Roch Lefebvre

41 papers A 5B 1C 1Misc 8Journal 7Unranked 19
YearRankTypeTitle / Venue / Authors
2024 — conf
Zero-Bit Transmission of Adaptive Pre- and De-Emphasis Filters for Speech and Audio Coding.
TSP
Niloofar Omidi Piralideh, Philippe Gournay, Roch Lefebvre
2018 A conf
A canadian french emotional speech dataset.
MMSys
Philippe Gournay, Olivier Lahaie, Roch Lefebvre
2017 — conf
Influence of audio bandwidth on speech emotion recognition by human subjects.
GlobalSIP
Olivier Lahaie, Roch Lefebvre, Philippe Gournay
2017 Misc conf
Pre-echo noise reduction in frequency-domain audio codecs.
ICASSP
Jimmy Lapierre, Roch Lefebvre
2016 C conf
A study of the perceptual relevance of the burst phase of stop consonants with implications in speech coding.
MMSP
Vincent Santini, Philippe Gournay, Roch Lefebvre
2016 — conf
A subjective evaluation of the effects of speech coding on the perception of emotions.
ISPACS
Felix Labelle, Roch Lefebvre, Philippe Gournay
2016 J jnl
Bandwidth Extension of Narrowband Speech for Low Bit-Rate Wideband Coding.
CoRR
Jean-Marc Valin, Roch Lefebvre
2016 Misc conf
On the influence of quantization on the identifiability of emotions from voice coding parameters.
ICASSP
Patrick Robitaille, Samuel Trempe, Philippe Gournay, Roch Lefebvre
2012 J jnl
Context-Based Adaptive Arithmetic Encoding of EAVQ Indices.
IEEE Trans. Speech Audio Process.
K. Lakhdhar, Roch Lefebvre
2010 A conf
A blind signal-to-noise ratio estimator for high noise speech recordings.
INTERSPEECH
Charles Mercier, Roch Lefebvre
2009 Misc conf
Inter-tone noise reduction in a low bit rate CELP decoder.
ICASSP
Tommy Vaillancourt, Milan Jelinek, Redwan Salami, Vladimir Malenovsky, Roch Lefebvre
2009 Misc conf
Unified speech and audio coding scheme for high quality at low bitrates.
ICASSP
Max Neuendorf, Philippe Gournay, Markus Multrus, Jérémie Lecomte, Bruno Bessette, Ralf Geiger, Stefan Bayer, Guillaume Fuchs, Johannes Hilpert, Nikolaus Rettelbach, Redwan Salami, Gerald Schuller, Roch Lefebvre, Bernhard Grill
2008 — conf
G.711.1: A wideband extension to ITU-T G.711.
EUSIPCO
Yusuke Hiwasaki, Shigeaki Sasaki, Hitoshi Ohmuro, Takeshi Mori, Jongmo Seong, Mi Suk Lee, Balázs Kövesi, Stéphane Ragot, Jean-Luc Garcia, Claude Marro, Lei Miao, Jianfeng Xu, Vladimir Malenovsky, Jimmy Lapierre, Roch Lefebvre
2008 Misc conf
New approach to voiced onset detection in speech signal and its application for frame error concealment.
ICASSP
Catherine Lemyre, Milan Jelinek, Roch Lefebvre
2008 — conf
Noise shaping in an ITU-T G.711-interoperable embedded codec.
EUSIPCO
Jimmy Lapierre, Roch Lefebvre, Bruno Bessette, Vladimir Malenovsky, Redwan Salami
2007 — conf
Efficient Frame Erasure Concealment in Predictive Speech Codecs using Glottal Pulse Resynchronisation.
ICASSP (4)
Tommy Vaillancourt, Milan Jelinek, Redwan Salami, Roch Lefebvre
2007 J jnl
Fast Recovery for a CELP-Like Speech Codec After a Frame Erasure.
IEEE Trans. Speech Audio Process.
Mohamed Chibani, Roch Lefebvre, Philippe Gournay
2006 — conf
A New Post-Filtering for Artificially Replicated High-Band in Speech Coders.
ICASSP (1)
Guillaume Fuchs, Roch Lefebvre
2006 — conf
A Two-Stage MLP+NLMS Lossless Coder for Stereo Audio.
ICASSP (5)
Emmanuel Ravelli, Philippe Gournay, Roch Lefebvre
2006 J jnl
Extended AMR-WB for high-quality audio on mobile devices.
IEEE Commun. Mag.
Redwan Salami, Roch Lefebvre, Ari Lakaniemi, Kalervo Kontola, Stefan Bruhn, Anisse Taleb
2006 B conf
Multiple Description and Multi-Path Routing for Robust Voice Transmission over Ad Hoc Networks.
WiMob
Mylène D. Kwong, Soumaya Cherkaoui, Roch Lefebvre
2006 — conf
Resynchronization of the Adaptive Codebook in a Constrained celp Codec After a Frame Erasure.
ICASSP (1)
Mohamed Chibani, Roch Lefebvre, Philippe Gournay
2006 — conf
Wavelet Based Independent Component Analysis for Multi-Channel Source Separation.
ICASSP (5)
Rachid Moussaoui, Jean Rouat, Roch Lefebvre
2005 — conf
A speech coder post-processor controlled by side-information.
ICASSP (4)
Guillaume Fuchs, Roch Lefebvre
2005 — conf
Increasing the Robustness of CELP-Based Coders By Constrained Optimization.
ICASSP (1)
Mohamed Chibani, Philippe Gournay, Roch Lefebvre
2005 — conf
Universal speech/audio coding using hybrid ACELP/TCX techniques.
ICASSP (3)
Bruno Bessette, Roch Lefebvre, Redwan Salami
2004 — conf
A study of design compromises for speech coders in packet networks.
ICASSP (1)
Roch Lefebvre, Philippe Gournay, Redwan Salami
2004 — conf
Companded lattice VQ for efficient parametric LPC quantization.
EUSIPCO
Marie Oger, Stéphane Ragot, Roch Lefebvre
2004 — conf
Low-complexity multi-rate lattice vector quantization with application to wideband TCX speech coding at 32 kbit/s.
ICASSP (1)
Stéphane Ragot, Bruno Bessette, Roch Lefebvre
2003 — conf
Improved packet loss recovery using late frames for prediction-based speech coders.
ICASSP (1)
Philippe Gournay, François Rousseau, Roch Lefebvre
2003 J jnl
Near-ellipsoidal Voronoi coding.
IEEE Trans. Inf. Theory
Stéphane Ragot, Minjie Xie, Roch Lefebvre
2002 J jnl
The adaptive multirate wideband speech codec (AMR-WB).
IEEE Trans. Speech Audio Process.
Bruno Bessette, Redwan Salami, Roch Lefebvre, Milan Jelinek, J. Rotola-Pukkila, Janne Vainio, Hannu Mikkola, Kari Järvinen
2001 A conf
AMR wideband codec - leap in mobile communication voice quality.
INTERSPEECH
J. Rotola-Pukkila, Janne Vainio, Hannu Mikkola, Kari Järvinen, Bruno Bessette, Roch Lefebvre, Redwan Salami, Milan Jelinek
2001 J jnl
Hexacode-based quantization of the Gaussian source at 1/2 bit per sample.
IEEE Trans. Commun.
Stéphane Ragot, Jean-Pierre Adoul, Roch Lefebvre
2001 A conf
Techniques for high-quality ACELP coding of wideband speech.
INTERSPEECH
Bruno Bessette, Roch Lefebvre, Redwan Salami, Milan Jelinek, Janne Vainio, J. Rotola-Pukkila, Hannu Mikkola, Kari Järvinen
2001 A conf
Wideband LSF quantization by generalized voronoi codes.
INTERSPEECH
Stéphane Ragot, Hassan Lahdili, Roch Lefebvre
2000 Misc conf
Stochastic-algebraic wideband LSF quantization.
ICASSP
Stéphane Ragot, Roch Lefebvre, Redwan Salami, Jean-Pierre Adoul
1997 Misc conf
Spectral amplitude warping (SAW) for noise spectrum shaping in audio coding.
ICASSP
Roch Lefebvre, Claude Laflamme
1995 Misc conf
Comparison of the wavelet decomposition and the Fourier transform in TCX encoding of wideband speech and audio.
ICASSP
Jean-Michel LeRoux, Roch Lefebvre, Jean-Pierre Adoul
1994 — conf
High quality coding of wideband audio signals using transform coded excitation (TCX).
ICASSP (1)
Roch Lefebvre, Redwan Salami, Claude Laflamme, Jean-Pierre Adoul
1993 — conf
8 kbit/s coding of speech with 6 ms frame-length.
ICASSP (2)
Roch Lefebvre, Redwan Salami, Claude Laflamme, Jean-Pierre Adoul