C. Lamblin

Publications45
h-index12
Citations911
Highly Influential Citations45
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ITU-T Recommendation G.729 Annex B: a silence compression scheme for use with G.729 optimized for V.70 digital simultaneous voice and data applications
This article describes Annex B to ITU-T Recommendation G.729. Annex B defines a low-bit-rate silence compression scheme designed and optimized to work in conjunction with both the full version of… Expand
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Design and description of CS-ACELP: a toll quality 8 kb/s speech coder
TLDR
This paper describes the 8 kb/s speech coding algorithm G.729 which has been standardized by ITU-T. Expand
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ITU-T coders for wideband, superwideband, and fullband speech communication [Series Editorial]
TLDR
This section of the magazine presents recent algorithms developed by the ITU to provide high quality coding beyond traditional narrowband telephony. Expand
  • 19
  • 2
Algorithme de quantification vectorielle sphérique à partir du réseau de Gosset d’ordre 8
RésuméLes connaissances sur les réseaux réguliers de points trouvent leurs applications aussi bien dans la conception d’un quantificateur de formes d’ ondes que dans la sélection d’un jeu de signaux… Expand
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Description Of The Proposed ITU-T 8 Kb/S Speech Coding Standard
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Baseband speech coding at 2400 bps using "Spherical vector quantization"
TLDR
This paper concerns a new Quantization Scheme for efficient encoding of waveforms below or about one bit per sample. Expand
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  • 1
A 16, 24, 32 kbit/s wideband speech codec based on ATCELP
TLDR
A new codec structure called ATCELP, which is based on a combination of Subband-CELP and ATC techniques, has been proposed for the coding of wideband speech and music at 16, 24, and 32 kbit/s. Expand
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  • 1
  • PDF
Low-cost smart transcoding algorithm between ITU-T G.729 (8 kbit/s) and 3GPP NB-AMR (12.2 kbit/s)
TLDR
A novel and computationally efficient method is described here for the fixed codevectors. Expand
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  • 1
  • PDF
Fast CELP coding based on the Barnes-Wall lattice in 16 dimensions
TLDR
The authors present an algebraic code-excited linear prediction (CELP) speech coder where the innovation codebook comes from the first spherical code of the Barnes-Wall lattice in 16 dimensions. Expand
  • 24
A comparison of some algebraic structures for CELP coding of speech
  • J. Adoul, C. Lamblin
  • Mathematics, Computer Science
  • ICASSP '87. IEEE International Conference on…
  • 1 April 1987
TLDR
The paper discusses how binary error-correcting codes can be used to provide (+1/-1)-waveform codebooks that speed up search in CELP vocoders. Expand
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