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Pré-Publication, Document De Travail Année : 2010

Calculation of an entropy-constrained quantizer for exponentially damped sinudoids parameters

Résumé

The Exponentially Damped Sinusoids (EDS) model can efficiently represent real-world audio signals. In the context of low bit rate parametric audio coding, the EDS model could bring a significant improvement over classical sinusoidal models. The inclusion of an additional damping parameter calls for a specific quantization scheme. In this report, we describe a new joint-scalar quantization scheme for EDS parameters in high resolution hypothesis, which is much easier to implement than a vector quantization scheme. A performance evaluation of this quantizer in comparison with a 3-dimensional vector quantizer is proposed in a paper submitted to IEEE Signal Processing Letters named "Entropy-Constrained Quantization of Exponentially Damped Sinusoids Parameters".
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Dates et versions

hal-00490864 , version 1 (09-06-2010)

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  • HAL Id : hal-00490864 , version 1

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Olivier Derrien, Roland Badeau, Gael Richard. Calculation of an entropy-constrained quantizer for exponentially damped sinudoids parameters. 2010. ⟨hal-00490864⟩
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