{"id":9570,"date":"2015-12-15T14:29:33","date_gmt":"2015-12-15T13:29:33","guid":{"rendered":"http:\/\/www.mixedbymarcmozart.com\/?p=9570"},"modified":"2019-08-30T22:41:44","modified_gmt":"2019-08-30T20:41:44","slug":"advanced-bass-trapping","status":"publish","type":"post","link":"https:\/\/mixedbymarcmozart.com\/fr\/2015\/12\/15\/advanced-bass-trapping\/","title":{"rendered":"Bass Trapping – Advanced Level"},"content":{"rendered":"

[vc_row][vc_column][vc_column_text]About two years ago, I’ve posted an article entitled \u00ab\u00a0Room Acoustics – Ghetto Style\u00a0\u00bb<\/a>. It later became part of my bestselling mixing book YOUR MIX SUCKS<\/a>, and has since been receiving very good feedback from many people who finally wanted to make their first step in treating their room.<\/strong><\/p>\n

The \u201cGhetto Style\u201d-Treatment is simple, effective and doesn\u2019t cost much, and while – in the context of mixing advice – we could leave it at that, I don\u2019t want to hold back on a slightly more complex construction for those that are prepared to put a little more effort in.<\/p>\n

The following construction is a whole level up from just stacking Rockwool, and is – depending on the space you have available – very close to perfection when it comes to bass trapping.<\/p>\n

Anything below 200 Hz is very difficult to control. These frequencies have a lot of energy and most of this low-end energy ends up in the corners of your room.<\/p>\n

[\/vc_column_text][\/vc_column][\/vc_row][vc_row margin_top=\u00a0\u00bb0″ margin_bottom=\u00a0\u00bb0″ css=\u00a0\u00bb.vc_custom_1469547035655{margin-bottom: 10px !important;}\u00a0\u00bb][vc_column][vc_column_text]<\/p>\n

STEP 1 – BREAKING THE WAVES!<\/strong><\/h3>\n

 <\/p>\n

[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]Installing the so-called \u201cWaveguides\u201d.<\/p>\n

[\/vc_column_text][\/vc_column][\/vc_row][vc_row margin_top=\u00a0\u00bb20″ margin_bottom=\u00a0\u00bb20″][vc_column][vc_single_image image=\u00a0\u00bb9571″ img_size=\u00a0\u00bbfull\u00a0\u00bb][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]The low frequencies – let\u2019s call them \u201cbass-waves\u201d here for convenience – will be forced to reflect between these massive (12 – 18mm thick) MDF-panels, which literally \u201ctraps\u201d them in the corner by losing their energy through the many reflections they’re forced into by the \u201cwaveguides\u201d.<\/p>\n

The MDF-panels need to reach from floor to ceiling, but they don\u2019t necessarily have to touch the floor\/ceiling – a small gap due to mounting brackets etc. is totally fine. The longer the MDF-panels reach into the room (measured from the corner), the better.
\nLeave a small gap (10 – 20 cm) in the corner, so the \u201cbass-waves\u201d can reflect back and loose even more energy.<\/p>\n

As a first step, we are marking the positions of the MDF-panels:
\n\u2022 the panel in the middle points to the speaker
\n\u2022 the other panels fan out 12 degrees from the middle one<\/p>\n

[\/vc_column_text][\/vc_column][\/vc_row][vc_row margin_top=\u00a0\u00bb20″ margin_bottom=\u00a0\u00bb20″][vc_column][vc_single_image image=\u00a0\u00bb9572″ img_size=\u00a0\u00bbfull\u00a0\u00bb][\/vc_column][\/vc_row][vc_row margin_top=\u00a0\u00bb0″ margin_bottom=\u00a0\u00bb0″ css=\u00a0\u00bb.vc_custom_1469547049026{margin-bottom: 10px !important;}\u00a0\u00bb][vc_column][vc_column_text]<\/p>\n

STEP 2 – SLOWING THE WAVES DOWN!<\/strong><\/h3>\n

 <\/p>\n

[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]After we finish the construction of the MDF-panels, we fill the gaps with glaswool. This will reduce the energy of the \u201cbass-waves\u201d further. The reason for using glas wool instead of rock wool is its lower density – rock wool is already too dense and would reflect some of the very low frequency. But what we really want is the \u201cbass-waves\u201d to pass through the entire trap – bounce back and forth between the MDF-panels while being slowed down using the glas wool.<\/p>\n

The density we seek in the glas wool is 15kg \/ m3. The following formula will help you to find the correct material in your DIY market\/warehouse. In Europe you\u2019ll definitely find it at OBI, Bauhaus, etc.<\/p>\n

[\/vc_column_text][\/vc_column][\/vc_row][vc_row margin_top=\u00a0\u00bb20″ margin_bottom=\u00a0\u00bb20″][vc_column][vc_single_image image=\u00a0\u00bb9573″ img_size=\u00a0\u00bbfull\u00a0\u00bb][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]In the picture below we were almost done filling the gaps between the wave guides with glas wool.
\nThe glas wool panels are quite solid and could easily be stacked on top of each other, vertically.<\/p>\n

[\/vc_column_text][\/vc_column][\/vc_row][vc_row margin_top=\u00a0\u00bb20″ margin_bottom=\u00a0\u00bb20″][vc_column][vc_single_image image=\u00a0\u00bb9575″ img_size=\u00a0\u00bbfull\u00a0\u00bb][\/vc_column][\/vc_row][vc_row margin_top=\u00a0\u00bb0″ margin_bottom=\u00a0\u00bb0″ css=\u00a0\u00bb.vc_custom_1469547063958{margin-bottom: 10px !important;}\u00a0\u00bb][vc_column][vc_column_text]<\/p>\n

STEP 3 – COSMETICS<\/strong><\/h3>\n

 <\/p>\n

[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]The final step is purely for cosmetics, using the same technique we’ve used for the ceiling cloud – we’re building a very simple timber frame covered with fireproof molton cloth.<\/p>\n

Please do NOT include a layer of rockwool behind the frame, that would reflect some of the low frequencies that can only be tamed using our bass trap construction.<\/p>\n

Here’s a picture made before fitting the frames – they are fairly light, but of course need to be properly secured!<\/p>\n

[\/vc_column_text][\/vc_column][\/vc_row][vc_row margin_top=\u00a0\u00bb20″ margin_bottom=\u00a0\u00bb20″][vc_column][vc_single_image image=\u00a0\u00bb9574″ img_size=\u00a0\u00bbfull\u00a0\u00bb][\/vc_column][\/vc_row][vc_row margin_top=\u00a0\u00bb20″ margin_bottom=\u00a0\u00bb20″][vc_column][vc_column_text]If you found this post helpful, check out my bestselling book which will guide you through the entire mix methodology from DAW preparation to mix delivery, the eBook YOUR MIX SUCKS<\/a>.[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

[vc_row][vc_column][vc_column_text]About two years ago, I’ve posted an article entitled \u00ab\u00a0Room Acoustics – Ghetto Style\u00a0\u00bb. It later became part of my bestselling mixing book YOUR MIX SUCKS, and has since been receiving very good feedback from many people who finally wanted to make their first step in treating their room. The \u201cGhetto Style\u201d-Treatment is simple, effective…<\/p>\n","protected":false},"author":1,"featured_media":9580,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-9570","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","category-1","description-off"],"yoast_head":"\nBass Trapping - Advanced Level - Mixed by Marc Mozart<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mixedbymarcmozart.com\/2015\/12\/15\/advanced-bass-trapping\/\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/mixedbymarcmozart.com\\\/2015\\\/12\\\/15\\\/advanced-bass-trapping\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/mixedbymarcmozart.com\\\/2015\\\/12\\\/15\\\/advanced-bass-trapping\\\/\"},\"author\":{\"name\":\"marcmozart\",\"@id\":\"https:\\\/\\\/mixedbymarcmozart.com\\\/#\\\/schema\\\/person\\\/3da9b6253db05a5664aeee78478e6343\"},\"headline\":\"Bass Trapping – Advanced Level\",\"datePublished\":\"2015-12-15T13:29:33+00:00\",\"dateModified\":\"2019-08-30T20:41:44+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/mixedbymarcmozart.com\\\/2015\\\/12\\\/15\\\/advanced-bass-trapping\\\/\"},\"wordCount\":870,\"image\":{\"@id\":\"https:\\\/\\\/mixedbymarcmozart.com\\\/2015\\\/12\\\/15\\\/advanced-bass-trapping\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/mixedbymarcmozart.cdnport.com\\\/2022\\\/04\\\/q7xCFei6-advanced_bass_trapping_featured_2_1_ratio.jpg\",\"articleSection\":[\"Uncategorized\"],\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/mixedbymarcmozart.com\\\/2015\\\/12\\\/15\\\/advanced-bass-trapping\\\/\",\"url\":\"https:\\\/\\\/mixedbymarcmozart.com\\\/2015\\\/12\\\/15\\\/advanced-bass-trapping\\\/\",\"name\":\"Bass Trapping - 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