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How to calculate bass trap density
Kuwait
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June 15, 2017 - 8:31 am

Hello Im currently treating my mates home av room. im looking to cover all 4 corners with bass traps.
Here at my hometown we can only get roxul rockwool. They come in many density such as 60,80 ,100 & 120 kg.
My question is,

1-what is the formula ?? and how to calculate how much density vs wavelength or room size my room length is 10 feet.
2- what is the thickness of the bass traps ?
3-what density should i use for my bass traps? im sure its 120kg? or should i double it ? use 2 of 120kg = 240kg Will this be able to absorb very low freq?

I cant get whole of owen’s 703 rigid fiberglass unfortunately ;-(

Also, for the first reflection.. what density should i use? 80kg one piece good enough?

Cheers

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June 15, 2017 - 3:55 pm

Hi A, What are the frequencies of issue? What is their amplitude or strength? Where are they located within the room? The corners of a room are usually not the area of highest pressure. Without data, you are just guessing and guessing is gambling.

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June 16, 2017 - 7:30 am

Dennis Foley said
Hi A, What are the frequencies of issue? What is their amplitude or strength? Where are they located within the room? The corners of a room are usually not the area of highest pressure. Without data, you are just guessing and guessing is gambling.

The frequency issue / 114 hz

The strength / +2 db

The location uper spot life and right corners

Thanks

Chief Acoustics Engineer
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June 16, 2017 - 8:12 am

Hi Ahmad, What are room dimensions?

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June 16, 2017 - 11:23 am

Dennis Foley said
Hi Ahmad, What are room dimensions?

Hi dennis

Length / 10 feet – 300 cm

Width / 9 feet – 275 cm

Hight / 8.5 feet – 245 cm

Best

Chief Acoustics Engineer
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June 16, 2017 - 11:36 am

Hi A, What is diameter and number of low frequency drivers? What is average listening pressure level ? My data base shows a Schroeder Frequency of 277 Hz. and a critical distance of 1.35′. I am also showing frequency spacial irregularities for this room size and volume from 43 – 331 Hz.

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June 17, 2017 - 7:50 pm

Dennis Foley said
Hi A, What is diameter and number of low frequency drivers? What is average listening pressure level ? My data base shows a Schroeder Frequency of 277 Hz. and a critical distance of 1.35′. I am also showing frequency spacial irregularities for this room size and volume from 43 – 331 Hz.

Hello dennis… The listening pleasure 90 db .. Im not sure about the low frequencies.. I think im a little bit short with acoustical knowledge .. am I able to get enough knowledge and information about how to measure a room and get the right numbers of frequencies and how to treat them and my room from you by buying ( All In One DIY Acoustic Treatment Build Plans Package) ?!

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June 18, 2017 - 8:18 am

Hi A, Before you go buying a treatment package, let first identify what to treat. You need to develop a sonic strategy and then apply treatment tactics to achieve the goal you are after. Lets start by taking a look at your room. Fill out the information in this link: https://acousticfields.com/fre…..m-analysis

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June 18, 2017 - 8:55 am

Dennis Foley said
Hi A, Before you go buying a treatment package, let first identify what to treat. You need to develop a sonic strategy and then apply treatment tactics to achieve the goal you are after. Lets start by taking a look at your room. Fill out the information in this link: https://acousticfields.com/fre…..alysis

Hi dennis
I filled out the information form. But I really would like to learn how to identify and analyze any other rooms in the future as I opened a small acoustic company and im willing to learn to do it correctly so do advice me to buy your packages will I learn from them and get the treatment tactics or do you have a course that can enroll in please advice me thanks

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June 18, 2017 - 9:07 am

Hi A, We have received numerous requests for such a course and training. I will give it consideration.

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