A5074604307- Speech and Audio Processing
- Advanced Adaptive Filtering Techniques
- Hearing Loss and Rehabilitation
- Acoustic Wave Phenomena Research
- Pharmaceutical and Antibiotic Environmental Impacts
- Engineering Applied Research
- Blind Source Separation Techniques
- Environmental Toxicology and Ecotoxicology
- Music and Audio Processing
- Music Technology and Sound Studies
- Analytical Chemistry and Sensors
- Toxic Organic Pollutants Impact
- Environmental Chemistry and Analysis
- Groundwater and Isotope Geochemistry
- Video Surveillance and Tracking Methods
- Vehicle Noise and Vibration Control
- Structural Health Monitoring Techniques
- Animal Vocal Communication and Behavior
- Advanced oxidation water treatment
- Marine and coastal ecosystems
- Effects and risks of endocrine disrupting chemicals
- Advanced Photocatalysis Techniques
- Analytical chemistry methods development
- Control Systems and Identification
- Microbial Community Ecology and Physiology
Universitat Politècnica de València
2005-2021
Environnements et Paléoenvironnements Océaniques et Continentaux
2017-2019
Centre National de la Recherche Scientifique
2017
Université de Bordeaux
2017
Polytechnic University of Puerto Rico
2009
In the reproduction of sound using loudspeakers, listening room adds echoes not considered by system deteriorating rendered acoustic field. Wave field synthesis is a 3D audio system, which allows synthesizing realistic in wide area large number loudspeakers arrays. This paper proposes compensation approach based on multichannel inverse filter bank that corrects effects at selected points within area. Points are order to allow huge sweet spot disregarding quality room. As difference with...
The use of adaptive algorithms in multichannel equalization has become essential to compensate room effects real sound reproduction systems. Due the high complexity and number compensation filters that involve these multiple-input multiple-output (MIMO) systems, a compromise be taken provide good without increasing algorithm. impulse responses equalizer are usually long exhibit (or unknown) degree sparsity, which results least-mean-square (LMS) type showing slow convergence speed. Recently,...
Room equalization has become essential for sound reproduction systems to provide the listener with desired acoustical sensation. Recently, adaptive filters have been proposed as an effective tool in core of these systems. In this context, paper introduces different novel schemes based on combination idea: a versatile and flexible approach that permits obtaining combining capabilities several independent filters. way, we investigated advantages scheme called block-based which allows blockwise...
This paper provides an analysis of the steady-state behavior two biased adaptive algorithms recently introduced for listening room compensation, filtered-x normalized least mean squares (Fx-BNLMS) and improved proportionate NLMS (Fx-BIPNLMS). We give theoretical results that show can outperform unbiased ones in terms square error, especially low signal-to-noise ratio (SNR) scenarios. Moreover, impulse responses exhibiting high sparse-ness, achieve faster convergence than standard NLMS....
Gunshot detection in natural environments is crucial for the protection of endangered species. In this work, we present a novel dataset built from soundscape recording at five different locations Spanish Albufera National Park. We then carry out an experimental study to detect gunshots rest background sounds and noises labeled as "vbackground". For purpose, perform comprehensive experiments both data input modeling stages three efficient deep convolutional neural networks (DCNNs), obtaining...
The presence of nonlinearities as well reverberation effects severely degrades the audio quality in sound reproduction systems. In this context, many adaptive strategies have been developed to compensate for room effects. However, when nonlinear distortion becomes significant, equalization requires introduction suitable solutions tackle problem. Linearization loudspeakers has deeply investigated but its combination with systems may not be so straightforward, mainly present memory. paper,...
Audio quality in sound reproduction systems can be severely degraded due to system nonlinearities and reverberation effects. In this context, linearization of loudspeakers has been deeply investigated but its combination with room equalization is not straightforward, mainly when the present memory. paper, a method relying on convex two linear filters using filtered-x LMS (FXLMS) algorithm based virtual path concept preprocess audio signals presented for nonlinear compensation. It shown that...
Multichannel adaptive affine projection algorithms (multichannel AP) are currently under development for multichannel audio applications, mainly transaural reproduction. These present several advantages real time systems such as moderate computational cost, good stability, and adjustable convergence speed. However the basic version of AP algorithm needs to be optimized used on digital signal processors working time. Thus variants its fast (FAP) have been developed. Regarding cost...
En el campo de la reproduccion audio espacial, uno los sistemas mas prometedores hoy en dia es sistema Wave-Field Synthesis. Dicho proporciona con gran precision espacial un sonoro una amplia zona escucha. Sin embargo, sonido dentro sala, senal originada sufre efectos reverberacion producidos por las paredes, suelo y techo que reducen efecto buscado. este trabajo se presenta metodo compensacion salas basado inversion multicanal corrige sala puntos seleccionados del area Dichos han sido a fin...