32afd5d0-cc73-4ec9-a3eb-de5b6250e13c 34 4 5 decimal

&[DATE] &[TIME] - &[FILENAME]

Sound pressure level as measured by vendor
Note input in matrix for mult equip. L.pvend 75021 mat :

Distance as measured by vendor dist.vend 1.5 :

Assumed divectivity by vendor b.vend 2 :

Project Specified dB dB.final 55 :

Geometry directivity factor b 24831 mat :

This project is adapted from ... Elsid [Smath Collab] ...

Half sphere Quarter sphere Eighth sphere 31 sys

http://www.sengpielaudio.com/calculator-soundpower.htm

User L.total 1010 L.pvend 10 /^10 L.pvend 10 /^+ log10 vectorize * : 78.01 3.01 21 mat

Sound Power Function dist L.W L.total (1 el 10 b.vend 4 π * dist.vend (2^* / 10 log * abs vectorize + :

Sound pressures at different distances b x L.p dist L.W 10 b 4 π * x (2^* / 10 log * abs vectorize - :

Solve distance wrt sound dB final =>

dB.final 55 :

X 2 x L.p dB.final ≡ x 1100 solve 4 x L.p dB.final ≡ x 1100 solve 8 x L.p dB.final ≡ x 1100 solve 31 mat : 21.21 30 42.43 31 mat

Y 2 X 1 el L.p 4 X 2 el L.p 8 X 3 el L.p 31 mat : 55555531 mat

i 13 range U i el X i el Y i el augment : for

Selected 'X' j 2 :

U 21.2 5512 mat 305512 mat 42.4 5512 mat 31 mat

range the distance [m] x 1100 range :

m X j el 70 X j el 3522 mat :

x 2 x L.p vectorize augment x 4 x L.p vectorize augment x 8 x L.p vectorize augment U 1 el U 2 el U 3 el m 7 1 sys $x 2 x L.p vectorize augment x 4 x L.p vectorize augment x 8 x L.p vectorize augment U 1 el U 2 el U 3 el m 71 sys$ $Sound dB @ J location b X j el L.p 51.9897 55 58.0103 31 mat$