{"id":8850,"date":"2026-06-11T09:22:05","date_gmt":"2026-06-11T07:22:05","guid":{"rendered":"https:\/\/www.tonmeister.ca\/wordpress\/?p=8850"},"modified":"2026-06-15T12:48:56","modified_gmt":"2026-06-15T10:48:56","slug":"bo-tech-video-human-hearing","status":"publish","type":"post","link":"https:\/\/www.tonmeister.ca\/wordpress\/2026\/06\/11\/bo-tech-video-human-hearing\/","title":{"rendered":"B&amp;O Tech: Human Hearing"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>#100 in&nbsp;<a href=\"https:\/\/www.tonmeister.ca\/wordpress\/category\/bang-olufsen\/\">a series of articles<\/a>&nbsp;about the technology behind&nbsp;<a href=\"http:\/\/www.bang-olufsen.com\/\">Bang &amp; Olufsen<\/a>&nbsp;loudspeakers<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">I\u2019ve started working with a number of my colleagues on a series of videos for internal training at Bang &amp; Olufsen. They were kind enough to make some of these videos publicly available.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This one explains some basic concepts of human hearing in the frequency domain, including how our hearing changes with level, the reason we use &#8220;loudness&#8221; processing in loudspeakers, and psychoacoustic masking.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-vimeo wp-block-embed-vimeo\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"03. Basics of Acoustics: Human hearing\" src=\"https:\/\/player.vimeo.com\/video\/1200049468?dnt=1&amp;app_id=122963\" width=\"750\" height=\"422\" frameborder=\"0\" allow=\"autoplay; fullscreen; picture-in-picture; clipboard-write; encrypted-media; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\"><\/iframe>\n<\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">In case you&#8217;re interested in looking into this a little further, the curves I show there are from the Robinson-Dadson experiments, not the Fletcher-Munson version. An interesting place to start learning about the history of this is the March, 1962 issue of Wireless World magazine, which includes this plot comparing the two.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"767\" height=\"1024\" src=\"https:\/\/www.tonmeister.ca\/wordpress\/wp-content\/uploads\/equal_loudness-767x1024.png\" alt=\"\" class=\"wp-image-8894\" style=\"width:452px;height:auto\" srcset=\"https:\/\/www.tonmeister.ca\/wordpress\/wp-content\/uploads\/equal_loudness-767x1024.png 767w, https:\/\/www.tonmeister.ca\/wordpress\/wp-content\/uploads\/equal_loudness-225x300.png 225w, https:\/\/www.tonmeister.ca\/wordpress\/wp-content\/uploads\/equal_loudness-768x1025.png 768w, https:\/\/www.tonmeister.ca\/wordpress\/wp-content\/uploads\/equal_loudness.png 1096w\" sizes=\"auto, (max-width: 767px) 100vw, 767px\" \/><\/figure>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>#100 in&nbsp;a series of articles&nbsp;about the technology behind&nbsp;Bang &amp; Olufsen&nbsp;loudspeakers I\u2019ve started working with a number of my colleagues on a series of videos for internal training at Bang &amp; Olufsen. They were kind enough to make some of these videos publicly available. This one explains some basic concepts of human hearing in the frequency [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[33,4,32,57,56,5,54],"tags":[],"class_list":["post-8850","post","type-post","status-publish","format-standard","hentry","category-acoustics","category-audio","category-bang-olufsen","category-headphones","category-hearing","category-loudspeakers","category-perception-audio"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p48hIM-2iK","_links":{"self":[{"href":"https:\/\/www.tonmeister.ca\/wordpress\/wp-json\/wp\/v2\/posts\/8850","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.tonmeister.ca\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tonmeister.ca\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tonmeister.ca\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tonmeister.ca\/wordpress\/wp-json\/wp\/v2\/comments?post=8850"}],"version-history":[{"count":5,"href":"https:\/\/www.tonmeister.ca\/wordpress\/wp-json\/wp\/v2\/posts\/8850\/revisions"}],"predecessor-version":[{"id":8895,"href":"https:\/\/www.tonmeister.ca\/wordpress\/wp-json\/wp\/v2\/posts\/8850\/revisions\/8895"}],"wp:attachment":[{"href":"https:\/\/www.tonmeister.ca\/wordpress\/wp-json\/wp\/v2\/media?parent=8850"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tonmeister.ca\/wordpress\/wp-json\/wp\/v2\/categories?post=8850"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tonmeister.ca\/wordpress\/wp-json\/wp\/v2\/tags?post=8850"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}