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Publications associées (32)

Real-Time Optimization via Directional Modifier Adaptation, with Application to Kite Control

The steady advance of computational methods makes model-based optimization an increasingly attractive method for process improvement. Unfortunately, the available models are often inaccurate. The traditional remedy is to update the model parameters, but th ...

EPFL2015

Implementation of a binaural localization algorithm in hearing aids: Specifications and achievable solutions

Hervé Lissek, Patrick Marmaroli, Gilles André Courtois

This article introduces the constraints and issues related to the implementation of a binaural localization algorithm on a pair of hearing aids. The algorithm should improve the rendering of the spatial information available in the audio signals, which are ...

2014

Passive phase noise cancellation element

Luis Guillermo Villanueva Torrijo

A passive electro-mechanical device that reduces phase noise in oscillators, thereby improving their frequency precision. The noise reduction device can consist of a pair of coupled nonlinear resonators that are driven parametrically-by modulating their na ...

2014

A compact and low loss Y-junction for submicron silicon waveguide

Yi Zhang, Christophe Marcel Georges Galland

We designed a compact, low-loss and wavelength insensitive Y-junction for submicron silicon waveguide using finite difference time-domain (FDTD) simulation and particle swarm optimization (PSO), and fabricated the device in a 248 nm complementary metal-oxi ...

Optical Society of America2013

A High-Efficiency Nonuniform Grating Coupler Realized With 248-nm Optical Lithography

Christophe Marcel Georges Galland, Yang Liu

We describe a high-efficiency grating coupler (GC) fabricated on a silicon-on-insulator wafer with 220 nm top silicon layer. One single 60 nm shallow etch is required to define the diffractive gratings with a minimum lithographic feature size of 180 nm, wh ...

Institute of Electrical and Electronics Engineers2013

Perceptual Coding of High-Quality Digital Audio

Christof Faller, Karlheinz Brandenburg

This paper introduces high-quality audio coding using psychoacoustic models. This technology is now abundant, with gadgets named after a standard (mp3 players) and the ability to play high-quality audio from literally billions of devices. The usual paradig ...

Ieee-Inst Electrical Electronics Engineers Inc2013

Analysis of human brain exposure to low-frequency magnetic fields: A numerical assessment of spatially averaged electric fields and exposure limits

Juan Ramon Mosig, Valerio De Santis, Nicolas Chavannes

Compliance with the established exposure limits for the electric field (E-field) induced in the human brain due to low-frequency magnetic field (B-field) induction is demonstrated by numerical dosimetry. The objective of this study is to investigate the de ...

Wiley-Blackwell2013

Performance Improvement of TDOA-Based Speaker Localization in Joint Noisy and Reverberant Conditions

TDOA- (time difference of arrival-) based algorithms are common methods for speech source localization. The generalized cross correlation (GCC) method is the most important approach for estimating TDOA between microphone pairs. The performance of this meth ...

2011

Nanoparticle conjugation and pulmonary delivery enhance the protective efficacy of Ag85B and CpG against tuberculosis

John McKinney, Neeraj Dhar, Eleonora Simeoni, Jeffrey Alan Hubbell, Melody Swartz, Alexandre de Titta, Marie Ballester, Miriella Carmela Pasquier, Cyntia De Piano

Vaccines that drive robust T-cell immunity against Mycobacterium tuberculosis (Mtb) are needed both for prophylactic and therapeutic purposes. We have recently developed a synthetic vaccine delivery platform with Pluronic-stabilized polypropylene sulfide n ...

2011

Speech Enhancement using Beta-order MMSE Spectral Amplitude Estimator with Laplacian Prior

Hervé Bourlard

This report addresses the problem of speech enhancement employing the Minimum Mean-Square Error (MMSE) of β-order Short Time Spectral Amplitude (STSA). We present an analytical solution for β-order MMSE estimator where Discrete Fourier Transform (DFT) coef ...

Idiap2011

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