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Old 06-03-2011, 07:58 AM   #503
Eomsy
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Join Date: Jun 2009
Location: Okolica Zagreba
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Default Re: DIY Vocal booth & Control room?!

Quote:
Originally Posted by NLP View Post
...Pa prvo izračunaš potreban volumen ...
Taj mi dio nije jasan kada prema formuli na http://www.audioholics.com/education...onant-absorber http://www.audioholics.com/education...onant-absorber...
Dobivam da je :
S=L*V*((f*pi)/0,5*c))2 ... 2 označava "na kvadrat"
...odnosno ...

V=(L*((f*pi)/0,5*c))2) / S

Where f is the resonant frequency (Hz), c is the speed of sound (1120ft/s), pi =3.14, S is the area of the port (ft 2 ), L is the length of the port (ft), and V is the cavity volume (ft 3 ).

Gdjer mi je i dalje S nepoznanica. Zar za S uzmem da mi je površina unutarnjeg ruba cijevi ??? To me muči ...

Quote:
Originally Posted by NLP View Post
Ah... to bi na kraju morao pasti barem nekakav ludi ala "Rumski piknik" od par dana...
Ma bit će roštiljade, kada bude sve gotovo i naravno da ste pozvani !!!
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Last edited by Eomsy; 06-03-2011 at 08:17 AM.
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