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Bass trap and other devices

PostPosted: Sun Mar 06, 2011 10:16 pm
by Sandy Fairservice
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.

PostPosted: Sun Mar 06, 2011 11:56 pm
by Glenn
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

Re: Bass trap and other devices

PostPosted: Mon Oct 31, 2011 4:18 pm
by Vest
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