Examinando por Materia "Presión sonora"

Mostrando 1 - 3 de 3
  • Publicación
    Acceso abierto
    Caso de estudio para la comparación de dos arreglos usando el sistema RCF HDL 20a, simulados mediante el software EASE FOCUS y las mediciones de presión sonora y direccionalidad aproximada capturadas en su implementación real
    (2016) Laino Guerra, Luis Felipe; Présiga Ríos, Sebastián; Buitrago Montañez, David Manuel
    Knowing the need that exists for sound engineers alive to deliver solutions to optimize time and resources when designing a system sound reinforcement, different tools that allow the possibility of estimating the behavior of a system in specific situations are used. A tool for this are prediction software and simulation, which are based on system behavior in a free, infinite and ideal field, omitting steps and calculations of great importance that can affect spreading response of each particular arrangement, so this work contains a case study to compare the results of simulations of sound pressure levels and approximate directionality of two arrays of speakers from RCF HCL 20 a system is performed, using the Ease Focus software against measurements specify the same parameters and the same system for real conditions. Grupo de Investigación: Modelamiento y Simulación Computacional. -- Línea de Investigación: Acústica y Procesamiento de Señales. -- Área: diseño de sistemas de sonido. -- Tema: diseño de sistemas de sonido.
  • Publicación
    Acceso abierto
    Diseño de una metodología alternativa que permita la caracterización de la radiación de una fuente electroacústica mediante el uso de una sonda P-U.
    (2017) Luján López, Luis Fernando; Estrada Duarte, Sergio Andrés; Molina Jaramillo, Alejandro
    Through the study of the standards for the determination of the sound intensity and the traditional measurement protocols to obtain the descriptors of radiation of electroacoustic sources an in situ methodology was designed that allows to estimate, for a Genelec 1032A loudspeaker, the vectorial field of intensity normal to measuring surface using the PU sensor and the Microflown´s Sound Power software. We sought to estimate a scalar and a vector unit, pressure and particle velocity respectively. Through these it was possible to calculate the measured intensity of the under study loudspeaker and thus obtain a representation of the vector field of intensity, a three-dimensional graph of its radiation. It is also understood that the measurements for pressure estimation must be performed under free field conditions, because this variable is affected by the reflections of the measurement environment due it is not of the vectorial type, for which it is not necessary to consider these contributions. An algorithm was developed for the processing of the data, so that the results could be projected on each one of the measurement positions by frequencies of third of octave. The reproducibility of the method was also evaluated by measurements in different acoustic environments. In a site with acoustic treatment the measurement distance is greater than in an enclosure without treatment due to the variation of the near field. In spite of this, it was possible to obtain satisfactory results in both places keeping the same configuration in the measurement elements.
  • Publicación
    Acceso abierto
    Estudio y pronóstico del impacto que puede causar el nivel de ruido vehicular en la calidad de vida de los habitantes del Municipio de Soacha, a partir del límite con el distrito, debido a la extensión de la troncal Norte-Quito-Sur (NQS) del sistema transmilenio
    (2006) Gómez Muñoz, José Martín; Gordillo Ardila, Javier Alejandro; Rodríguez Torres, Jefferson
    Un mapa estratégico de ruido permite evaluar globalmente la exposición al ruido en una zona sometida a distintas fuentes de ruido, así como realizar predicciones generales para dicha zona- La importancia de este proyecto radica en identificar situaciones acústicas que alteren de forma negativa la calidad de vida actual de las personas y el medio ambiente del área en estudio; así mismo, proponer alternativas de solución con el fin de prevenir los efectos negativos causados en la salud por el ruido del tráfico automotor.