This paper explores the effect of feedback presentation formats in mobile fitness apps. Drawing from computers are social actors (CASA) paradigm, cognitive load theory (CLT), and social presence literature in this study, we conceptualize that when a user is involved in different types of exercise (aerobic or anaerobic) the exposure to more humanized feedback can create differential influence in...

Computational Auditory Scene Analysis (CASA) aims to model our ability to structure our acoustical environment. In a CASA context, this paper deals with a method for time-frequency labeling based on harmonic properties. The method is based on a classical pitch extraction algorithm, termed the « zerocrossing method », which is known to be particularly sensitive to any kind of interference. This ...

The repeatability of the analysis of frozen thawed equine semen using a computer-assisted sperm analysis system is high. However, the settings used to analyze the semen samples influence the results to a large extent. Therefore, settings used in different studies should be described clearly, facilitating comparison of results. Authors’ address: Department of Reproduction, Obstetrics and Herd He...

The stock assessment model described here is based on Sullivan et al.’s (1990) CASA model. CASA is entirely length-based with population dynamic calculations in terms of the number of individuals in each length group during each year. Age is largely irrelevant in model calculations. Unlike many other length-based stock assessment approaches, CASA is a dynamic, non-equilibrium model based on a f...

Recent psychophysical studies suggest that human listeners do not segregate concurrent sounds by grouping frequency regions that have a common interaural time difference (ITD). However, such an approach is adopted by most computational auditory scene analysis (CASA) systems that use binaural cues. Here, we propose a CASA system that separates a target speech signal from a noise interferer, but ...

Heterogeneous network computing allows the development of a single complex application using a distributed network of machines; these machines may diier in terms of CPU and memory capacity and/or architecture and specialized functions. The design of eecient applications targeted to this class of systems is a complex task requiring the evaluation of diierent performance tradeoos. In this paper w...

We present a novel method for blind separation of instruments in polyphonic music based on a non-negative matrix factor 2-D deconvolution algorithm. Using a model which is convolutive in both time and frequency we factorize a spectrogram representation of music into components corresponding to individual instruments. Based on this factorization we separate the instruments using spectrogram mask...

Topics in speech and hearing are well-suited to demonstrations using media other than the printed word. Currently, educators rely largely on passive formats such as the CD collections for general auditory psychophysics [6], auditory scene analysis [2] and cochlear damage [10]. Progress in programming tools and cheap, multimedia hardware now presents the potential to go much further. The interac...

Computational auditory scene analysis – modeling the human ability to organize sound mixtures according to their sources – has experienced a rapid evolution as the simple principles suggested by psychological experiments have turned out to be less than the whole story. Phenomena such as the continuity illusion and phonemic restoration show that the brain is able to use a wide range of knowledge...

A public information system with an Embodied Conversational Agent is evaluated in a laboratory setting concerning Social Actorship, Social Acceptance, perceived Control, Pragmatic Quality and Hedonic Qualities. Results show a positive experience for Pragmatic Quality and Control, but negative ratings for Social Acceptance. Differentiating these various aspects of User Experience has proven to b...