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Analysis and Synthesis of Speaker Age

Speaker age is an important speaker-specific quality, which was investigated in the two studies presented here. The first study automatically extracted 161 acoustic features from six words produced by 527 speakers, and used normalised mean values to compare the features. Segment duration and sound pressure level (SPL) range were identified as two important acoustic correlates of age. The second study

RiskUse - Guidelines, version 1.0

The purpose of the risk management process, RiskUse is to provide practitioners, mainly risk managers with a software risk management process that has a well-defined user perspective. The aim is to present a risk management process that allows the development organisation to perform adequate risk management activities that can ensure that the developed software is safe from a user perspective.

A virtual reality methodology for eliciting knowledge about public transport accessibility for people with acquired brain injury

Purpose. To evaluate a methodology based on virtual reality (VR) technology for eliciting knowledge about public transport accessibility for people with acquired brain injury (ABI). Method. Four subjects with ABI and four occupational therapists each made a complete bus trip in a virtual environment. Think-aloud protocols were used to elicit their knowledge about public transport accessibility is

Implementation and Application of a Semi-Empirical Tire-Model in Multi-Body Simulation of Vehicle Handling

This paper describes the implementation and application of a previously published semi-empirical tire-model in a multi-body modeling and simulation environment for vehicle dynamics analysis. The multi-body modeling environment is based on acausal equation descriptions expressed in the high-level language Modelica. This paradigm for modeling is particularly useful for the semi-empirical model. Exam

Stored energy and current optimization

Current optimization provides bounds on the antenna performance and suggestions for distributions of optimal antenna currents. Many current optimization problems can be formulated as convex optimization problems. The formulations as convex optimization problems are advantageous as there are efficient solvers with explicit posterior error bounds and the problems are easily generalized to specific a

Influence on the ear-to-ear link loss from heterogeneous head phantom variations

We have investigated the detuning of the antennas and the ear-to-ear link loss for the in-the-ear (ITE) binaural hearing aids considering the different heterogeneous human phantoms through FDTD simulations. It was found that the resonance frequency shifts differently for different phantoms and between the ears within the same phantom. The ear-to-ear link loss between the antennas for the homogeneo