In this study, we propose a wavelet based speech data interpolation technique using the fractal characteristics of the speech. The aim of the method is to double the sampling rate, providing higher resolution while preserving the fractal characteristics of the speech signal. The method is applied to synthetic fractal signals and the results are compared with the linearly interpolated ones. Voic...

Abstract Background The study aims at evaluating the effect of wearing face masks on voice and intelligibility speech in Egyptian working individuals during COVID-19 pandemic to identify if there are any adverse effects environment. Materials methods A cross-section analytical was conducted 153 participants. Personal data about nature their workplaces were collected. evaluation included a subje...

The use of speech source localization (SSL) and its applications offer great possibilities for the design speaker local positioning systems with wireless acoustic sensor networks (WASNs). Recent works have shown that data-driven front-ends can outperform traditional algorithms SSL when trained to work in specific domains, depending on factors like reverberation noise levels. However, such model...

In this paper we would like to describe three student projects developed at the University of Applied Science at Hagenberg (Media Technology and Design) using ARToolKit. All projects were implemented by students during their semester projects or during their master thesis. MusicAR is the first application presented in this paper. It describes the master thesis of B. Hauser and shows a nice musi...

BACKGROUND Virtual humans have become part of our everyday life (movies, internet, and computer games). Even though they are becoming more and more realistic, their speech capabilities are, most of the time, limited and not coherent and/or not synchronous with the corresponding acoustic signal. METHODS We describe a method to convert a virtual human avatar (animated through key frames and int...

This study aims to systematically review original articles investigating the link between spectral acoustic measures in healthy talkers and perceived speech intelligibility, according PRISMA guidelines. Twenty-two studies were retained. Eighteen papers investigated vowel acoustics, one studied glides eight consonants, mostly sibilants. Various intelligibility estimates used. The following shown...