1.0Sonarworks Bloghttps://www.sonarworks.com/blogKatrina Cabulehttps://www.sonarworks.com/blog/author/katrich600338<blockquote class="wp-embedded-content" data-secret="XdlLM6sDZM"><a href="https://www.sonarworks.com/blog/glossary/fletcher-munson-loudness-curve">Fletcher Munson Loudness Curve</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.sonarworks.com/blog/glossary/fletcher-munson-loudness-curve/embed#?secret=XdlLM6sDZM" width="600" height="338" title="“Fletcher Munson Loudness Curve” — Sonarworks Blog" data-secret="XdlLM6sDZM" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://www.sonarworks.com/blog/wp-includes/js/wp-embed.min.js </script> Human hearing is increasingly sensitive to both bass and treble frequencies as volume increases to about 85 dB SPL. At lower listening levels low and high frequencies seem to be lower in volume than midrange frequencies. Two scientists, Fletcher and Munson defined and graphed this phenomenon with the Fletcher-Munson Equal Loudness Curve. Mixing and mastering…https://blog-uploads.imgix.net/2024/04/Frame-3531.png?auto=compress%2Cformat19201080