{"id":59684,"date":"2025-01-08T09:38:18","date_gmt":"2025-01-08T09:38:18","guid":{"rendered":"https:\/\/www.thepodcasthost.com\/?p=59684"},"modified":"2025-08-21T09:06:17","modified_gmt":"2025-08-21T08:06:17","slug":"facts-about-sound","status":"publish","type":"post","link":"https:\/\/www.thepodcasthost.com\/listening\/facts-about-sound\/","title":{"rendered":"26 Fascinating Facts About Sound: It&#8217;s Not Audio &#8220;Only&#8221;"},"content":{"rendered":"\n<p>Did you know that sound can make wine taste better and even levitate small objects? <\/p>\n\n\n\n<p>As podcasters, we know the power of sound better than most. But when you&rsquo;re speaking into the mic, do you ever stop to think about those invisible waves that are formulating your words?<\/p>\n\n\n\n<p>To celebrate our favourite medium, I&rsquo;ve pulled together some of the most mind-bending facts about sound that might change how you think about &ndash; or even approach &ndash; your next podcast recording.<\/p>\n\n\n    <style>\r\n        .wpj-jtoc.--jtoc-theme-basic-light.--jtoc-has-custom-styles {\r\n            --jtoc-numeration-suffix: \". \";\n--jtoc-numeration-color: #adadad;\n        }\r\n\r\n            <\/style>\r\n\r\n\r\n\r\n<div id=\"wpj-jtoc\" class=\"wpj-jtoc wpj-jtoc--main --jtoc-the-content --jtoc-theme-basic-light --jtoc-title-align-left --jtoc-toggle-icon --jtoc-toggle-position-right --jtoc-toggle-1 --jtoc-has-numeration --jtoc-has-custom-styles --jtoc-is-unfolded\" >\r\n\r\n    \r\n    <!-- TOC -->\r\n    <div class=\"wpj-jtoc--toc \">\r\n                                <div class=\"wpj-jtoc--header\">\r\n                <div class=\"wpj-jtoc--header-main\">\r\n                                        <div class=\"wpj-jtoc--title\">\r\n                        <span class=\"wpj-jtoc--title-label\">Table of contents<\/span>\r\n                    <\/div>\r\n                                                                <div class=\"wpj-jtoc--toggle-wrap\">\r\n                                                                                                                    <div class=\"wpj-jtoc--toggle-box\">\r\n                                    <div class=\"wpj-jtoc--toggle\"><\/div>\r\n                                <\/div>\r\n                                                    <\/div>\r\n                                    <\/div>\r\n            <\/div>\r\n                            <div class=\"wpj-jtoc--body\">\r\n                        <nav class=\"wpj-jtoc--nav\">\r\n                <ol class=\"wpj-jtoc--items\"><li class=\"wpj-jtoc--item --jtoc-h2\">\r\n        <div class=\"wpj-jtoc--item-content\" data-depth=\"2\">\r\n                <a href=\"#h-how-humans-listen\" title=\"How Humans Listen\" data-numeration=\"1\">How Humans Listen<\/a>\r\n                    <\/div> <\/li><li class=\"wpj-jtoc--item --jtoc-h2\">\r\n        <div class=\"wpj-jtoc--item-content\" data-depth=\"2\">\r\n                <a href=\"#h-how-animals-hear\" title=\"How Animals Hear\" data-numeration=\"2\">How Animals Hear<\/a>\r\n                    <\/div> <\/li><li class=\"wpj-jtoc--item --jtoc-h2\">\r\n        <div class=\"wpj-jtoc--item-content\" data-depth=\"2\">\r\n                <a href=\"#h-the-record-breakers-nbsp\" title=\"The Record Breakers\u00a0\" data-numeration=\"3\">The Record Breakers\u00a0<\/a>\r\n                    <\/div> <\/li><li class=\"wpj-jtoc--item --jtoc-h2\">\r\n        <div class=\"wpj-jtoc--item-content\" data-depth=\"2\">\r\n                <a href=\"#the-super-sciencey-stuff\" title=\"The Super Sciencey Stuff\u00a0\" data-numeration=\"4\">The Super Sciencey Stuff\u00a0<\/a>\r\n                    <\/div> <\/li><li class=\"wpj-jtoc--item --jtoc-h2\">\r\n        <div class=\"wpj-jtoc--item-content\" data-depth=\"2\">\r\n                <a href=\"#the-weird-and-wonderful\" title=\"The Weird and Wonderful\" data-numeration=\"5\">The Weird and Wonderful<\/a>\r\n                    <\/div> <\/li><li class=\"wpj-jtoc--item --jtoc-h2\">\r\n        <div class=\"wpj-jtoc--item-content\" data-depth=\"2\">\r\n                <a href=\"#h-it-isn-t-just-sound\" title=\"It Isn\u2019t \u201cJust\u201d Sound\" data-numeration=\"6\">It Isn\u2019t \u201cJust\u201d Sound<\/a>\r\n                    <\/div> <\/li><\/ol>            <\/nav>\r\n                    <\/div>\r\n    <\/div>\r\n<\/div>\r\n\n\n\n<h2 class=\"wp-block-heading \" id=\"h-how-humans-listen\">How Humans Listen<\/h2>\n\n\n\n<p><strong>Children can hear sounds that adults can&rsquo;t<\/strong>. Humans typically <a href=\"https:\/\/www.hiddenhearing.co.uk\/hearing-blog\/hearing-loss\/what-animals-have-better-hearing-than-humans\" target=\"_blank\" rel=\"noreferrer noopener\">hear between 20 Hz and 20,000 Hz<\/a>, but this range shrinks with age. Infants can actually hear frequencies slightly higher than 20 kHz, but lose some high-frequency sensitivity as they mature. High-frequency sounds (above 17 kHz) can only be heard by infants and younger people. This is why they&rsquo;re used in <a href=\"https:\/\/www.bbc.co.uk\/news\/10442500\" target=\"_blank\" rel=\"noreferrer noopener\">&ldquo;teen deterrent&rdquo; devices<\/a>.<\/p>\n\n\n\n<p><strong>You can hear without ears<\/strong>. You can &ldquo;hear&rdquo; sound through vibrations in your skull, which is how <a href=\"https:\/\/www.techradar.com\/news\/best-bone-conduction-headphones\" target=\"_blank\" rel=\"noreferrer noopener\">bone-conduction headphones work<\/a>.&nbsp;<\/p>\n\n\n\n<p><strong>There&rsquo;s science behind not liking your own voice recording<\/strong>.<strong> <\/strong>If, like most people, you <a href=\"https:\/\/www.thepodcasthost.com\/mindset\/i-hate-my-voice\/\" target=\"_blank\" rel=\"noreferrer noopener\">hate hearing the sound of your own voice during editing<\/a>, there&rsquo;s <a href=\"https:\/\/www.antarestech.com\/community\/why-does-my-voice-sound-different-on-a-recording\" target=\"_blank\" rel=\"noreferrer noopener\">science behind that<\/a>. You hear your voice differently because, normally, you hear it through both air conduction and bone conduction. Recordings, on the other hand, only capture air conduction.<\/p>\n\n\n\n<p><strong>Sound frequencies can stir emotions<\/strong>. <a href=\"https:\/\/www.hooksounds.com\/blog\/psychology-fear-horror-music\/\" target=\"_blank\" rel=\"noreferrer noopener\">Low-frequency sounds are used in horror<\/a> movies because they trigger primal fear responses in humans. These sounds cause fear and anxiety, even when we can&rsquo;t consciously hear them. Using <a href=\"https:\/\/www.thepodcasthost.com\/editing-production\/find-podcast-sound-effects\/\" target=\"_blank\" rel=\"noreferrer noopener\">low-frequency sound effects<\/a> in your horror podcast will create more impact.<\/p>\n\n\n\n<p><strong>Sound can make things taste better<\/strong>. Humans naturally want to match outside sensations to taste. In <a href=\"https:\/\/www.decanter.com\/learn\/the-power-of-music-how-brahms-might-make-your-wine-taste-better-473504\" target=\"_blank\" rel=\"noreferrer noopener\">one study<\/a>, participants found wine tasted better when matched with the right music.<\/p>\n\n\n\n<p><strong>Sound underwater warps human perception<\/strong>. Humans find it difficult to pinpoint the direction of where an underwater sound is coming from due to different acoustic properties. The cues we usually use to determine sound direction &ndash; interaural time and level differences &ndash; are different under water <a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0378595522000557#:~:text=For%20submerged%20humans%2C%20the%20usual,water%20and%20thereby%20longer%20wavelengths.\" target=\"_blank\" rel=\"noreferrer noopener\">due to high sound velocity of water and longer wavelengths.<\/a><\/p>\n\n\n\n<p><strong>Sound can be used as a weapon<\/strong>. During WWII, some nations experimented with using low-frequency sound waves as a potential weapon. This is <a href=\"https:\/\/hearinghealthmatters.org\/hearing-international\/2023\/sonic-warfare-noise-as-a-weapon\/\" target=\"_blank\" rel=\"noreferrer noopener\">called a sonic or &lsquo;acoustic attack<\/a>&lsquo;. Sonic weapons can be explicit, e.g. an extremely loud noise. Or, they can be covert, like infrasound that affects the human body without the targets noticing.<\/p>\n\n\n\n<p><strong>Acoustics in architecture<\/strong>. Ancient theatres like <a href=\"https:\/\/aefestival.gr\/venues\/ancient-theatre-of-epidaurus\/?lang=en\" target=\"_blank\" rel=\"noreferrer noopener\">Epidaurus<\/a> in Greece have nearly perfect acoustics. Their careful design means the audience can hear whispers from the stage even at the furthest distance.<\/p>\n\n\n    <div class=\"post-link-block\">\n        <div class=\"post-link-block__wrap\">\n            <div class=\"post-link-block__thumb-wrap\">\n                                <img decoding=\"async\" src=\"https:\/\/www.thepodcasthost.com\/wp-content\/uploads\/2025\/01\/Acoustics-in-Architecture-img-150x150.jpg\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.thepodcasthost.com\/wp-content\/uploads\/2025\/01\/Acoustics-in-Architecture-img-300x169.jpg 300w, https:\/\/www.thepodcasthost.com\/wp-content\/uploads\/2025\/01\/Acoustics-in-Architecture-img-1024x576.jpg 1024w, https:\/\/www.thepodcasthost.com\/wp-content\/uploads\/2025\/01\/Acoustics-in-Architecture-img-768x432.jpg 768w, https:\/\/www.thepodcasthost.com\/wp-content\/uploads\/2025\/01\/Acoustics-in-Architecture-img-350x197.jpg 350w, https:\/\/www.thepodcasthost.com\/wp-content\/uploads\/2025\/01\/Acoustics-in-Architecture-img-445x250.jpg 445w, https:\/\/www.thepodcasthost.com\/wp-content\/uploads\/2025\/01\/Acoustics-in-Architecture-img-580x326.jpg 580w, https:\/\/www.thepodcasthost.com\/wp-content\/uploads\/2025\/01\/Acoustics-in-Architecture-img-700x394.jpg 700w, https:\/\/www.thepodcasthost.com\/wp-content\/uploads\/2025\/01\/Acoustics-in-Architecture-img.jpg 1280w\" alt=\"acoustics in architecture\" sizes=\"(min-width: 768px) 120px, 70px\" class=\"post-link-block__thumbnail\">\n\t\t\t\t            <\/div>\n\n            <p class=\"post-link-block__headline\">Acoustics in Architecture: How Spaces Shape the Sounds We Hear<\/p>\n\n            <a href=\"https:\/\/www.thepodcasthost.com\/niche-case-study\/acoustics-in-architecture-how-spaces-shape-the-sounds-we-hear\/\" class=\"post-link-block__link\"><span class=\"screen-reader-text\">Read article called: Acoustics in Architecture: How Spaces Shape the Sounds We Hear<\/span><\/a>\n\n        <\/div>\n    <\/div>\n\n\t\n\n\n<p><strong>Sound can reduce anxiety and stress: <\/strong>The 528 hz frequency is a specific tone (roughly between a C and a C# note on the musical scale). In wellness circles, it&rsquo;s thought to have healing properties. In <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/30414050\/\">one scientific study<\/a>, when rats were exposed to the sound, it reduced anxiety and increase testosterone in the brain.<\/p>\n\n\n\n<h2 class=\"wp-block-heading \" id=\"h-how-animals-hear\">How Animals Hear<\/h2>\n\n\n\n<p><strong>Bats use ultrasound<\/strong> <strong>to navigate<\/strong>. Bats navigate and hunt in pitch dark using echolocation, emitting <a href=\"https:\/\/www.nps.gov\/subjects\/bats\/echolocation.htm\" target=\"_blank\" rel=\"noreferrer noopener\">sounds at frequencies above 20,000 Hz<\/a>, which is beyond human hearing.<\/p>\n\n\n\n<p><strong>Elephants use infrasound to communicate<\/strong>. Sounds below 20 Hz (infrasound) can be felt more than heard and are <a href=\"https:\/\/www.sciencedaily.com\/releases\/2012\/08\/120803103421.htm\" target=\"_blank\" rel=\"noreferrer noopener\">used by elephants<\/a> for long-distance communication. These sounds can be felt from several kilometres away.<\/p>\n\n\n\n<p><strong>Water temperature helps marine life talk to each other<\/strong>. In the ocean, the <a href=\"https:\/\/oceanservice.noaa.gov\/facts\/sofar.html\" target=\"_blank\" rel=\"noreferrer noopener\">SOFAR channel <\/a>(Sound fixing and ranging transmission) is a layer where sound travels best because it&rsquo;s the right temperature. The SOFRA channel helps marine sounds carry for thousands of miles.<\/p>\n\n\n\n<h2 class=\"wp-block-heading \" id=\"h-the-record-breakers-nbsp\">The Record Breakers&nbsp;<\/h2>\n\n\n\n<p><strong>The loudest sound on earth<\/strong>. The eruption of the Krakatoa volcano (Indonesia 1883) produced a sound heard 3,000 miles away. This makes the Krakatoa eruption <a href=\"https:\/\/www.audicus.com\/the-loudest-sound-ever-heard-or-not\/\" target=\"_blank\" rel=\"noreferrer noopener\">the loudest recorded sound in history.<\/a> But some poorly-mixed podcasts still come close with their intro music. <\/p>\n\n\n\n<p><strong>The fastest recorded human speech<\/strong>. On average, humans speak around 150 words per minute. The Guinness record for the <a href=\"https:\/\/www.guinnessworldrecords.com\/world-records\/358936-fastest-talker\" target=\"_blank\" rel=\"noreferrer noopener\">fastest talker in the English language is over 600 words\/minute.<\/a><\/p>\n\n\n\n<p><strong>The most intense sound ever made by nature<\/strong>. The tiny snapping shrimp (less than 10cm long) snaps its claws so fast to stun prey that it creates a sound <a href=\"https:\/\/www.science.org\/content\/article\/snapping-shrimp-close-their-claws-so-quickly-they-create-shock-waves-video-reveals-how\" target=\"_blank\" rel=\"noreferrer noopener\">louder than a gunshot<\/a> (up to 210 decibels).<\/p>\n\n\n\n<p><strong>The quietest place<\/strong>. The <a href=\"https:\/\/www.americanscientist.org\/article\/quietest-places-in-the-world#:~:text=According%20to%20the%20Guinness%20Book,noise%20reading%20of%20%E2%80%939.4%20decibels.\" target=\"_blank\" rel=\"noreferrer noopener\">Anechoic chambers at Microsoft&rsquo;s Washington headquarters<\/a> were built to absorb nearly all sound. This creates a silence so deep (-9.4 decibels) that people often can only hear their own heartbeat.<\/p>\n\n\n\n<p><strong>The lowest-sung vocal note<\/strong>. Tim Storms holds the Guinness Book of Records title for the <a href=\"https:\/\/www.classicfm.com\/artists\/tim-storms\/lowest-vocal-note-world-record\/\" target=\"_blank\" rel=\"noreferrer noopener\">lowest note produced by a human<\/a> at G -7 (0.189 Hz). This is 8 octaves lower than the lowest G note on the piano.<\/p>\n\n\n\n<h2 class=\"wp-block-heading \" id=\"the-super-sciencey-stuff\">The Super Sciencey Stuff&nbsp;<\/h2>\n\n\n\n<p><strong>The speed of sound varies<\/strong>. Sound travels fastest in solids, slower in liquids, and slowest in gases. It <a href=\"https:\/\/www.tutorchase.com\/notes\/cie-igcse\/physics\/3-4-4-speed-of-sound-in-different-mediums\" target=\"_blank\" rel=\"noreferrer noopener\">changes based on the medium<\/a> and its properties, such as air (343 m\/s), water (1,480 m\/s), and steel (~5,960 m\/s).<\/p>\n\n\n\n<p><strong>Sound can&rsquo;t exist in space<\/strong>. Sound needs a medium (air, water, or solid) to propagate. This means that <a href=\"https:\/\/theconversation.com\/why-isnt-there-any-sound-in-space-an-astronomer-explains-why-in-space-no-one-can-hear-you-scream-217885#:~:text=Space%20is%20a%20vacuum,to%20a%20lack%20of%20oxygen.\" target=\"_blank\" rel=\"noreferrer noopener\">sound can&rsquo;t exist in space<\/a>.<\/p>\n\n\n\n<p><strong>Sound changes depending on your distance from it<\/strong>. The change in sound frequency as an object moves closer to you is <a href=\"https:\/\/www.britannica.com\/science\/Doppler-effect\" target=\"_blank\" rel=\"noreferrer noopener\">called the doppler effect<\/a>. This explains why a siren&rsquo;s pitch changes as it passes.<\/p>\n\n\n\n<p><strong>Temperature<\/strong> <strong>impacts how sound travels<\/strong>.<strong> <\/strong>Sound travels faster in warm air than cold air because heat increases the energy of air molecules. However, sound travels further distances in cold air because sound waves bend away from warm air and back towards the ground.<\/p>\n\n\n\n<h2 class=\"wp-block-heading \" id=\"the-weird-and-wonderful\">The Weird and Wonderful<\/h2>\n\n\n\n<p><strong>Resonance and glass shattering<\/strong>. A singer can break a glass by matching its resonant frequency with their voice at a high volume. Don&rsquo;t believe it? <a href=\"https:\/\/www.youtube.com\/watch?v=Oc27GxSD_bI&amp;ab_channel=PhysicsGirl\" target=\"_blank\" rel=\"noreferrer noopener\">Watch this video<\/a> (skip to 6:30 if you&rsquo;re feeling impatient).<\/p>\n\n\n\n<p><strong>Sound waves have a shape<\/strong>. Sound waves appear as sine waves and can be visualized using devices like oscilloscopes. They can also create patterns in sand. Cymatics experiments show how sound frequencies produce intricate patterns in particles on a surface.<\/p>\n\n\n\n<p><strong>Sound can lift objects. <\/strong><a href=\"https:\/\/science.howstuffworks.com\/acoustic-levitation.htm\" target=\"_blank\" rel=\"noreferrer noopener\">Acoustic levitation<\/a> is when sound waves suspend small objects in midair by counteracting gravity.<\/p>\n\n\n\n<p><strong>You can create <\/strong><a href=\"https:\/\/www.bbc.co.uk\/programmes\/articles\/52JjKxXgs2nCk7jCc8YtbD9\/can-you-believe-your-ears\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>audio illusions<\/strong><\/a>. Like optical illusions, you can trick the human ear into hearing sounds differently from how they&rsquo;re being created. For example, Shepard tones create an auditory &ldquo;staircase&rdquo; effect of endlessly rising pitch when, in reality, it&rsquo;s just a single note.<\/p>\n\n\n\n<p><strong>You can put out fire with sound.<\/strong> With the right frequency, sound waves can seperate oxygen in fire from fuel, extinguishing a fire in seconds. Watch how these <a href=\"https:\/\/time.com\/3760361\/students-extinguish-fire-with-sound\/\">students from Virginia were able to extinguish fire using sound<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading \" id=\"h-it-isn-t-just-sound\">It Isn&rsquo;t &ldquo;Just&rdquo; Sound<\/h2>\n\n\n\n<p>Sound is a fascinating and limitless medium. In its simplest form, it is perfect for talking to your audience during their commutes, dog walks, or gym sessions. Some podcasters go beyond words, too, creating atmospheres and soundscapes using <a href=\"https:\/\/www.thepodcasthost.com\/listening\/what-is-asmr\/\">ASMR<\/a>, <a href=\"https:\/\/www.thepodcasthost.com\/listening\/what-are-binaural-beats\/\">Binaural Beats<\/a>, and <a href=\"https:\/\/www.thepodcasthost.com\/listening\/3d-audio-the-immersion-of-binaural-sound\/\">3D audio<\/a> techniques. As we&rsquo;ve learned today, too, there is just so much more to explore. <\/p>\n\n\n\n<p>So the next time you&rsquo;re behind the mic, remember this: Those invisible sound waves you&rsquo;re creating are part of the same phenomenon that helps bats navigate in pitch darkness, marine life survive, and makes humans feel all different kinds of sensations and emotions. There&rsquo;s something pretty incredible about that.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>These mind-bending facts about sound might change how you think about your next podcast recording. Sound is far from being &#8220;just&#8221; audio.<\/p>\n","protected":false},"author":67,"featured_media":59756,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"om_disable_all_campaigns":false,"inline_featured_image":false,"_uag_custom_page_level_css":"","footnotes":""},"categories":[129],"tags":[],"coauthors":[11638],"class_list":["post-59684","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-listening"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.0 (Yoast SEO v27.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>26 Fascinating Facts About Sound: It&#039;s Not Audio &quot;Only&quot;<\/title>\n<meta name=\"description\" content=\"These mind-bending facts about sound might change how you think about your next podcast recording. Sound is far from being &quot;just audio&quot;.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.thepodcasthost.com\/listening\/facts-about-sound\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"26 Fascinating Facts About Sound: It&#039;s Not Audio &quot;Only&quot;\" \/>\n<meta property=\"og:description\" content=\"These mind-bending facts about sound might change how you think about your next podcast recording. 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