Library

RESEARCH SYMPOSIUM

Location

Salford

Conference Series

Institute of Acoustics Proceedings

Volume

23

Part

5

Year

2003

Papers

A NEW ENGINEERING MODEL FOR THE ACOUSTIC PROPERTIES OF UNCONSOLIDATED GRANULAR MIXES

VV VORONINA , KV HOROSHENKOV , DC HUGHES

QUANTIZED PYRAMIDAL BEAM TRACING OR A SOUND-PARTICLE-RADIOSITY-ALGORITHM

MODELLING ROUGH SURFACES WITH EDGE DIFFRACTION

UP SVENSSON AND RR TORRES , RR TORRES

THE PERFORMANCE OF SCHROEDER DIFFUSERS A WIDE BAND BEM INVESTIGATION

TJ COX , JAS ANGUS, P DANTONIO

COLUMN TYPE DIFFUSER FOR SUPPLYING REFLECTIONS FROM BEHIND WITHOUT THE USE OF BACK WALL EFFECTS IN A CONCERT HALL

T HANYU , K SEKIGUCHI, K HOSHI

A GTD-BASED BOUNDARY ELEMENT METHOD FOR A SURFACE SCATTERING PROBLEM

S LANGDON , SN CHANDLER-WILDE

ABSORPTION AND DIFFUSION RESEARCH INTO PRACTICE - YORK UNIVERSITY MUSIC RESEARCH CENTRE

S COLAM , R ORLOWSKI , J HARGREAVES

RAPID COMPUTATION OF BISTATIC SURFACE SCATTERING FROM ROUGH ELASTIC MEDIA

RF GRAGG , RJ SOUKUP, RC GAUSS , D WURMSER

USE OF ACOUSTIC SHOCK WAVES FROM FOCUSED LASER BEAMS FOR STUDIES OF SURFACE ACOUSTICS

Q QIN , K ATTENBOROUGH

NONLINEAR EFFECTS IN RIGID POROUS LAYERS MEASUREMENT AND MODELLING

O UMNOVA, K ATTENBOROUGH , E STANDLEY , A CUMMINGS

A NEW APPARATUS FOR MEASURING THE ABSORPTION COEFFICIENT FOR NORMAL INCIDENCE

N PRODI , F POMPOLI , P BONFIGLIO

A SCALE MODEL INVESTIGATION OF THE ROLE OF DIFFUSE REFLECTIONS IN URBAN NOISE PROPAGATION

MR ISMAIL , DJ OLDHAM

THE TAMURA METHOD A FREE FIELD TECHNIQUE FOR SCANNING SURFACES

L BOECX , G JANSENS , W LAURIKS , G VERMEIR

CALCULATION OF THE SCATTERING COEFFICIENT OF A SINE-SHAPED SURFACE BY USING THE 3D BEM METHOD

L DE GEETERE , JJ EMBRECHTS , G VERMEIR

INFLUENCE OF THE MATERIAL PARAMETERS OF THE JOHNSON-ALLARD-CHAMPOUX MODEL ON MODELLING AN OUTDOOR SURFACE WAVE

L BOECKX , G JANSENS , W LAURIKS , G VERMEIR

EFFECTS OF SURFACE CHARACTERISTICS ON THE ACOUSTIC ENVIRONMENT OF ANCIENT OUTDOOR PERFORMANCE SPACES

K CHOURMOUZIADOU, J KANG

ACOUSTICAL EFFECTS OF SURFACE ROUGHNESS

K ATTENBOROUGH , P BOULANGER Q QIN, Q QIN

CALCULATION OF THE SCATTERING COEFFICIENT OF A SINE-SHAPED SURFACE BY SOLVING THE HELMHOLTZ INTEGRAL

JJ EMBRECHTS, L DE GEETERE , G VERMEIR

MODELLING GROUND ROUGHNESS EFFECTS IN A SUBSTITUTE SOURCES METHOD (SSM)

ACOUSTIC CHARACTERISTICS OF THERMO-BONDED FIBRES

J REDONDO , J RAMIS , J ALBA , J VENERO , V SANCHIS

EQUIVALENT ACOUSTIC ABSORPTION MODEL OF FLAT HETEROGENEOUS WALLS

J DUCOURNEAU , V PLANEAU

THE EFFECT OF SURFACE DIFFUSION ON THE PREFRRED ACOUSTIC PARAMETERS FOR A JAVANESE GAMELAN PERFORMANCE HALL

J SARWONO , YW LAM

SOUND DIFFUSERS USING ACTIVE IMPEDANCE GRATINGS

JAS ANGUS , TJ COX , MR AVIS , L XAIO

MEASUREMENTS OF SURFACE PROPERTIES IN A RECORDING STUDIO

ATTENUATION OF STONELEY WAVE IN FLUID-FILLED BOREHOLE DUE TO ITS SCATTERING ON A TWO DIMENSIONAL STATISTICALLY ROUGH WELL SURFACE

GA MAXIMOV , EV PODIATCHEV , E ORTEGA

EMPLOYMENT OF SPHERICAL WAVE REFLECTION COEFFICIENT IN ROOM ACOUSTICS

G ROMANENKO , M VORLANDER

MEASURING THE DYNAMIC SHEAR MODULUS OF POROELASTIC FOAMS IN THE AUDIBLE FREQUENCY RANGE

G JANSENS , L BOECKX , G VERMEIR , W LAURIKS , JF ALLARD

FREE FIELD TECHNIQUE FOR IMPEDANCE EVALUATION FROM PRESSURE MEASUREMENT NEAR GRAZING INCIDENCE FOR NON-LOCALLY REACTING POROUS LAYERS

G JANSENS , L BOECKX , W LAURIKS , JF ALLARD

APPLICATIONS OF IN-SITU MEASUREMENT TECHNIQUES OF ABSORPTION

C NOCKE , V MELLERT

MESOSTRUCTURAL APPROACH FOR CHARACTERISING MACROSCOPIC PARAMETERS OF OPEN CELL FOAMS

C PERROT , R PANNETON , X OLNY , R BOUCHARD

PROPERTIES AND APPLICATION OF MICROPERFORATED STRETCHED CEILINGS

C HILGE , C NOCKE

INVERSE SCATTERING AND FIELD EXTRAPOLATION FOR ROUGH SURFACE SCATTERING

C LINES , SN CHANDLER