autonym="فارسی" data-language-local-name="波斯语" 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/%C3%84%C3%A4nenpaine" title="Äänenpaine – 芬兰语" lang="fi" hreflang="fi" data-title="Äänenpaine" data-language-autonym="Suomi" data-language-local-name="芬兰语" 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/Pression_acoustique" title="Pression acoustique – 法语" lang="fr" hreflang="fr" data-title="Pression acoustique" data-language-autonym="Français" data-language-local-name="法语" 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/SPL" title="SPL – 加利西亚语" lang="gl" hreflang="gl" data-title="SPL" data-language-autonym="Galego" data-language-local-name="加利西亚语" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Zvu%C4%8Dni_tlak" title="Zvučni tlak – 克罗地亚语" lang="hr" hreflang="hr" data-title="Zvučni tlak" data-language-autonym="Hrvatski" data-language-local-name="克罗地亚语" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%81%D5%A1%D5%B5%D5%B6%D5%AB_%D5%B3%D5%B6%D5%B7%D5%B8%D6%82%D5%B4" title="Ձայնի ճնշում – 亚美尼亚语" lang="hy" hreflang="hy" data-title="Ձայնի ճնշում" data-language-autonym="Հայերեն" data-language-local-name="亚美尼亚语" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Tekanan_bunyi" title="Tekanan bunyi – 印度尼西亚语" lang="id" hreflang="id" data-title="Tekanan bunyi" data-language-autonym="Bahasa Indonesia" data-language-local-name="印度尼西亚语" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/SPL" title="SPL – 冰岛语" lang="is" hreflang="is" data-title="SPL" data-language-autonym="Íslenska" data-language-local-name="冰岛语" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Pressione_acustica" title="Pressione acustica – 意大利语" lang="it" hreflang="it" data-title="Pressione acustica" data-language-autonym="Italiano" data-language-local-name="意大利语" 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/%E9%9F%B3%E5%9C%A7" title="音圧 – 日语" lang="ja" hreflang="ja" data-title="音圧" data-language-autonym="日本語" data-language-local-name="日语" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%9D%8C%EC%95%95" title="음압 – 韩语" lang="ko" hreflang="ko" data-title="음압" data-language-autonym="한국어" data-language-local-name="韩语" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/Pression_son%C3%B2ra" title="Pression sonòra – 倫巴底文" lang="lmo" hreflang="lmo" data-title="Pression sonòra" data-language-autonym="Lombard" data-language-local-name="倫巴底文" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Geluidsdruk" title="Geluidsdruk – 荷兰语" lang="nl" hreflang="nl" data-title="Geluidsdruk" data-language-autonym="Nederlands" data-language-local-name="荷兰语" 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/Lydtrykk" title="Lydtrykk – 挪威尼诺斯克语" lang="nn" hreflang="nn" data-title="Lydtrykk" data-language-autonym="Norsk nynorsk" data-language-local-name="挪威尼诺斯克语" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Ci%C5%9Bnienie_akustyczne" title="Ciśnienie akustyczne – 波兰语" lang="pl" hreflang="pl" data-title="Ciśnienie akustyczne" data-language-autonym="Polski" data-language-local-name="波兰语" 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/SPL" title="SPL – 葡萄牙语" lang="pt" hreflang="pt" data-title="SPL" data-language-autonym="Português" data-language-local-name="葡萄牙语" 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%97%D0%B2%D1%83%D0%BA%D0%BE%D0%B2%D0%BE%D0%B5_%D0%B4%D0%B0%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D0%B5" title="Звуковое давление – 俄语" lang="ru" hreflang="ru" data-title="Звуковое давление" data-language-autonym="Русский" data-language-local-name="俄语" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Zvo%C4%8Dni_tlak" title="Zvočni tlak – 斯洛文尼亚语" lang="sl" hreflang="sl" data-title="Zvočni tlak" data-language-autonym="Slovenščina" data-language-local-name="斯洛文尼亚语" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Ljudtryck" title="Ljudtryck – 瑞典语" lang="sv" hreflang="sv" data-title="Ljudtryck" data-language-autonym="Svenska" data-language-local-name="瑞典语" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%97%D0%B2%D1%83%D0%BA%D0%BE%D0%B2%D0%B8%D0%B9_%D1%82%D0%B8%D1%81%D0%BA" title="Звуковий тиск – 乌克兰语" lang="uk" hreflang="uk" data-title="Звуковий тиск" data-language-autonym="Українська" data-language-local-name="乌克兰语" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/%C3%81p_su%E1%BA%A5t_%C3%A2m_thanh" title="Áp suất âm thanh – 越南语" lang="vi" hreflang="vi" data-title="Áp suất âm thanh" data-language-autonym="Tiếng Việt" data-language-local-name="越南语" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E8%81%B2%E5%A3%93" title="聲壓 – 粤语" lang="yue" hreflang="yue" data-title="聲壓" data-language-autonym="粵語" data-language-local-name="粤语" 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/Q1068172#sitelinks-wikipedia" title="编辑跨语言链接" class="wbc-editpage">编辑链接</a></span></div> </div> 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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">工具</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">移至侧栏</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">隐藏</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="更多选项" > <div class="vector-menu-heading"> 操作 </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/%E5%A3%B0%E5%8E%8B"><span>阅读</span></a></li><li id="ca-more-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=%E5%A3%B0%E5%8E%8B&action=edit&oldid=21375021" title="编辑该页面[e]" accesskey="e"><span>编辑</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=%E5%A3%B0%E5%8E%8B&action=history"><span>查看历史</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> 常规 </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Special:%E9%93%BE%E5%85%A5%E9%A1%B5%E9%9D%A2/%E5%A3%B0%E5%8E%8B" title="列出所有与本页相链的页面[j]" accesskey="j"><span>链入页面</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Special:%E9%93%BE%E5%87%BA%E6%9B%B4%E6%94%B9/%E5%A3%B0%E5%8E%8B" rel="nofollow" title="页面链出所有页面的更改[k]" accesskey="k"><span>相关更改</span></a></li><li id="t-upload" class="mw-list-item"><a href="/wiki/Project:%E4%B8%8A%E4%BC%A0" title="上传图像或多媒体文件[u]" accesskey="u"><span>上传文件</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Special:%E7%89%B9%E6%AE%8A%E9%A1%B5%E9%9D%A2" title="全部特殊页面的列表[q]" accesskey="q"><span>特殊页面</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=%E5%A3%B0%E5%8E%8B&oldid=21375021" title="此页面该修订版本的固定链接"><span>固定链接</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=%E5%A3%B0%E5%8E%8B&action=info" title="关于此页面的更多信息"><span>页面信息</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Special:%E5%BC%95%E7%94%A8%E6%AD%A4%E9%A1%B5%E9%9D%A2&page=%E5%A3%B0%E5%8E%8B&id=21375021&wpFormIdentifier=titleform" title="有关如何引用此页面的信息"><span>引用此页</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Special:URL%E7%BC%A9%E7%9F%AD%E7%A8%8B%E5%BA%8F&url=https%3A%2F%2Fzh.wikipedia.org%2Fw%2Findex.php%3Ftitle%3D%25E5%25A3%25B0%25E5%258E%258B%26oldid%3D21375021"><span>获取短链接</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Special:QrCode&url=https%3A%2F%2Fzh.wikipedia.org%2Fw%2Findex.php%3Ftitle%3D%25E5%25A3%25B0%25E5%258E%258B%26oldid%3D21375021"><span>下载二维码</span></a></li> </ul> </div> </div> <div id="p-electronpdfservice-sidebar-portlet-heading" class="vector-menu mw-portlet mw-portlet-electronpdfservice-sidebar-portlet-heading" > <div class="vector-menu-heading"> 打印/导出 </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-print" class="mw-list-item"><a href="javascript:print();" rel="alternate" title="本页面的可打印版本[p]" accesskey="p"><span>打印页面</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> 在其他项目中 </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="wb-otherproject-link wb-otherproject-commons mw-list-item"><a href="https://commons.wikimedia.org/wiki/Category:Sound_pressure" hreflang="en"><span>维基共享资源</span></a></li><li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q1068172" title="链接到连接的数据仓库项目[g]" accesskey="g"><span>维基数据项目</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="页面工具"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="外观"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">外观</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">移至侧栏</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">隐藏</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">维基百科，自由的百科全书</div> </div> <div id="contentSub"><div id="mw-content-subtitle"><div class="cdx-message cdx-message--block cdx-message--warning mw-revision"><span class="cdx-message__icon"></span><div class="cdx-message__content"><div id="mw-revision-info"><p><b>这是本页的一个<a href="/wiki/Help:%E9%A1%B5%E9%9D%A2%E5%8E%86%E5%8F%B2" title="Help:页面历史">历史版本</a>，由<span id="mw-revision-name"><a href="/wiki/User:Ffffnm" class="mw-userlink" title="User:Ffffnm" data-mw-revid="21375021"><bdi>Ffffnm</bdi></a><span class="mw-usertoollinks">（<a href="/wiki/User_talk:Ffffnm" class="mw-usertoollinks-talk" title="User talk:Ffffnm">留言</a> | <a href="/wiki/Special:%E7%94%A8%E6%88%B7%E8%B4%A1%E7%8C%AE/Ffffnm" class="mw-usertoollinks-contribs" title="Special:用户贡献/Ffffnm">贡献</a>）</span></span>在<span id="mw-revision-date">2012年5月27日 (日) 14:02</span><span id="mw-revision-summary"></span>编辑。这可能和<span class="plainlinks"><a class="external text" href="https://zh.wikipedia.org/wiki/%E5%A3%B0%E5%8E%8B">当前版本</a></span>存在着巨大的差异。</b></p><div id="revision-info-plain" style="display: none;">由<a href="/wiki/User:Ffffnm" class="mw-userlink" title="User:Ffffnm" data-mw-revid="21375021"><bdi>Ffffnm</bdi></a><span class="mw-usertoollinks">（<a href="/wiki/User_talk:Ffffnm" class="mw-usertoollinks-talk" title="User talk:Ffffnm">留言</a> | <a href="/wiki/Special:%E7%94%A8%E6%88%B7%E8%B4%A1%E7%8C%AE/Ffffnm" class="mw-usertoollinks-contribs" title="Special:用户贡献/Ffffnm">贡献</a>）</span>在2012年5月27日 (日) 14:02编辑的版本</div></div><div id="mw-revision-nav">(<a href="/w/index.php?title=%E5%A3%B0%E5%8E%8B&diff=prev&oldid=21375021" title="声压">差异</a>) <a href="/w/index.php?title=%E5%A3%B0%E5%8E%8B&direction=prev&oldid=21375021" title="声压">←上一修订</a> | <a href="/wiki/%E5%A3%B0%E5%8E%8B" title="声压">最后版本</a> (<a href="/w/index.php?title=%E5%A3%B0%E5%8E%8B&diff=cur&oldid=21375021" title="声压">差异</a>) | <a href="/w/index.php?title=%E5%A3%B0%E5%8E%8B&direction=next&oldid=21375021" title="声压">下一修订→</a> (<a href="/w/index.php?title=%E5%A3%B0%E5%8E%8B&diff=next&oldid=21375021" title="声压">差异</a>)</div></div></div></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="zh" dir="ltr"><style data-mw-deduplicate="TemplateStyles:r83732082">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}body.skin-minerva .mw-parser-output .infobox-header,body.skin-minerva .mw-parser-output .infobox-subheader,body.skin-minerva .mw-parser-output .infobox-above,body.skin-minerva .mw-parser-output .infobox-title,body.skin-minerva .mw-parser-output .infobox-image,body.skin-minerva .mw-parser-output .infobox-full-data,body.skin-minerva .mw-parser-output .infobox-below{text-align:center}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}html.skin-theme-clientpref-night .mw-parser-output .infobox td div:not(.notheme)[style]{background:transparent!important;color:var(--color-base,#202122)}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox td div:not(.notheme)[style]{background:transparent!important;color:var(--color-base,#202122)}}html.skin-theme-clientpref-night .mw-parser-output .infobox td div.NavHead:not(.notheme)[style]{background:transparent!important}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox td div.NavHead:not(.notheme)[style]{background:transparent!important}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox" style="width:19.0em;"><tbody><tr><th colspan="2" class="infobox-above" style="background:#ccf;padding:0.3em;font-size:125%;">声音的衡量</th></tr><tr><th scope="row" class="infobox-label" style="font-weight:normal;;"><div style="background:#ddf;padding:0.15em 0.5em;text-align: center;">特征</div></th><td class="infobox-data" style=""><div style="background:#ddf;padding:0.15em 0.5em;text-align: center;">符号</div></td></tr><tr><th scope="row" class="infobox-label" style="font-weight:normal;;"><span style="padding-left: 0.3em;"> </span><a class="mw-selflink selflink">声压</a></th><td class="infobox-data" style=""><span style="padding-left: 0.3em;"> </span><i>p</i>, SPL,L<sub>PA</sub></td></tr><tr><th scope="row" class="infobox-label" style="font-weight:normal;;"><span style="padding-left: 0.3em;"> </span><a href="/w/index.php?title=%E7%B2%92%E5%AD%90%E9%80%9F%E5%BA%A6&action=edit&redlink=1" class="new" title="粒子速度（页面不存在）">粒子速度</a></th><td class="infobox-data" style=""><span style="padding-left: 0.3em;"> </span><i>v</i>, SVL</td></tr><tr><th scope="row" class="infobox-label" style="font-weight:normal;;"><span style="padding-left: 0.3em;"> </span><a href="/w/index.php?title=%E7%B2%92%E5%AD%90%E4%BD%8D%E7%A7%BB&action=edit&redlink=1" class="new" title="粒子位移（页面不存在）">粒子位移</a></th><td class="infobox-data" style=""><span style="padding-left: 0.3em;"> </span><i>δ</i></td></tr><tr><th scope="row" class="infobox-label" style="font-weight:normal;;"><span style="padding-left: 0.3em;"> </span><a href="/wiki/%E9%9F%B3%E5%BC%BA" title="音强">声强</a></th><td class="infobox-data" style=""><span style="padding-left: 0.3em;"> </span><i>I</i>, SIL</td></tr><tr><th scope="row" class="infobox-label" style="font-weight:normal;;"><span style="padding-left: 0.3em;"> </span><a href="/w/index.php?title=%E5%A3%B0%E5%8A%9F%E7%8E%87&action=edit&redlink=1" class="new" title="声功率（页面不存在）">声功率</a></th><td class="infobox-data" style=""><span style="padding-left: 0.3em;"> </span><i>P</i>, SWL, L<sub>WA</sub></td></tr><tr><th scope="row" class="infobox-label" style="font-weight:normal;;"><span style="padding-left: 0.3em;"> </span><a href="/wiki/%E5%A3%B0%E8%83%BD" title="声能">声能</a></th><td class="infobox-data" style=""><span style="padding-left: 0.3em;"> </span><i>W</i></td></tr><tr><th scope="row" class="infobox-label" style="font-weight:normal;;"><span style="padding-left: 0.3em;"> </span><a href="/wiki/%E5%A3%B0%E8%83%BD%E5%AF%86%E5%BA%A6" class="mw-redirect" title="声能密度">声能密度</a></th><td class="infobox-data" style=""><span style="padding-left: 0.3em;"> </span><i>w</i></td></tr><tr><th scope="row" class="infobox-label" style="font-weight:normal;;"><span style="padding-left: 0.3em;"> </span><a href="/w/index.php?title=%E6%9A%B4%E9%9C%B2%E5%A3%B0%E7%BA%A7&action=edit&redlink=1" class="new" title="暴露声级（页面不存在）">暴露声级</a></th><td class="infobox-data" style=""><span style="padding-left: 0.3em;"> </span><i>E</i>, SEL</td></tr><tr><th scope="row" class="infobox-label" style="font-weight:normal;;"><span style="padding-left: 0.3em;"> </span><a href="/wiki/%E5%A3%B0%E9%98%BB%E6%8A%97" class="mw-redirect" title="声阻抗">声阻抗</a></th><td class="infobox-data" style=""><span style="padding-left: 0.3em;"> </span><i>Z</i></td></tr><tr><th scope="row" class="infobox-label" style="font-weight:normal;;"><span style="padding-left: 0.3em;"> </span><a href="/w/index.php?title=%E5%A3%B0%E9%A2%91&action=edit&redlink=1" class="new" title="声频（页面不存在）">声频</a></th><td class="infobox-data" style=""><span style="padding-left: 0.3em;"> </span>AF</td></tr><tr><th scope="row" class="infobox-label" style="font-weight:normal;;"><span style="padding-left: 0.3em;"> </span><a href="/w/index.php?title=%E4%BC%A0%E8%BE%93%E6%8D%9F%E8%80%97_(%E7%AE%A1%E9%81%93%E5%A3%B0%E5%AD%A6)&action=edit&redlink=1" class="new" title="传输损耗 (管道声学)（页面不存在）">传输损耗</a></th><td class="infobox-data" style=""><span style="padding-left: 0.3em;"> </span>TL</td></tr><tr><td colspan="2" class="infobox-full-data" style=""><hr /></td></tr><tr><td colspan="2" class="infobox-navbar"><style data-mw-deduplicate="TemplateStyles:r84265675">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul ol,.mw-parser-output .hlist ul ul{display:inline}.mw-parser-output .hlist .mw-empty-li{display:none}.mw-parser-output .hlist dt::after{content:" :"}.mw-parser-output .hlist dd::after,.mw-parser-output .hlist li::after{content:" · ";font-weight:bold}.mw-parser-output .hlist-pipe dd::after,.mw-parser-output .hlist-pipe li::after{content:" | ";font-weight:normal}.mw-parser-output .hlist-hyphen dd::after,.mw-parser-output .hlist-hyphen li::after{content:" - ";font-weight:normal}.mw-parser-output .hlist-comma dd::after,.mw-parser-output .hlist-comma li::after{content:"、";font-weight:normal}.mw-parser-output .hlist dd:last-child::after,.mw-parser-output .hlist dt:last-child::after,.mw-parser-output .hlist li:last-child::after{content:none}.mw-parser-output .hlist ol{counter-reset:listitem}.mw-parser-output .hlist ol>li{counter-increment:listitem}.mw-parser-output .hlist ol>li::before{content:" "counter(listitem)"\a0 "}.mw-parser-output .hlist dd ol>li:first-child::before,.mw-parser-output .hlist dt ol>li:first-child::before,.mw-parser-output .hlist li ol>li:first-child::before{content:"（"counter(listitem)"\a0 "}.mw-parser-output ul.cslist,.mw-parser-output ul.sslist{margin:0;padding:0;display:inline-block;list-style:none}.mw-parser-output .cslist li,.mw-parser-output .sslist li{margin:0;display:inline-block}.mw-parser-output .cslist li::after{content:"，"}.mw-parser-output .sslist li::after{content:"；"}.mw-parser-output .cslist li:last-child::after,.mw-parser-output .sslist li:last-child::after{content:none}</style><style data-mw-deduplicate="TemplateStyles:r84244141">.mw-parser-output .navbar{display:inline;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:110%;margin:0 8em}.mw-parser-output .navbar-ct-mini{font-size:110%;margin:0 5em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Sound_measurements" title="Template:Sound measurements"><abbr title="查看该模板">查</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Sound_measurements" title="Template talk:Sound measurements"><abbr title="讨论该模板">论</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:%E7%BC%96%E8%BE%91%E9%A1%B5%E9%9D%A2/Template:Sound_measurements" title="Special:编辑页面/Template:Sound measurements"><abbr title="编辑该模板">编</abbr></a></li></ul></div></td></tr></tbody></table> <p><b>声压</b>（acoustic pressure）是指<a href="/wiki/%E5%A3%B0%E6%B3%A2" title="声波">声波</a>通过某种媒质时，由振动所产生的<a href="/wiki/%E5%8E%8B%E5%BC%BA" title="压强">压强</a>改变量。就声波在空气中传播而言，空气的疏密程度会随声波而改变，这样，空气的压强也会随之改变，即在原有<a href="/wiki/%E5%A4%A7%E6%B0%94%E5%8E%8B" class="mw-redirect" title="大气压">大气压</a>的基础上又产生了一个随声波变化的交变压强，此交变压强即为声压。声压常用字母 "p" 表示，在<a href="/wiki/%E5%9B%BD%E9%99%85%E5%8D%95%E4%BD%8D%E5%88%B6" title="国际单位制">国际单位制</a>中，声压的衡量单位是<a href="/wiki/%E5%B8%95%E6%96%AF%E5%8D%A1" title="帕斯卡">帕斯卡</a>（符号Pa）。 </p><p><br /> </p><p><b>声压级</b>（SPL）是指以<a href="/wiki/%E5%AF%B9%E6%95%B0%E5%B0%BA" class="mw-redirect" title="对数尺">对数尺</a>衡量<b>有效声压</b>相对于一个基准值的大小，用<a href="/wiki/%E5%88%86%E8%B4%9D" class="mw-redirect" title="分贝">分贝</a>（dB）来描述其与基准值的关系。人类的对于 1<a href="/wiki/KHz" class="mw-redirect" title="KHz">KHz</a> 的声音的<a href="/wiki/%E8%81%BD%E9%96%BE" title="聽閾">听阈</a>（即产生听觉的最低声压）为 20µPa，通常以此作为声压级的基准值。 </p> <div class="mw-heading mw-heading3"><h3 id="Examples_of_sound_pressure_and_sound_pressure_levels">Examples of sound pressure and sound pressure levels</h3></div> <p>Sound pressure in air: </p> <table class="wikitable"> <tbody><tr> <th>Source of sound</th> <th>Sound pressure</th> <th>Sound pressure level </th></tr> <tr> <th>Sound in air</th> <th><a href="/w/index.php?title=Pascal_(unit)&action=edit&redlink=1" class="new" title="Pascal (unit)（页面不存在）">pascal</a> RMS</th> <th><a href="/wiki/Decibel" class="mw-redirect" title="Decibel">dB</a> re 20 μPa </th></tr> <tr> <td><a href="/w/index.php?title=Shock_wave&action=edit&redlink=1" class="new" title="Shock wave（页面不存在）">Shockwave</a> (distorted sound waves > 1 <a href="/w/index.php?title=Atmosphere_(unit)&action=edit&redlink=1" class="new" title="Atmosphere (unit)（页面不存在）">atm</a>; waveform valleys are clipped at zero pressure)</td> <td align="right">>101,325 Pa</td> <td align="right">>194 dB </td></tr> <tr> <td>Theoretical limit for undistorted sound at 1 <a href="/w/index.php?title=Atmosphere_(unit)&action=edit&redlink=1" class="new" title="Atmosphere (unit)（页面不存在）">atmosphere</a> environmental <a href="/w/index.php?title=Pressure&action=edit&redlink=1" class="new" title="Pressure（页面不存在）">pressure</a></td> <td align="right">101,325 Pa</td> <td align="right">~194.094 dB </td></tr> <tr> <td><a href="/w/index.php?title=Stun_grenades&action=edit&redlink=1" class="new" title="Stun grenades（页面不存在）">Stun grenades</a></td> <td align="right">6,000–20,000 Pa</td> <td align="right">170–180 dB </td></tr> <tr> <td>Rocket launch equipment acoustic tests</td> <td align="right">~4000 Pa</td> <td align="right">~165 dB </td></tr> <tr> <td>Simple open-ended <a href="/w/index.php?title=Thermoacoustics&action=edit&redlink=1" class="new" title="Thermoacoustics（页面不存在）">thermoacoustic</a> device<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></td> <td align="right">12,619 Pa</td> <td align="right">176 dB </td></tr> <tr> <td><a href="/wiki/.30-06_Springfield" class="mw-redirect" title=".30-06 Springfield">.30-06 rifle</a> being fired 1 <a href="/w/index.php?title=Meter&action=edit&redlink=1" class="new" title="Meter（页面不存在）">m</a> to shooter's side</td> <td align="right">7,265 Pa</td> <td align="right">171 dB (peak) </td></tr> <tr> <td><a href="/w/index.php?title=M1_Garand&action=edit&redlink=1" class="new" title="M1 Garand（页面不存在）">M1 Garand</a> rifle being fired at 1 m</td> <td align="right">5,023 Pa</td> <td align="right">168 dB </td></tr> <tr> <td><a href="/w/index.php?title=Jet_engine&action=edit&redlink=1" class="new" title="Jet engine（页面不存在）">Jet engine</a> at 30 m</td> <td align="right">632 Pa</td> <td align="right">150 dB </td></tr> <tr> <td><a href="/w/index.php?title=Threshold_of_pain&action=edit&redlink=1" class="new" title="Threshold of pain（页面不存在）">Threshold of pain</a></td> <td align="right">63.2 Pa</td> <td align="right">130 dB </td></tr> <tr> <td><a href="/wiki/Vuvuzela" class="mw-redirect" title="Vuvuzela">Vuvuzela</a> horn at 1 m</td> <td align="right">20 Pa</td> <td align="right">120 dB(A)<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> </td></tr> <tr> <td><a href="/w/index.php?title=Hearing_damage&action=edit&redlink=1" class="new" title="Hearing damage（页面不存在）">Hearing damage</a> (possible)</td> <td align="right">20 Pa</td> <td align="right">approx. 120 dB </td></tr> <tr> <td><a href="/w/index.php?title=Jet_engine&action=edit&redlink=1" class="new" title="Jet engine（页面不存在）">Jet engine</a> at 100 m</td> <td align="right">6.32 – 200 Pa</td> <td align="right">110 – 140 dB </td></tr> <tr> <td><a href="/w/index.php?title=Jack_hammer&action=edit&redlink=1" class="new" title="Jack hammer（页面不存在）">Jack hammer</a> at 1 m</td> <td align="right">2 Pa</td> <td align="right">approx. 100 dB </td></tr> <tr> <td>Traffic on a busy roadway at 10 m</td> <td align="right">2×10<sup>−1</sup> – 6.32×10<sup>−1</sup> Pa</td> <td align="right">80 – 90 dB </td></tr> <tr> <td><a href="/w/index.php?title=Hearing_damage&action=edit&redlink=1" class="new" title="Hearing damage（页面不存在）">Hearing damage</a> (over long-term exposure, need not be continuous)</td> <td align="right">0.356<sup></sup> Pa</td> <td align="right">85 dB<sup id="cite_ref-Hamby_3-0" class="reference"><a href="#cite_note-Hamby-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/w/index.php?title=Automobile&action=edit&redlink=1" class="new" title="Automobile（页面不存在）">Passenger car</a> at 10 m</td> <td align="right">2×10<sup>−2</sup> – 2×10<sup>−1</sup> Pa</td> <td align="right">60 – 80 dB </td></tr> <tr> <td><a href="/wiki/United_States_Environmental_Protection_Agency" class="mw-redirect" title="United States Environmental Protection Agency">EPA</a>-identified maximum to protect against hearing loss and other disruptive effects from noise, such as sleep disturbance, stress, learning detriment, etc.</td> <td align="right"></td> <td align="right">70 dB<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> </td></tr> <tr> <td>Handheld electric <a href="/w/index.php?title=Mixer_(cooking)&action=edit&redlink=1" class="new" title="Mixer (cooking)（页面不存在）">mixer</a></td> <td align="right"></td> <td align="right">65 dB </td></tr> <tr> <td>TV (set at home level) at 1 m</td> <td align="right">2×10<sup>−2</sup> Pa</td> <td align="right">approx. 60 dB </td></tr> <tr> <td><a href="/w/index.php?title=Washing_machine&action=edit&redlink=1" class="new" title="Washing machine（页面不存在）">Washing machine</a>, <a href="/w/index.php?title=Dish_washer&action=edit&redlink=1" class="new" title="Dish washer（页面不存在）">dish washer</a></td> <td align="right"></td> <td align="right">50-53 dB </td></tr> <tr> <td>Normal conversation at 1 m</td> <td align="right">2×10<sup>−3</sup> – 2×10<sup>−2</sup> Pa</td> <td align="right">40 – 60 dB </td></tr> <tr> <td>Very calm room</td> <td align="right">2×10<sup>−4</sup> – 6.32×10<sup>−4</sup> Pa</td> <td align="right">20 – 30 dB </td></tr> <tr> <td>Light leaf rustling, calm breathing</td> <td align="right">6.32×10<sup>−5</sup> Pa</td> <td align="right">10 dB </td></tr> <tr> <td><a href="/w/index.php?title=Auditory_threshold&action=edit&redlink=1" class="new" title="Auditory threshold（页面不存在）">Auditory threshold</a> at 1 kHz</td> <td align="right">2×10<sup>−5</sup> Pa</td> <td align="right">0 dB<sup id="cite_ref-Hamby_3-1" class="reference"><a href="#cite_note-Hamby-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td></tr></tbody></table> <figure typeof="mw:File/Thumb"><a href="/wiki/File:Sound_pressure_diagram.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/7a/Sound_pressure_diagram.svg/250px-Sound_pressure_diagram.svg.png" decoding="async" width="250" height="126" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/7a/Sound_pressure_diagram.svg/375px-Sound_pressure_diagram.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/7a/Sound_pressure_diagram.svg/500px-Sound_pressure_diagram.svg.png 2x" data-file-width="861" data-file-height="433" /></a><figcaption>声压示意图: 1.无声 2.可闻音 3.大气压 4.瞬时声压</figcaption></figure> <div class="mw-heading mw-heading2"><h2 id="参考资料"><span id=".E5.8F.82.E8.80.83.E8.B5.84.E6.96.99"></span>参考资料</h2></div> <div class="reflist" style="list-style-type: decimal;"> <ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text">Hatazawa, M., Sugita, H., Ogawa, T. & Seo, Y. (Jan. 2004), ‘Performance of a thermoacoustic sound wave generator driven with waste heat of automobile gasoline engine,’ <i>Transactions of the Japan Society of Mechanical Engineers (Part B)</i> Vol. 16, No. 1, 292–299. <a rel="nofollow" class="external autonumber" href="http://md1.csa.com/partners/viewrecord.php?requester=gs&collection=TRD&recid=200407211336MT&q=Performance+of+a+thermoacoustic+sound+wave+generator+driven+with+waste+heat+of+automobile+gasoline+engine&uid=790404233&setcookie=yes">[1]</a></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><cite class="citation journal">Swanepoel, De Wet; Hall III, James W; Koekemoer, Dirk. <a rel="nofollow" class="external text" href="http://www.scielo.org.za/pdf/samj/v100n2/v100n2a15.pdf">Vuvuzela – good for your team, bad for your ears</a> <span style="font-size:85%;">(PDF)</span>. South African Medical Journal. 2010, <b>100</b> (4): 99–100. <a rel="nofollow" class="external text" href="//www.ncbi.nlm.nih.gov/pubmed/20459912"><span title="公共医学识别码">PMID 20459912</span></a>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fzh.wikipedia.org%3A%E5%A3%B0%E5%8E%8B&rft.atitle=Vuvuzela+%E2%80%93+good+for+your+team%2C+bad+for+your+ears&rft.au=Hall+III%2C+James+W&rft.au=Koekemoer%2C+Dirk&rft.aufirst=De+Wet&rft.aulast=Swanepoel&rft.date=2010&rft.genre=article&rft.issue=4&rft.jtitle=South+African+Medical+Journal&rft.pages=99-100&rft.volume=100&rft_id=http%3A%2F%2Fwww.scielo.org.za%2Fpdf%2Fsamj%2Fv100n2%2Fv100n2a15.pdf&rft_id=info%3Apmid%2F20459912&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal" class="Z3988"><span style="display:none;"> </span></span> <span style="font-size:100%" class="error citation-comment">已忽略未知参数<code style="color:inherit; border:inherit; padding:inherit;">|month=</code>（建议使用<code style="color:inherit; border:inherit; padding:inherit;">|date=</code>） (<a href="/wiki/Help:%E5%BC%95%E6%96%87%E6%A0%BC%E5%BC%8F1%E9%94%99%E8%AF%AF#parameter_ignored_suggest" title="Help:引文格式1错误">帮助</a>)</span></span> </li> <li id="cite_note-Hamby-3"><span class="mw-cite-backlink">^ <a href="#cite_ref-Hamby_3-0"><sup><b>3.0</b></sup></a> <a href="#cite_ref-Hamby_3-1"><sup><b>3.1</b></sup></a></span> <span class="reference-text"><cite class="citation web">William Hamby. <a rel="nofollow" class="external text" href="http://www.webcitation.org/5rXlLRYsP">Ultimate Sound Pressure Level Decibel Table</a>. （<a rel="nofollow" class="external text" href="http://www.makeitlouder.com/Decibel%20Level%20Chart.txt">原始内容</a>存档于2010-07-27）.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fzh.wikipedia.org%3A%E5%A3%B0%E5%8E%8B&rft.au=William+Hamby&rft.btitle=Ultimate+Sound+Pressure+Level+Decibel+Table&rft.genre=unknown&rft_id=http%3A%2F%2Fwww.makeitlouder.com%2FDecibel%2520Level%2520Chart.txt&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><cite id="CITEREF1974" class="citation"><a rel="nofollow" class="external text" href="http://www.epa.gov/aboutepa/history/topics/noise/01.html">EPA Identifies Noise Levels Affecting Health and Welfare</a>, 1974-04-02 <span class="reference-accessdate"> [<span class="nowrap">2010-11-01</span>]</span></cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fzh.wikipedia.org%3A%E5%A3%B0%E5%8E%8B&rft.btitle=EPA+Identifies+Noise+Levels+Affecting+Health+and+Welfare&rft.date=1974-04-02&rft.genre=book&rft_id=http%3A%2F%2Fwww.epa.gov%2Faboutepa%2Fhistory%2Ftopics%2Fnoise%2F01.html&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> </ol></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">检索自“<a dir="ltr" href="https://zh.wikipedia.org/w/index.php?title=声压&oldid=21375021">https://zh.wikipedia.org/w/index.php?title=声压&oldid=21375021</a>”</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Special:%E9%A1%B5%E9%9D%A2%E5%88%86%E7%B1%BB" 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