Roch Lefebvre

According to our database1, Roch Lefebvre authored at least 41 papers between 1993 and 2024.

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Bibliography

2024
Zero-Bit Transmission of Adaptive Pre- and De-Emphasis Filters for Speech and Audio Coding.
Proceedings of the 47th International Conference on Telecommunications and Signal Processing, 2024

2018
A canadian french emotional speech dataset.
Proceedings of the 9th ACM Multimedia Systems Conference, 2018

2017
Pre-echo noise reduction in frequency-domain audio codecs.
Proceedings of the 2017 IEEE International Conference on Acoustics, 2017

Influence of audio bandwidth on speech emotion recognition by human subjects.
Proceedings of the 2017 IEEE Global Conference on Signal and Information Processing, 2017

2016
Bandwidth Extension of Narrowband Speech for Low Bit-Rate Wideband Coding.
CoRR, 2016

A study of the perceptual relevance of the burst phase of stop consonants with implications in speech coding.
Proceedings of the 18th IEEE International Workshop on Multimedia Signal Processing, 2016

A subjective evaluation of the effects of speech coding on the perception of emotions.
Proceedings of the International Symposium on Intelligent Signal Processing and Communication Systems, 2016

On the influence of quantization on the identifiability of emotions from voice coding parameters.
Proceedings of the 2016 IEEE International Conference on Acoustics, 2016

2012
Context-Based Adaptive Arithmetic Encoding of EAVQ Indices.
IEEE Trans. Speech Audio Process., 2012

2010
A blind signal-to-noise ratio estimator for high noise speech recordings.
Proceedings of the 11th Annual Conference of the International Speech Communication Association, 2010

2009
Inter-tone noise reduction in a low bit rate CELP decoder.
Proceedings of the IEEE International Conference on Acoustics, 2009

Unified speech and audio coding scheme for high quality at low bitrates.
Proceedings of the IEEE International Conference on Acoustics, 2009

2008
New approach to voiced onset detection in speech signal and its application for frame error concealment.
Proceedings of the IEEE International Conference on Acoustics, 2008

Noise shaping in an ITU-T G.711-interoperable embedded codec.
Proceedings of the 2008 16th European Signal Processing Conference, 2008

G.711.1: A wideband extension to ITU-T G.711.
Proceedings of the 2008 16th European Signal Processing Conference, 2008

2007
Fast Recovery for a CELP-Like Speech Codec After a Frame Erasure.
IEEE Trans. Speech Audio Process., 2007

Efficient Frame Erasure Concealment in Predictive Speech Codecs using Glottal Pulse Resynchronisation.
Proceedings of the IEEE International Conference on Acoustics, 2007

2006
Extended AMR-WB for high-quality audio on mobile devices.
IEEE Commun. Mag., 2006

Multiple Description and Multi-Path Routing for Robust Voice Transmission over Ad Hoc Networks.
Proceedings of the 2006 IEEE International Conference on Wireless and Mobile Computing, 2006

A Two-Stage MLP+NLMS Lossless Coder for Stereo Audio.
Proceedings of the 2006 IEEE International Conference on Acoustics Speech and Signal Processing, 2006

Wavelet Based Independent Component Analysis for Multi-Channel Source Separation.
Proceedings of the 2006 IEEE International Conference on Acoustics Speech and Signal Processing, 2006

A New Post-Filtering for Artificially Replicated High-Band in Speech Coders.
Proceedings of the 2006 IEEE International Conference on Acoustics Speech and Signal Processing, 2006

Resynchronization of the Adaptive Codebook in a Constrained celp Codec After a Frame Erasure.
Proceedings of the 2006 IEEE International Conference on Acoustics Speech and Signal Processing, 2006

2005
A speech coder post-processor controlled by side-information.
Proceedings of the 2005 IEEE International Conference on Acoustics, 2005

Increasing the Robustness of CELP-Based Coders By Constrained Optimization.
Proceedings of the 2005 IEEE International Conference on Acoustics, 2005

Universal speech/audio coding using hybrid ACELP/TCX techniques.
Proceedings of the 2005 IEEE International Conference on Acoustics, 2005

2004
Low-complexity multi-rate lattice vector quantization with application to wideband TCX speech coding at 32 kbit/s.
Proceedings of the 2004 IEEE International Conference on Acoustics, 2004

A study of design compromises for speech coders in packet networks.
Proceedings of the 2004 IEEE International Conference on Acoustics, 2004

Companded lattice VQ for efficient parametric LPC quantization.
Proceedings of the 2004 12th European Signal Processing Conference, 2004

2003
Near-ellipsoidal Voronoi coding.
IEEE Trans. Inf. Theory, 2003

Improved packet loss recovery using late frames for prediction-based speech coders.
Proceedings of the 2003 IEEE International Conference on Acoustics, 2003

2002
The adaptive multirate wideband speech codec (AMR-WB).
IEEE Trans. Speech Audio Process., 2002

2001
Hexacode-based quantization of the Gaussian source at 1/2 bit per sample.
IEEE Trans. Commun., 2001

AMR wideband codec - leap in mobile communication voice quality.
Proceedings of the EUROSPEECH 2001 Scandinavia, 2001

Wideband LSF quantization by generalized voronoi codes.
Proceedings of the EUROSPEECH 2001 Scandinavia, 2001

Techniques for high-quality ACELP coding of wideband speech.
Proceedings of the EUROSPEECH 2001 Scandinavia, 2001

2000
Stochastic-algebraic wideband LSF quantization.
Proceedings of the IEEE International Conference on Acoustics, 2000

1997
Spectral amplitude warping (SAW) for noise spectrum shaping in audio coding.
Proceedings of the 1997 IEEE International Conference on Acoustics, 1997

1995
Comparison of the wavelet decomposition and the Fourier transform in TCX encoding of wideband speech and audio.
Proceedings of the 1995 International Conference on Acoustics, 1995

1994
High quality coding of wideband audio signals using transform coded excitation (TCX).
Proceedings of ICASSP '94: IEEE International Conference on Acoustics, 1994

1993
8 kbit/s coding of speech with 6 ms frame-length.
Proceedings of the IEEE International Conference on Acoustics, 1993


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