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Terrible boost at 150Hz
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September 15, 2018
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September 15, 2018 - 1:52 am
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Hi everyone,

I am fairly new to acoustics. I understand how sound propagates but I don’t quite get how I should treat my room issue.

I get an ugly boost at around 150Hz, which kills any song including a heavy D3 note. I have started to put on bass traps on the back of my sound system, but the problem remains.

The room size is 260cm * 350cm, ceiling height 230cm. I should mention the ceiling is not totally flat. It’s curved on the left about 30% of the ceiling surface. Also, the ceiling surface is wood.

I have a sliding door on my left that is covered by curtains. A window on my back also covered by curtains. And sliding panels (my room is japanese tatami style room) on my right that are not covered.

I am not sure what to do next. Keep covering corners with bass traps? Or is this 150hz boost potentially caused by anything else? I read on another thread ceiling height could be the problem.

Thanks for all the advises left on this forum anyway!

Paul

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Chief Acoustics Engineer
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September 15, 2018 - 8:49 am
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P, A 150 boost comes from a 37 Hz. issue with your room. Fill out the data in this link so we can take a look at your entire room. The corners of your room are not your problem. Your issue is one of the dimensions and unwanted pressure. https://www.acousticfields.com…..-analysis/

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September 18, 2018 - 7:19 am
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Thanks for your quick reply Dennis.

I did fill this form before I posted here. I will wait for your reply then.

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