Diseño y construcción de un sistema automatizado rotativo biaxial para la medición de respuestas al impulso binaurales (BRIRs)
The perceptual information used for orientation in our auditory environment is encoded by means of acoustic pressure in our ears. Therefore, real or artificial sound fields can be simulated by means of binaural impulse responses (BIRs). The binaural technology allows the capture of sound through...
| Autor Principal: | Henao Paternina, Esteban |
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| Otros Autores: | Mejía Martínez, Sergio |
| Formato: | info:eu-repo/semantics/bachelorThesis |
| Idioma: | spa |
| Publicado: |
Ingenierias
2018
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| Materias: | |
| Acceso en línea: |
E. Henao Paternina y S. Mejía Martínez, “Diseño y Construcción de un Sistema Automatizado Rotativo Biaxial para la Medición de Respuestas al Impulso Binaurales”, Trabajo de grado Ingeniería de Sonido, Universidad de San Buenaventura Medellín, Facultad de Ingenierías, 2018 |
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| Sumario: |
The perceptual information used for orientation in our auditory environment is encoded
by means of acoustic pressure in our ears. Therefore, real or artificial sound fields can
be simulated by means of binaural impulse responses (BIRs). The binaural technology
allows the capture of sound through two microphones located in the auditory ducts of a
mannequin head, recreating human listening and providing with this spatial information.
However, the dummy head is a static system with limited possibilities to emulate the
movements of the head.
Immersive audio systems by means of headphones generally require the measurement of a
large set of BIRs, especially for systems that enable the rotation of the sound field, where
impulse responses must be measured in various orientations. The accuracy and stability
of the location of the source, as well as the depth of the immersion during an auralization,
can be increased by said set and thus take into account the movements of the listener in
the simulated environment.
Consequently, it is proposed to develop a biaxial rotation system through the design and
construction of a functional structure that allows the azimuthal and elevation movement
of a dummy head. The proposed system consists of an electro-mechanical device which
is controlled in an automated way by means of an algorithm generated in the MATLAB
programming software. This algorithm, in addition to controlling the movements of the
device, is responsible for establishing the communication protocols with the electronic
components and the processing of the BIRs.
Finally, the limitations of this system are discussed and improvements are proposed for a
later version of the prototype. |
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