Frequences from 110 to 190hz with 10hz pass

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Bass trap and other devices

Postby Sandy Fairservice » Sun Mar 06, 2011 10:16 pm

I built a bass trap for about $NZ80 from plans in Alton Everest's book on acoustics. Then I stuck it under the bed--there is a bed in my "studio". That fixed the bass because it resonates at 100 Hz. Everest also gives lots of tables for materials and sizes. You can build BBC mid-range panels too, just as simply. Using Audacity's tone generator I "squeaked" the room, but there was a nasty dip caused by the speaker's interaction with the wall. So I resorted to a good healthy handclap, which on Audacity let me see the shape of the decay and its causes. Better to fix the studio than tweak your equipment's frequency response.
Sandy Fairservice
 
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Postby Glenn » Sun Mar 06, 2011 11:56 pm

Thanks for the tip, Sandy. The book looks as though it would make a useful addition to my library.

I see a feisty NZ spirit brings a recovery well under way.

All the best,
Glenn
Black is beautiful!
Glenn
 
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Re: Bass trap and other devices

Postby Vest » Mon Oct 31, 2011 4:18 pm

Sandy Fairservice wrote:I built a bass trap for about $NZ80 from plans in Alton Everest's book on acoustics. Then I stuck it under the bed--there is a bed in my "studio". That fixed the bass because it resonates at 100 Hz. Everest also gives lots of tables for materials and sizes. You can build BBC mid-range panels too, just as simply. Using Audacity's tone generator I "squeaked" the room, but there was a nasty dip caused by the speaker's interaction with the wall. So I resorted to a good healthy handclap, which on Audacity let me see the shape of the decay and its causes. Better to fix the studio than tweak your equipment's frequency response.


I agree it is better to fix the studio. If you take a look at www.deamp.com you will see how you easily can get assistance to fix your studio - og homecinema :D
Vest
 
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