The aim of the study was to assess the effect of short-term perceptual training of music on some psycho-acoustical measures. The study was carried out in three phases. In first the phase pre-training evaluation was done which included raga identification and various psycho acoustical tests. Psycho-acoustical tests included measurement of differential limen of frequency and intensity, duration d...

Sound-field imaging, the visualization of spatial and temporal distribution of acoustical properties such as sound pressure, is useful for understanding acoustical phenomena. This study investigated the use of parallel phase-shifting interferometry (PPSI) with a high-speed polarization camera for imaging a sound field, particularly high-speed imaging of propagating sound waves. The experimental...

Children are considered at higher risk for harmful noise effects due to their sensitive development phase. Here, we investigated the of nocturnal aircraft exposure on short-term annoyance assessed in morning 51 primary school children (8–10 years) living surrounding community Cologne-Bonn Airport. Child-appropriate assessments and associated non-acoustical variables were surveyed. Nocturnal was...

In this work we present an accurate parameterization of the anti-neutrino flux produced by the isotopes 235U, 239Pu, and 241Pu in nuclear reactors. We determine the coefficients of this parameterization, as well as their covariance matrix, by performing a fit to spectra inferred from experimentally measured beta spectra. Subsequently we show that flux shape uncertainties play only a minor role ...

The development of advanced computers with special capabilities for vectorized or parallel calculations demands the development of new calculational methods. The very nature of the Monte Carlo process precludes direct conversion of old (scalar) codes to the new machines. Instead, major changes in global algorithms and careful selection of compatible physics treatments are required. Recent resul...

Noise annoyance is a feeling of displeasure or disturbance caused by noise. It is a sensitive indicator of adverse noise effects. Noise annoyance can only be partially explained by acoustical characteristics of noise – its level, frequency, duration, source etc. Non-acoustical factors, such as personal characterisitcs (age, gender, noise sensitivity), and social, residential or environmental fa...

Since the dimensions of many of the objects/surfaces encountered in our daily lives are within an order of magnitude of the wavelength of audible sounds, diffraction is an elementary means of sound propagation. Despite its importance in the real-world, diffraction effects are often overlooked by acoustical modeling methods leading to a degredation in immersion or presence. This paper describes ...

This paper describes a first step towards the automatic classification of prominence (as defined by naive listeners). As a result of a listening experiment each word in 500 sentences was marked with a rating scale between ‘0’ (non-prominent) and ‘10’ (very prominent). These prominence labels are compared with the following acoustical features: loudness of each vowel, and F0 range and duration o...

We are investigating acoustical analysis for dysarthric speech, which appears as a symptom of neurologic disease, in order to elucidate its physiological and acoustical mechanism, and to develop aids for diagnosis and training, etc. In this report, acoustical characteristics of various kinds of dysarthrias are measured. As a result, shrinking of the F0 range as well as vowel space are observed ...