NURWS Waveguide

N.U.R.W.S. (Non Uniform Rational Wavefront Shaping)

FINAL MOULD DESIGN

FLANGE DIMENSION

NURWS Pressure progression

Pressure @ 19kHz

NURWS Polar Pattern

Horizontal

Vertical

NURWS Directivity Plots

Simulations Measurement

Horizontal

Vertical

Sound pressure phase on NURWS mouth

Virtual Prototype N.24

Final Virtual Prototype (N. 37)

Phase detected along the red line

Application example

In this simple application (demonstrative system for compact line array module and central or surround monitor in

cinema application) red curve is MLS, 1/3 oct, ambient measurement of NURWS unfiltered, grey curve is the total

response with DSP.

Array in mirror alternating configuration

Front view Rear view

Top view

261.5 mm

125 mm

Suggested acoustic adaptor for

Straight Array

useful for barycentric equilibrium and maximum angle in curved array

Straight Array

Curved Array

20° Max

Array in free end configuration

D. Cinanni, Sept. 2014

261

.5 m

m

Free end

Woofer position

useful for side column solutions and beam steering array