{"id":441,"date":"2024-10-02T11:52:00","date_gmt":"2024-10-02T15:52:00","guid":{"rendered":"https:\/\/guitar-faces.com\/blog\/?page_id=441"},"modified":"2024-10-03T20:41:59","modified_gmt":"2024-10-04T00:41:59","slug":"the-quest-for-acoustical-truth","status":"publish","type":"page","link":"https:\/\/guitar-faces.com\/blog\/mastering-services\/the-quest-for-acoustical-truth\/","title":{"rendered":"My Quest for Acoustical Truth"},"content":{"rendered":"\n<p>I built my own own panels and traps, and placed them where they do the job I needed done. I used tools like the Room EQ Wizard (REW), the AMROC calculator and the absorption calculators at AcousticModelling.com to find the best listening spot, I identified the problem frequencies in my room,  learned the right materials and amounts best suited to those frequencies. Then, with graphs, an app called Decibel X, and a tape measure, I located where to put it to address the unique characteristics of <em>my<\/em> room. I&#8217;ve worked on it two summers in a row. <\/p>\n\n\n\n<p>See those big dips on the left in my graphs? It&#8217;s close enough that SonarWorks software makes it flat. But the Quest For Acoustic Truth is an epic one. I must face those dips and tame them, to the very last one.<\/p>\n\n\n\n<p>Before I go further: let me acknowledge Mastering.com and <a href=\"https:\/\/courses.mastering.com\/programs\" data-type=\"link\" data-id=\"https:\/\/www.youtube.com\/playlist?list=PLEEVAiK8zmk_XP1kj4gTYEV1dyKg6EzjY\">The Reverse Engineer<\/a> as the source of this, and a great deal more of the information I pay forward here. It&#8217;s information you can trust.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1440\" height=\"1080\" data-id=\"451\" src=\"https:\/\/guitar-faces.com\/blog\/wp-content\/uploads\/room-before-1440x1080.jpg\" alt=\"My desk, showing speakers and Roland keyboard, centred against the bare wall.\" class=\"wp-image-451\" srcset=\"https:\/\/guitar-faces.com\/blog\/wp-content\/uploads\/room-before-1440x1080.jpg 1440w, https:\/\/guitar-faces.com\/blog\/wp-content\/uploads\/room-before-640x480.jpg 640w, https:\/\/guitar-faces.com\/blog\/wp-content\/uploads\/room-before-768x576.jpg 768w, https:\/\/guitar-faces.com\/blog\/wp-content\/uploads\/room-before-1536x1152.jpg 1536w, https:\/\/guitar-faces.com\/blog\/wp-content\/uploads\/room-before-2048x1536.jpg 2048w, https:\/\/guitar-faces.com\/blog\/wp-content\/uploads\/room-before-900x675.jpg 900w, https:\/\/guitar-faces.com\/blog\/wp-content\/uploads\/room-before-1280x960.jpg 1280w\" sizes=\"auto, (max-width: 1440px) 100vw, 1440px\" \/><figcaption class=\"wp-element-caption\">I moved to the end of a long basement, as centred as I can be. <\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"360\" height=\"480\" data-id=\"443\" src=\"https:\/\/guitar-faces.com\/blog\/wp-content\/uploads\/bass-trap-01.jpg\" alt=\"A wooden bass absorber under construction, partly filled with mineral wool. \" class=\"wp-image-443\"\/><figcaption class=\"wp-element-caption\">Almost a year later I learned fibreglass is better for controlling the bass frequencies, and PVC is easier to work with than knotty pine! <\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"960\" data-id=\"444\" src=\"https:\/\/guitar-faces.com\/blog\/wp-content\/uploads\/bass-trap-pvc-frame.jpg\" alt=\"A PVC frame on a box on my rear deck. \" class=\"wp-image-444\" srcset=\"https:\/\/guitar-faces.com\/blog\/wp-content\/uploads\/bass-trap-pvc-frame.jpg 720w, https:\/\/guitar-faces.com\/blog\/wp-content\/uploads\/bass-trap-pvc-frame-360x480.jpg 360w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">A PVC frame took only about an hour to build. <\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"854\" height=\"480\" data-id=\"438\" src=\"https:\/\/guitar-faces.com\/blog\/wp-content\/uploads\/guitar-faces-vignette_854x480.jpg\" alt=\"Me, smiling under my cloud at my DAW, bass absorbers in the background\" class=\"wp-image-438\" srcset=\"https:\/\/guitar-faces.com\/blog\/wp-content\/uploads\/guitar-faces-vignette_854x480.jpg 854w, https:\/\/guitar-faces.com\/blog\/wp-content\/uploads\/guitar-faces-vignette_854x480-768x432.jpg 768w\" sizes=\"auto, (max-width: 854px) 100vw, 854px\" \/><figcaption class=\"wp-element-caption\">Treated space! This room is within +\/- 3dB of flat above 400 Hz, +\/- 6dB at its worst (about 96 Hz\u2026 tbc)<\/figcaption><\/figure>\n<\/figure>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"510\" height=\"291\" data-id=\"447\" src=\"https:\/\/guitar-faces.com\/blog\/wp-content\/uploads\/rew-01.png\" alt=\"\" class=\"wp-image-447\"\/><figcaption class=\"wp-element-caption\">&#8220;Waterfall&#8221; displays room&#8217;s reflective qualities at each frequency<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"510\" height=\"291\" data-id=\"450\" src=\"https:\/\/guitar-faces.com\/blog\/wp-content\/uploads\/rew-04.png\" alt=\"Graph and settings, room eq wizard (REW). \" class=\"wp-image-450\"\/><figcaption class=\"wp-element-caption\">Predicting frequency response and modal distribution based on the room&#8217;s geometry. <\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"510\" height=\"291\" data-id=\"449\" src=\"https:\/\/guitar-faces.com\/blog\/wp-content\/uploads\/rew-03.png\" alt=\"\" class=\"wp-image-449\"\/><figcaption class=\"wp-element-caption\">Another view of frequency response<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"510\" height=\"291\" data-id=\"448\" src=\"https:\/\/guitar-faces.com\/blog\/wp-content\/uploads\/rew-02.png\" alt=\"\" class=\"wp-image-448\"\/><figcaption class=\"wp-element-caption\">Sound PRessure Level (SPL) and phase readings for each speaker help locate the most effective treatment points<\/figcaption><\/figure>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Are we there yet!!??<\/h2>\n\n\n\n<blockquote class=\"wp-block-quote is-style-plain has-small-font-size is-layout-flow wp-block-quote-is-layout-flow\">\n<p style=\"text-align:right;\"><span style=\"font-size:180%;\">Don\u2019t set your own room up without talking to me! <span style=\"display:inline-block;font-size:50%;text-align:right;\">\u2014 Me, to a friend, one time at BandCamp\u2026<\/span><\/span><\/p>\n<\/blockquote>\n\n\n\n<p>I didn&#8217;t stop there, oh no, I really dug in, using the REW and SonarWorks. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Find your listening spot! <\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">The Right Steps, in the Right Order<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Placing your desk<\/strong> defines your <strong><em>listening spot<\/em><\/strong>.  Ideally you can centre it on a short wall, and not right up against the wall. Not every room looks like a shoe box. Everything in and about your room influences what happens to sound waves between your speakers and your ears. Before you choose the headphone-only route\u2026<\/li>\n\n\n\n<li><strong>Your monitors or speakers<\/strong> should be the same distance from the wall. Don\u2019t put them on any part of your desk that\u2019s not specifically designed for speakers, and put Auralex or similar <a href=\"https:\/\/auralex.com\/shop\/iso-series\/studio-monitor-isolation\/\">studio monitor isolation<\/a> under them, regardless. Buy dedicated stands if the desk doesn\u2019t have something appropriate.    <\/li>\n\n\n\n<li><strong>Measure the distance<\/strong> between your speakers, <strong>make an equilateral triangle<\/strong>, and <em><strong>mark the spot!<\/strong><\/em> Masking tape works (before you throw a rug over it). From here on in, whether you sit or stand, you&#8217;ll spend most of your time with your head on the line that runs from that mark to the ceiling and perpendicular to the floor. <\/li>\n\n\n\n<li><strong><em>Now <\/em>you&#8217;re ready for some panels<\/strong>. It&#8217;s very near near 100% certain you need side panels and a ceiling cloud. You can <strong>use a mirror<\/strong> to find the best placement \u2014 it\u2019s where you can see your speakers in the mirror. You&#8217;ll probably put something on the walls behind the speakers. I needed to stuff my corners, including ceiling corners, for bass. How did I know that?  <\/li>\n\n\n\n<li><strong>The Room EQ Wizard<\/strong> (REW) tells you what problem frequencies remain at your listening position, and <em>how far away the source is<\/em>. <\/li>\n\n\n\n<li><strong>Get a tape measure<\/strong> and SPL (Sound Pressure Level) app for your phone, generate the frequency with REW, hunt it down and kill it. <a href=\"https:\/\/amcoustics.com\/tools\/amroc\">AMROC the Room Mode Calculator<\/a> can also give you an idea of where to look for and expect specific frequencies, especially if it&#8217;s a non-rectangular room. <br>\ud83d\udcaa\ud83c\udffc\ud83d\ude03<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"772\" height=\"960\" src=\"https:\/\/guitar-faces.com\/blog\/wp-content\/uploads\/listening-spot-2.png\" alt=\"\" class=\"wp-image-519\" srcset=\"https:\/\/guitar-faces.com\/blog\/wp-content\/uploads\/listening-spot-2.png 772w, https:\/\/guitar-faces.com\/blog\/wp-content\/uploads\/listening-spot-2-386x480.png 386w, https:\/\/guitar-faces.com\/blog\/wp-content\/uploads\/listening-spot-2-768x955.png 768w\" sizes=\"auto, (max-width: 772px) 100vw, 772px\" \/><figcaption class=\"wp-element-caption\"><strong>Likely locations for panels. <\/strong>(Not to scale. I&#8217;m ignoring the pesky things, like windows, closets and doors. ) The size, shape, and contents of the space behind you, height of ceiling, all makes a difference. <strong><em>Diffusors<\/em> <\/strong>are often better choices for rear walls, but corners are reliably build-up areas for low frequencies.<\/figcaption><\/figure>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>I built my own own panels and traps, and placed them where they do the job I needed done. I used tools like the Room EQ Wizard (REW), the AMROC calculator and the absorption calculators at AcousticModelling.com to find the best listening spot, I identified the problem frequencies in my room, learned the right materials [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":449,"parent":172,"menu_order":2,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-441","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/guitar-faces.com\/blog\/wp-json\/wp\/v2\/pages\/441","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/guitar-faces.com\/blog\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/guitar-faces.com\/blog\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/guitar-faces.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/guitar-faces.com\/blog\/wp-json\/wp\/v2\/comments?post=441"}],"version-history":[{"count":16,"href":"https:\/\/guitar-faces.com\/blog\/wp-json\/wp\/v2\/pages\/441\/revisions"}],"predecessor-version":[{"id":777,"href":"https:\/\/guitar-faces.com\/blog\/wp-json\/wp\/v2\/pages\/441\/revisions\/777"}],"up":[{"embeddable":true,"href":"https:\/\/guitar-faces.com\/blog\/wp-json\/wp\/v2\/pages\/172"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/guitar-faces.com\/blog\/wp-json\/wp\/v2\/media\/449"}],"wp:attachment":[{"href":"https:\/\/guitar-faces.com\/blog\/wp-json\/wp\/v2\/media?parent=441"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}