Volume 4, Number 1, March, 1996 - Noise News International

international airport, Malaysia. Digital sound level meters ­a critical evaluation. Double hull tanker acoustic analysisusing solid geometry model and statistical energy analysis.Driving patterns in Japan and their relation to vehicle noisetesting methods. Dynamical analysis of vibro-acoustic data• Equalization concept and practical implementation issues.Evaluation of annoyance response to engine sound usingdifferent rating methods. Experiences with an SEA softwaretool for response and sensitivity calculation. Experimentalacoustic modal analysis - a review. Experimental determinationof acoustic source data for fans. Experimental statisticalenergy analysis: internal and coupling loss factor matrixvalidation • Experimental statistical energy modeling of ahigh speed train: measurement strategy, model derivation, andmodel application. Experimental validation and optimizationof parameters for an inverse method of identifying noisesources. Failure detection of roller bearings on freight trainwheel axles by noise and vibration signal. Failure detectionof roller bearings on freight train wheel axles by noise andvibration signal. Finite elements and statistical energy analysis:Redefining the ensemble. Frequency difference spectraand their use as a new kind of feature representation foracoustic classifiers/identifiers. Generic limitations of vibroacousticmodelling methods for prediction of product noise.Impedance determination by sound intensity measurement infree field. Implementation of real time octave filter analysisfunctions in a hand held type sound level meter- Improvementof Bangkok's highway noise forecasting model by modificationof traffic noise sources • Impulsive method for roadbarriers: a first schedule of ten years of practice • In situmeasurements of surface acoustical properties at oblique incidenceusing pseudo-random sequences and a single microphone• Intercomparison of computer programs for trafficnoise simulations • Interpolation model for long-range propagationof shooting noise over heterogeneous ground. Investigationof dual channel time delay estimates as an aid tosource location. Investigation of the long-range low-frequencynoise of a propfan aircraft test predicted by the integratednoise model • Investigations into the relationshipsbetween L eq and £go for urban railways • Least squarestechniques for the estimation of acoustic source strengthspectra. Let us use spheres in acoustic measurement instruments• Localization of correlated noise sources with selectivelinear arrays. Location of distant sources of infrasonicnoise • Long distance signal transmission procedure usingseismic sensors with AD converters. Low frequency hearingthreshold and equal loudness contours at 20, 40, 60, 80 and100 phon levels • Low power bimorph piezoceramictransducer for optical vibrating systems • Mapping of trucknoise using an incoherent aperture source model. Measurementof aircraft noise reduction in residences. Measurementof cylindrical configuration using sound phase delay. Measurementof flexural and longitudinal wave power flow inbeams with piezoelectric films • Measurement of the transmissionloss of simple and complex building cracks by meansof acoustic intensimetry • Measurement uncertainties in thedetermination of the sound power level of machines. Measuringthe relative strengths of a set of coherent sources •Microphones: theory and practice. Modeling and measurementof sound intensity of jet screech. Modelling and validationof a passenger car door transmission loss with SEA.Modelling of sound propagation in underground stations •Modelling of the acoustic protection given by a space launcherpayload fairing. Modelling structural-acoustic interaction inthe interior cavity of a passenger car • Modelling the propagationpathway of street traffic noise: practical comparison ofGerman guidelines and real-world measurements. Monitoringof tool condition using sound power measurement •Multichannel normalized x-block LMS algorithm for activenoise and vibration control. Never mind the level -listen tothe quality. Noise measurements in windy conditions. Noisesource identification based on measurements of cross-correlationfunctions.• Non-linear model of vibroacoustic signalapproach to the condition monitoring. Numerical simulationstudies of inverse methods for quantification of sound transmissionalong fluid-filled pipes • Objective evaluation ofsound quality based on a relative approach. Observations onthe systematic deviations between the results of the conventionalmethod and the intensity method of measuring transmissionloss • Passby measurements vs STSF passbysimulations • Pattern evaluation and periodic verification ofsound calibrators. Predicting frequency-varying fitting densityand absorption coefficient in industrial workrooms •Prediction of rain fall noise on double glass panes. Predictionof the occupational noise exposure level. Psychoacousticaldimensions of noise events in the laboratory and in the field• Quality of impulsive sounds • Recognition of acousticsignatures of aircraft noise events. Reduction of non-lineardistortion in condenser microphones by using negative loadcapacitance. Relation between measurement errors and predictionaccuracy in vibroacoustics • Remarks about the truevalue of the sound power level • Representativity of longrange sound level calculation. Reverberation-room methodfor sound power determination at low frequencies • Roadtraffic noise prediction taking account of transient vehiclerunning conditions. Robust active noise control of one-dimensionalexhaust duct using H~ control theory. Searchingand identification of noise sources using genetic algorithm •Simplified equivalent description of the complex subsystemsfor the numerical analyses of acoustic problems. Definitionof the subsystem parameters by measurements. Simulationof tram noise abatement procedures in the psychoacousticlaboratory: a pilot study. Solution of vibration contact problemsusing a fractal roughness characterization of the surface• Some prediction models for the calculation of traffic noisein the environment. Some applications of sound intensityin building acoustics. Sound absorption characteristics ofmaterials determined in regular shape room. Sound absorptioncoefficient measurements outdoors. Sound quality assessmentof a diesel engine due to structure modifications •Sound reduction index evaluation of double-wall panels forindustrial buildings using SEA. Sound source characteristicsanalysis of Shinkansen cars using x-shaped microphone array• Sound transmission through aircraft structures using statisticalenergy analysis • Sound transmission through lightweightdouble walls using statistical energy analysis. Soundtransmission through ship structures using statistical energyanalysis. Source signal manipulation for improved measurementsof multi-directional mechanical mobilities. Statisticalanalysis of 284 "Wuerzburger Hoerfield'' loudness scalingexperiments in normal hearing adults • Statistical energyanalysis (SEA) in the service of noise control • Structuralcoupling through the frame of a double wall. Super-compactmicrophone/receiver for noisy environments. Test codes formachines with variable repetition frequency. The concept ofquality in the context of product sound. The development ofa sound reproduction system to generate authentic vehicleinterior noise in a driving simulator. The Dose Badge -a newmeasuring concept • The identification of acoustic sourceswithin a circular duct using a model based approach • Thelimits of predictability due to uncertainty. The new laboratoryfacilities of the laboratory of building acoustics. The34NoiselNews International1996 March