The properties of five interpolating fast Fourier transform methods (IFFT) are studied with respect to their systematic errors and their noise sensitivity, for a monofrequency signal. It is shown… Expand

This paper gives a survey of frequency domain identification methods for rational transfer functions in the Laplace (s) or z-domain. The interrelations between the different approaches are… Expand

A bottom-up, activation-based paradigm for continuous speech recognition is described, using a vectorial representation of high but fixed dimension called “Histogram of Acoustic Co-occurrence” (HAC).Expand

A novel, exemplar-based method for audio event detection based on non-negative matrix factorisation, which model events as a linear combination of dictionary atoms, and mixtures as alinear combination of overlapping events.Expand

A new approach for age estimation from telephone speech patterns based on i-vectors, where each utterance is modeled by its corresponding ivector and Support Vector Regression is applied to estimate the age of speakers.Expand

Alternative to the cepstral representation that lead to more efficient MDT systems are studied, and the proposed solution, PROSPECT features (Projected Spectra), can be interpreted as a novel speech representation, or as an approximation of the inverse covariance matrix of the Gaussian distributions modeling the log-spectra.Expand

An extensive overview of the available estimators is presented, and a theoretical estimator is derived to experimentally assess an upper bound to the performance that can be achieved by any subspace-based method.Expand

In this method, each utterance is modeled by its corresponding i-vector, and a Within-Class Covariance Normalization technique is used for session variability compensation and a least squares support vector regression is applied to estimate the age of speakers.Expand

The overall learning framework, the user-centred design and evaluation aspects, database collection and approaches taken to combat problems such as noise and erroneous input are described.Expand

This paper illustrates that the Gaussian observation pdf can be replaced by a computationally more tractable discrete pdf, consisting of a weighted sum of delta functions, and shows how improved posterior state probabilities can be obtained by calculating their maximum likelihood estimates or using the pdf of clean speech conditioned on both the noisy speech and the backend Gaussian.Expand