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Vectorize is now an option and works well :)
This causes several issues below that I do not understand :(#L.pvec ΣL.p 1010 #L.pvec dB / 10 /^vectorize sum 10 log * dB * :

dB Pressure will convert to power
reference to 20 micro-Pa L.P 10 p p.ref / (2^10 log * ≡

Fix #1: variable in lieu of function within a function #ΣL.p #dist.ref L.W #ΣL.p dB / 20 #dist.ref m / 10 log * + (dB * :

Fix #1: variable in lieu of function within a function
Sound Power does not change wrt distance. We then use it to back calculate the sound pressures wrt distance from source(s).
Sound Pressure Function re: 20 mPa #dist #b #L.W L.p #L.W dB / 10 #b 4 π * #dist (2^* / 10 log * vectorize + (dB * :

Function to add value at end of vector #last #vector Vector.add2end n #vector rows 1 + : #vector n 1 el #last : #vector 31 line :

Given

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Sound pressure level as measured by vendor
Note input is a vector for mult equip.
See Assumptions L.pvend 757721 mat dB * :

Distance as measured by vendor
Use meters! dist.vend 1.5 m * :

Project Specified dB dB.final 55 dB * :

Assumptions

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The sound given by the vendor is assumed to be in dB(A) This needs to be confirmed by the engineer as the values are not transferable

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Assumed Geometry directivity factor b.vend 2 :

Range to do the analysis.
This is in meters! x 1100 range m * :

Set values

L.W 85.1306 dB * :

L.W dB / 85.1306

x 0.0001 501 range :

b 24831 mat :

The equation x b f L.W dB / 10 b count el 4 π * x m / (2^* / log10 * + :

Sound is "cleaner" to calculate in metric (no coefficient for unit conversions, etc.) To adjust for distance in the function, change the denominator "unit" to distance required ... ft, km, miles, m, etc.

f.conv m UoM ft / :

x b f count 1 b rows range : B count el b count el 14 π * x 2^* / vectorize * : 12 mat C count el 85.1306 10 B mat2sys log10 vectorize * (count el sys2mat + : L count el x f.conv * C count el augment : L mat2sys.1 41 line :

# # <

P count 1 b rows range : L.p count el x b count el 85.131 dB * L.p dB / dB.final dB / ≡ x 1100 solve f.conv * : L.p b rows 1 matrix dB.final dB / + augment 31 line :

# # <

P 42.0189 55 59.4238 55 84.0379 5532 mat

x b f P 2 1 sys