Conférences
2012

AprilMPEG Unified Speech and Audio Coding-The ISO/MPEG Standard for High-Efficiency Audio Coding of All Content Types
M. Neuendorf, M. Multrus, N. Rettelbach, G. Fuchs, J. Robilliard, J. Lecomte, S. Wilde, S. Bayer, S. Disch, C. Helmric, R. Lefebvre, P. Gournay, B. Bessette, J. Lapierre & al.


2011

OctoberLow-Delay Audio Coding for High-Quality Communication
M. Lutzky, B. Grill, M. Jelinek & S. Spors

OctoberPerformance of MPEG Unified Speech and Audio Coding
S. Preihs, S. Quackenbush & R. Lefebvre

MayCoding of unquantized spectrum sub-bands in superwideband audio codecs
V. Eksler & M. Jelinek

MayG.711.1 Annex D and G.722 Annex B - New ITU-T superwideband codecs
L. Miao, Z. Liu, C. Hu, V. Eksler, S. Ragot, C. Lamblin, B. Kovesi, J. Sung, M. Fukui, S. Sasaki & Y. Hiwasaki


2010

SeptemberA blind signal-to-noise ratio estimator for high noise speech recordings
C. Mercier & R. Lefebvre

MayMPEG unified speech and audio coding
P. Gournay, M. Neuendorf & L. Villemoes


2009

MayA new bandwidth extension for audio signal without using side-information
K.L. Dinh, C.T.L. Dinh & R. Lefebvre

MayA novel scheme for low bit rate unified speech and audio coding - MPEG RM0
M. Neuendorf, P. Gournay, M. Multrus, J. Lecomte, B. Bessette, R. Geiger, S. Bayer, G. Fuchs, J. Hilpert, N. Rettelbach, F. Nagel, J. Robilliard, R. Salami, G. Schuller, R. Lefebvre & B. Grill

MayEfficient cross-fade windows for transitions between LPC-based and non-LPC based audio coding
J. Lecomte, P. Gournay, R. Geiger, B. Bessette & M. Neuendorf

AprilUnified speech and audio coding scheme for high quality at low bitrates
M. Neuendorf, P. Gournay, M. Multrus, J. Lecomte, B. Bessette, R. Geiger, S. Bayer, G. Fuchs, J. Hilpert, N. Rettelbach, R. Salami, G. Schuller, R. Lefebvre & B. Grill

ArpilInter-tone noise reduction in a low bit rate CELP decoder
T. Vaillancourt, M. Jelinek, R. Salami, V. Malenovsky & R. Lefebvre

FebruaryProfesseur virtuel de musique
B. Gagnon

FebruaryTest d'écoute subjectif intégrant des capteurs biométriques
M. Baudot


2008

SeptemberImproved frame loss recovery using closed-loop estimation of very low bit rate side information
P. Gournay

SeptemberA new fast algebraic fixed codebook search algorithm in CELP speech coding
V. Eksler, R. Salami & M. Jelinek

AugustITU-T EV-VBR: a robust 8-32 kbit/s scalable coder for error prone telecommunications channels
T. Vaillancourt, M. Jelinek, A.E. Ertan, J. Stachurski, A. Ramo, L. Laaksonen, J. Gibbs, U. Mittal, S. Bruhn, V. Grancharov, M. Oshikiri, H. Ehara, D. Zhang, F. Ma, D. Virette & S. Ragot

AugustImproving the detection efficiency of the VMR-WB VAD algorithm on music signals
V. Malenovsky & M. Jelinek

AugustNoise shaping in an ITU-T G.711-interoperable embedded codec
J. Lapierre, R. Lefebvre, B. Bessette, V. Malenovsky & R. Salami

AprilQuality evaluation of the G.EV-VBR speech codec
A. Ramo, H. Toukomaa, S.C. Greer, L. Laaksonen, J. Stachurski, A.E. Ertan, J. Svedberg, J. Gibbs & T. Vaillancourt

AprilNew approach to voiced onset detection in speech signal and its application for frame error concealment
C. Lemyre, M. Jelinek & R. Lefebvre

AprilITU-T G.EV-VBR baseline codec
M. Jelinek, T. Vaillancourt, A.E. Ertan, J. Stachurski, A. Ramo, L. Laaksonen, J. Gibbs & S. Bruhn

AprilTransition mode coding for source controlled CELP codecs
V. Eksler & M. Jelinek


2007

NovemberMulti-layer optimization for voice coding over Ad Hoc networks
M. Kwong, S. Cherkaoui & R. Lefebvre

November Classification-based techniques for improving the robustness of CELP coders
M. Jelinek, V. Eksler, C. Lemyre & R. Lefebvre

OctoberA high level musical score alignment technique based on fuzzy logic and DTW
B. Gagnon, R. Lefebvre & C-A. Brunet

October An improved low complexity AMR-WB+ encoder using neural networks for mode selection
J. Lecomte, R. Lefebvre & G. Richard

OctoberA very low bit-rate protection layer to increase the robustness of the AMR-WB+ codec against bit errors
P. Gournay

MayMultiple description coding for audio transmission using conjugate vector quantization
M. Kwong, R. Lefebvre & S. Cherkaoui

MayHybrid time-scale modification of audio
P-A. Savard, P. Gournay & R. Lefebvre

MaySource-controlled variable bit rate extension for the AMR-WB+ audio codec
A. Marty & R. Lefebvre

AprilITU-T G.729.1: an 8-32 Kbit/S scalable coder interoperable with G.729 for wideband telephony and voice over IP
S. Ragot, B. Kovesi, R. Trilling, D. Virette, N. Duc, D. Massaloux, S. Proust, B. Geiser, M. Gartner, S. Schandl, H. Taddei, Y. Gao, E. Shlomot, H. Ehara, K. Yoshida, T. Vaillancourt, R. Salami, L.M. Suk & K.D. Young

AprilEfficient frame erasure concealment in predictive speech codecs using glottal pulse resynchronisation
T. Vaillancourt, M. Jelinek, R. Salami & R. Lefebvre

AprilAn 8-12 Kbit/S embedded CELP coder interoperable with ITU-T G.729 CIDER: first stage of the new G.729.1 standard
D. Massaloux, R. Trilling, C. Lamblin, S. Ragot, H. Ehara, L. MI Suk, K.D. Young & B. Bessette


2006

SeptemberPitch resynchronization while recovering from a late frame in a predictive speech decoder
K.D. Anderson & P. Gournay

AugustVoice over packet networks: getting the most from your voice codec
P. Gournay

MayA scalable CELP/Transform coder for low bit rate speech and audio coding
G. Fuchs & R. Lefebvre

MayCoherence enhanced minimum statistics spectral subtraction in bi-microphone systems
J. Fillion-Denault & R. Lefebvre

MayOn improving parametric stereo audio coding
J. Lapierre & R. Lefebvre

MayA hybrid concealment algorithm for non-predictive wideband audio coders
V. Vilaysouk & R. Lefebvre

MayA two-stage MLP+NLMS lossless coder for stereo audio
E. Ravelli, P. Gournay & R. Lefebvre

MayResynchronization of the adaptive codebook in a constrained CELP codec after a frame erasure
M. Chibani, R. Lefebvre & P. Gournay

MayPerformance analysis of a decoder-based time scaling algorithm for variable Jitter buffering of speech over packet networks
P. Gournay & K.D. Anderson

MayWavelet based independent component analysis for multi-channel source separation
R. Moussaoui, J. Rouat & R. Lefebvre

AprilAMR-WB+: low bit rate audio coding for mobile multimedia
K. Kontola, J.M. Makinen, A. Taleb, S. Bruhn, B. Bessette & R. Salami


2005

October Next generation audio communications (AMR-WB+: A 3GPP standard for low-rate audio coding)
G. Schuller, B. Edler, R. Lefebvre, M. Lutzki, G. Pallone, L. Parra, S. Ramprashad, G. Shay & T. Sporer

AugustMultiple description and multi-path routing for robust voice transmission over Ad Hoc networks
M. Kwong, S. Cherkaoui & R. Lefebvre

JuneL'avenir de la téléphonie mobile : le point de vue des codecs audio
R. Lefebvre

MarchIncreasing the robustness of CELP-based coders by constrained optimization
M. Chibani, P. Gournay & R. Lefebvre

MarchUniversal speech/audio coding using hybrid ACELP/TCX techniques
B. Bessette, R. Lefebvre & R. Salami

MarchA speech coder post-processor controlled by side-information
G. Fuchs & R. Lefebvre

MarchAMR-WB+: A new audio coding standard for 3rd generation mobile audio services
J. Makinens, B. Bessette, S. Bruhn, P. Ojala, R. Salami & A. Taleb


2004

SeptemberVMR-WB-Operation of the 3GPP2 wideband speech coding standard
M. Jelinek, R. Salami & S. Ahmadi

SeptemberNoise reduction method for wideband speech coding
M. Jelinek & R. Salami

SeptemberCompanded lattice VQ for efficient parametric LPC quantization
M. Oger, S. Ragot & R. Lefebvre

JuneWideband LPC spectrum envelope coding based on gaussian mixture models and companded lattice VQ
M. Oger, S. Ragot & R. Lefebvre

MayBackward linear prediction for lossless coding of stereo audio
J-L. Garcia, P. Gournay & R. Lefebvre

MayOn the architecture of the CDMA2000® variable-rate multimode wideband (VMR-WB) speech coding standard
M. Jelinek, R. Salami, S. Ahmadi, B. Bessette, P. Gournay & C. Laflamme

MayLow-complexity multi-rate lattice vector quantization with application to wideband TCX speech coding at 32 kbit/s
S. Ragot, B. Bessette & R. Lefebvre

MayA study of design compromises for speech coders in packet networks
R. Lefebvre, P. Gournay & R. Salami

JanuaryAdvances in source-controlled variable bit rate wideband speech coding
M. Jelinek, R. Salami, S. Ahmadi, B. Bessette, P. Gournay, C. Laflamme & R. Lefebvre


2003

NovemberA neural-network approach for pre-classification in musical chords recognition
T. Gagnon, S. Larouche & R. Lefebvre

NovemberTransient detection of audio signals based on an adaptive comb filter in the frequency domain
M. Kwong & R. Lefebvre

NovemberWideband speech coding for CDMA2000® systems
S. Ahmadi, M. Jelinek, R. Salami & S.C. Greer

AprilImproving packet loss recovery using late frames for prediction-based speech coders
P. Gournay, F. Rousseau & R. Lefebvre

MarchHigh-resolution robust multipitch analysis of guitar chords
L. Bonnet & R. Lefebvre


2002

OctoberThe adaptive multi-rate wideband codec: history and performance
R. Salami, B. Bessette, R. Lefebvre & M. Jelinek

OctoberEfficient methods for high quality low bit rate wideband speech coding
B. Bessette, R. Salami, R. Lefebvre & M. Jelinek

OctoberSignal modification for voiced wideband speech coding and its application for IS-95
M. Tammi & M. Jelinek

SeptemberSignal modification for coding purely voiced sections in a wideband ACELP speech coder
M. Tammi & M. Jelinek


2001

SeptemberTechniques for high-quality ACELP coding of wideband and speech
B. Bessette, R. Lefebvre, R. Salami, M. Jelinek, J. Vainio, J. Rotola-Pukkila, H. Mikkola & K. Järvinen

SeptemberAMR wideband codec leap in mobile communication voice quality
J. Rotola-Pukkila, J. Vainio, H. Mikkola, K. Järvinen, B. Bessette, R. Lefebvre, R. Salami & M. Jelinek

SeptemberWideband LSF quantization by generalized Voronoi codes
S. Ragot, H. Lahdili & R. Lefebvre

JuneNear-ellipsoidal lattice quantization by generalized Voronoi shaping
S. Ragot, M. Xie & R. Lefebvre


2000

SeptemberRobust signal/noise discrimination for wideband speech and audio coding
M. Jelinek & F. Labonté

SeptemberBandwidth extension of narrowband and speech for low bit-rate wideband coding
J-M. Valin & R. Lefebvre

SeptemberCombined speech and audio coding by discrimination
L. Tancerel, S. Ragot, V.T. Ruoppila & R. Lefebvre

JuneStochastic-algebraic wideband LSF quantization
S. Ragot, R. Lefebvre, R. Salami & J-P. Adoul

MaySpeech/music discrimination for universal audio coding
L. Tancerel, S. Ragot & R. Lefebvre


1999

JuneA wideband speech and audio codec at 16/24/32 kbit/s using hybrid ACELP/TCX techniques
B. Bessette, R. Salami, C. Laflamme & R. Lefebvre

JuneLow complexity LSF quantization for wideband speech coding
S. Ragot, J-P. Adoul, R. Lefebvre & R. Salami

JuneDesign of test sequences for G.729 Annex E
S. Ragot, R. Salami & R. Lefebvre

MarchFrequency-domain spectral envelope estimation for low rate coding of speech
M. Jelinek & J-P. Adoul


1998

March Noise shaping: from the perceptual filter to frequency-domain companding
R. Lefebvre

January The ITU-T wideband speech coding standardization: the experience of University of Sherbrooke
R. Lefebvre


1997

SeptemberA wideband codec at 16/24 kbit/s with 10 ms frames
R. Salami, R. Lefebvre & C. Laflamme

SeptemberShaping coding noise with frequency-domain companding
R. Lefebvre & C. Laflamme

SeptemberLow bit rate speech coding using an improved HSX model
R. Matmti, M. Jelinek & J-P. Adoul

SeptemberHow close are we to the network quality 4 kbit/s codec?
R. Matmti, M. Jelinek & C. Laflamme

JuneDescription of GSM enhanced full rate speech codec
R. Salami, C. Laflamme, B. Bessette, J-P. Adoul, K. Jarvinen, J. Vainio, P. Kapanen, T. Honkanen & P. Haavisto

AprilLow bit rate speech coding for multimedia and wireless communications
R. Salami

AprilDescription of ITU-T Recommendation G.729 Annex A: reduced complexity 8 kbit/s CS-ACELP codec
R. Salami, C. Laflamme, B. Bessette & J-P. Adoul

AprilEnhanced full rate speech codec for IS-136 digital cellular system
T. Honkanen, J. Vainio, K. Jarvinen, P. Haavisto, R. Salami, C. Laflamme & J-P. Adoul

AprilGSM enhanced full rate speech codec
K. Jarvinen, J. Vainio, P. Kapanen, T. Honkanen, P. Haavisto, R. Salami, C. Laflamme & J-P. Adoul

AprilSpectral Amplitude Warping (SAW) for noise spectrum shaping in audio coding
R. Lefebvre & C. Laflamme


1996

MayHarmonic-stochastic excitation (HSX) speech coding below 4 kbit/s
C. Laflamme, R. Salami, R. Matmti & J-P. Adoul

MayEmbedded Algebraic Vector Quantizers (EAVQ) with application to wideband speech coding
M. Xie & J-P. Adoul


1995

NovemberITU-T 8-kbit/s standard speech codec for personal communication services
A. Kataoka, J-P. Adoul, P. Comescure & P. Kroon

NovemberA low-rate voice/video personal communicator scheme
L. Hanzo, J. Streit, R. Salami & W. Webb

SeptemberDescription of the proposed ITU-T 8 kb/s speech coding standard
R. Salami, C. Laflamme, J-P. Adoul, A. Kataoka, S. Hayashi, C. Lamblin, D. Massalou, S. Proust, P. Kroon & Y. Shoham

SeptemberModélisation de l'excitation pour codage de la parole à bas débit (< 4 Kb/s)
R. Matmti, M. Jelinek & J-P. Adoul

MayComparison of the wavelet decomposition and the Fourier transform in TCX encoding of wideband speech and audio
J-M. Leroux, R. Lefebvre & J-P. Adoul

MayFast and low-complexity LSF quantization using algebraic vector quantizer
X. Minjie & J-P. Adoul


1994

JuneHigh quality coding of wideband audio signals in the range 16 kbits/s to and 32 kbits/s
R. Lefebvre & J-P. Adoul

April8 kbit/s ACELP coding of speech with 10ms speech-frame: a candidate for CCITT standardization
R. Salami, C. Laflamme & J-P. Adoul

AprilHigh quality coding of wideband audio signals using Transform Coded eXcitation (TCX)
R. Lefebvre, R. Salami, C. Laflamme & J-P. Adoul


1993

OctoberACELP speech coding at 8 kbit/s with a 10 ms frame: a candidate for CCITT standardization
R. Salami, C. Laflamme & J-P. Adoul

April8kbps coding of speech with 6 ms frame-length
R. Lefebvre, R. Salami, C. Laflamme & J-P. Adoul

AprilLow-delay wideband speech coding using a new frequency domain approach
V.E. Sanchez & J-P. Adoul


1992

DecemberReal-time implementation of a 9.6 kbit/s ACELP wideband speech coder
R. Salami, C. Laflamme & J-P. Adoul

NovemberEvaluation of linear and non-linear spectral substraction methods for enhancing noisy speech
A. Le Floc'h, R. Salami, B. Mouy & J-P. Adoul

AugustLow-delay algebraic CELP coding of wideband speech
V. Sanchez, C. Laflamme, R. Salami & J-P. Adoul


1991

SeptemberLa spirale discrète: applications en quantification vectorielle et modulation
D. Berkani, A. Chékima & J-P. Adoul

SeptemberWideband ACELP speech coding at 9.6 kb/s
C. Laflamme, R. Salami & J-P. Adoul

MayDoes 16-QAM provide an alternative to a half-rate GSM speech codec?
W. Webb, L. Hanzo, R. Salami & R. Steele

May16 kbps wideband speech coding technique based on algebraic CELP
C. Laflamme, J-P. Adoul, R. Salami, S. Morissette & P. Mabilleau

MayHigh quality audio coding using analysis-by-synthesis technique
X. Lin, R. Salami & R. Steele


1990

AprilOn reducing computational complexity of codebook search in CELP coder through the use of algebraic codes
C. Laflamme, J-P. Adoul, H.Y. Su & S. Morissette


1989

SeptemberSpeaker and mother tongue independent analysis and recognition of some nasals, liquids and fricatives for integration in an automatic speech recognition system
J. Rouat, R.D. Mori & J-P. Adoul

SeptemberA real time 4.8 kbits/sec CELP on a single DSP chip (TMS320c25)
C. Laflamme, J-P. Adoul & S. Morissette

MayFast CELP coding based on the Barnes-Wall lattice in 16 dimensions
C. Laflamme, J-P. Adoul, H.Y. Su & S. Morissette


1988

JuneSpherical construction from lattices with efficient ML decoding
J-P. Adoul

MayConsonants analysis for automatic speaker independent speech recognition
J. Rouat, J-P. Adoul & R.D. Mori


1987

AprilFast CELP coding based on algebraic codes
J-P. Adoul, P. Mabilleau, M. Delprat & S. Morissette

AprilA comparison of some algebraic structures for CELP coding of speech
J-P. Adoul & C. Lamblin


1986

OctoberDesign algorithm for variable-length vector quantizers
J-P. Adoul & M. Delprat


1985

SeptemberImpact of vector quantization for connected speech recognition systems
J. Rouat & J-P. Adoul

MarchGeneralization of the multipulse coding for low bit rate coding purposes: the generalized decimation
J-P. Adoul, F. Didelot, P. Mabilleau & S. Morissette


1984

JuneVector quantization: Speech coding and speech recognition
J. Rouat, P. Mabilleau & J-P. Adoul

MarchA new concept for encoding speech amplitude time quantization
J. Soumagne, J-P. Adoul & S. Morissette

MarchBaseband speech coding at 2400 bps using "Spherical vector quantization"
J-P. Adoul, C. Lamblin & A. Leguyader


1982

May4800 bps RELP Vocoder using vector quantization for both filter and residual representations
J-P. Adoul & P. Mabilleau


1981

AprilMedium band speech coding using a dictionary of waveforms
P. Mabilleau & J-P. Adoul


1980

AprilSpectral distance measure applied to the optimum design of DPCM coders with L predictors
J-P. Adoul, J-L. Debray & D. Dalle


1979

AprilBit-rate-halving algorithm for PCM-encoded speech using a new bidimensional data compression scheme
J-P. Adoul, S. Morissette & M. Rudko


1978

NovemberBlock encoding and its applications to data compression of PCM speech
J-P. Adoul, C. Collin & D. Dalle


1977

MayOn line speech/data-modem identifier for telephone network
J-P. Adoul & D. Pradelles

MayParametric segmentation of speech into voiced-unvoiced-silence intervals
F. Daaboul & J-P. Adoul

JuneDigital TASI generalization with voiced/unvoiced discrimination for tripling T1 carrier capacity
J-P. Adoul & F. Daaboul


1974

NovemberSome statistical properties of PCM speech for compression applications
F. Daaboul & J-P. Adoul


1972

NovemberBit rate compression scheme for PCM speech
J-P. Adoul



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