Results 1 to 10 of about 2,037 (120)

Dataset for polyphonic sound event detection tasks in urban soundscapes: The synthetic polyphonic ambient sound source (SPASS) dataset

open access: yesData in Brief, 2023
This paper presents the Synthetic Polyphonic Ambient Sound Source (SPASS) dataset, a publicly available synthetic polyphonic audio dataset. SPASS was designed to train deep neural networks effectively for polyphonic sound event detection (PSED) in urban ...
Rhoddy Viveros-Muñoz   +8 more
doaj   +1 more source

The Relevance of the Low-Frequency Sound Insulation of Window Elements of Façades on the Perception of Urban-Type Sounds

open access: yesBuildings, 2023
The sound insulation of the façade and its elements is a very important characteristic, as it largely determines the degree of sound protection of the building’s interior from external noise sources.
Daniel de la Prida   +5 more
doaj   +1 more source

A Digital Signal Processor Based Acoustic Sensor for Outdoor Noise Monitoring in Smart Cities

open access: yesSensors, 2020
Presently, large cities have significant problems with noise pollution due to human activity. Transportation, economic activities, and leisure activities have an important impact on noise pollution.
Juan Manuel López   +5 more
doaj   +1 more source

Optimización de plataforma con movimiento rotacional horizontal controlable para un sistema de medición de funciones de transferencia de cabeza

open access: yesTecnología y Ciencia, 2021
Para simular computacionalmente fuentes sonoras distribuidas espacialmente y lograr sonido tridimensional, se utilizan las funciones de transferencia de cabeza (HRTFs) como filtros.
Martín Mendez   +5 more
doaj   +1 more source

Tunable acoustic hooks from Janus cylinder

open access: yesResults in Physics, 2021
In this paper we present a new way to obtain tunable acoustic hooks. The breaking of the symmetry of the material composition is used for the generation of acoustic hooks from Janus cylinders.
Sergio Castiñeira-Ibañez   +3 more
doaj   +1 more source

Rinometria acústica, rinomanometria computadorizada e espirometria de doentes asmáticos com sintomas de rinite pré e pós-curso de corticóide oral

open access: yesRevista Portuguesa de Pneumologia, 2005
AbstractIntroduction: Asthma and rhinitis frequently coexist in the same patient. It may exist a specific condition witch affects the general respiratory activity and also able to produce symptoms into upper and/ or lower airways.Purpose: To analyze the alteration and functional burst of upper and lower airways before and after oral corticoid.Methods ...
Dorivaldo Duarte   +1 more
openaire   +2 more sources

Memoria y enfoque enactivo: análisis sobre el rol del cuerpo y las interacciones sociales

open access: yesRevista de Psicología, 2023
El enactivismo es una rama de las perspectivas cognitivas corporizadas que sostiene que la cognición emerge del acoplamiento que se da entre el organismo y su entorno.
Verónika Diaz Abrahan   +2 more
doaj   +1 more source

Integrated Photogrammetric-Acoustic Technique for Qualitative Analysis of the Performance of Acoustic Screens in Sandy Soils

open access: yesSensors, 2019
In this work, we present an integrated photogrammetric-acoustic technique that, together with the construction of a scaled wind tunnel, allows us to experimentally analyze the permeability behavior of a new type of acoustic screen based on a material ...
José M. Bravo   +4 more
doaj   +1 more source

A tunable acoustic barrier based on periodic arrays of subwavelength slits

open access: yesAIP Advances, 2015
The most usual method to reduce undesirable enviromental noise levels during its transmission is the use of acoustic barriers. A novel type of acoustic barrier based on sound transmission through subwavelength slits is presented.
Constanza Rubio   +4 more
doaj   +1 more source

Cylindrical 3D printed configurable ultrasonic lens for subwavelength focusing enhancement

open access: yesScientific Reports, 2020
In this study, we report the characteristics of acoustic jets obtained through a mesoscale (radius less than 5 wavelengths) ABS cylinder made with a 3D printer.
Sergio Castiñeira-Ibáñez   +5 more
doaj   +1 more source

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