Speech de-noising algorithms often suffer from introduction of artifacts, either by removal of parts of the speech signal, or imperfect noise reduction causing the remaining noise to sound unnatural and disturbing. This contribution proposes to spatially distribute monaural noisy speech signals based on single-channel source separation, in order to improve the perceived speech quality. Stereo u...

The objective of this thesis was to develop a single channel noise reduction method, capable of handling the short delay constraints of a digital hearing aid. Two candidates were developed and evaluated, both based on a previously proposed long-delay algorithm called Perceptually Optimised Spectral Subtraction, or shortly, PSS. The first method, PSSLP (PSS with LowPass filtering of filter coeff...

Disturbing sounds are often referred to as noise, and if extreme enough in degree, intensity or frequency, it is referred to as noise pollution. Achievement refers to a change in study behavior in relation to their noise sensitivity and learning in the educational sense by achieving results in changed responses to certain types of stimuli like noise sensitivity.It is the more specialized skills...

An intermittent noise that occurs around 30 seconds after compressor start-up has been disturbing customers of many domestic refrigerator manufacturers over the past 10 years. This noise is very similar to that produced by popcorn popping, being referred to as popping noise. The most probable cause of this strange and unpleasant noise is thought to be CIS (Condensation Induced Shock). The aim o...

Railway transport is considered relatively environmentally friendly in terms of energy consumption and air pollution, but it unfriendly noise pollution. Noise vibrations propagating to railroad surrounding areas are disturbing populations. In order minimize this noise, legislation regulations such as TSI NOI have been adopted research generated by railway has carried out. Such out also our team...

I discuss the computational methods behind the formulation of some conjectures related to variants on Andrews’ q-Dyson conjecture.

The intermediate disturbance hypothesis (IDH) is a controversial explanation for the maintenance of tropical forest tree diversity, but empirical tests of it are rare. Two data-intensive evaluations have recently yielded contradictory outcomes: one for and one against the IDH. We propose that the explanation for these results lies in the subtleties of divergent interpretations and approaches, a...