Transient modeling with a Frequency-Transform Subspace Algorithm and "Transient + Sinusoidal" scheme

Abstract : We present an efficient modeling method for strong transient character audio signals. It is shown that the parametric non-stationary exponentially damped sinusoids (EDS) model permits good performance for time domain modeling of quasi-stationary signals or "weak" transients. However, a decay in modeling performance is observed when dealing with highly nonstationary signals as in a variety of musical sounds (various percussions, castanets, triangle,...). The idea is then to process the signal in a well chosen frequency-transform domain in which the transient temporal characteristics are better modeled by EDS. As a result, better representations of the transient signal class are obtained with no pre-echo artifacts (energy before the attack) and a very good signal onset dynamic reproduction. Finally, an original "transient+sinusoidal" modeling scheme is proposed.
Type de document :
Communication dans un congrès
IEEE Conference on Digital Signal Processing (DSP), Jul 2002, Santorini, Greece
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https://hal-supelec.archives-ouvertes.fr/hal-01251630
Contributeur : Remy Boyer <>
Soumis le : mercredi 6 janvier 2016 - 15:05:10
Dernière modification le : jeudi 5 avril 2018 - 12:30:05

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  • HAL Id : hal-01251630, version 1

Citation

Remy Boyer, Slim Essid. Transient modeling with a Frequency-Transform Subspace Algorithm and "Transient + Sinusoidal" scheme. IEEE Conference on Digital Signal Processing (DSP), Jul 2002, Santorini, Greece. 〈hal-01251630〉

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