Eric Ballestero

Eric Ballestero
London South Bank University | LSBU · Department of The Built Environment

GDip, MSc, PhD candidate,

About

8
Publications
1,974
Reads
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17
Citations
Introduction
Eric Ballestero currently works at the Department of The Built Environment, London South Bank University. Eric does research in acoustic metadiffusers and ensemble conditions in orchestra pits.
Additional affiliations
October 2016 - present
London South Bank University
Position
  • Lecturer

Publications

Publications (8)
Article
Full-text available
Most simulations involving metamaterials often require complex physics to be solvedthrough refined meshing grids. However, it can prove challenging to simulate the effect of localphysical conditions created by said metamaterials into much wider computing sceneries due to theincreased meshing load. We thus present in this work a framework for simula...
Article
Full-text available
Most simulations involving metamaterials often require complex physics to be solved through refined meshing grids. However, it can prove challenging to simulate the effect of local physical conditions created by said metamaterials into much wider computing sceneries due to the increased meshing load. We thus present in this work a framework for sim...
Article
Full-text available
Sound diffusion refers to the ability of a surface to evenly scatter sound energy in both time and space. However, omni-directional radiation of sound, or perfect diffusion, can be impractical or difficult to reach under traditional means. This is due to the considerable size required, and the lack of tunability, of typical quarter-wavelength scatt...
Conference Paper
Full-text available
Sound diffusers are structured surfaces designed to control the scattering of acoustic waves, mainly used in room acoustics to improve sound quality. However, as they are mainly based on quarter-wavelength resonators, phase-grating diffusers result in heavy and thick structures. We present a novel approach to design deep-subwavelength sound diffuse...
Article
Full-text available
An acoustic metadiffuser is a subwavelength locally resonant surface relying on slow sound propagation. Its design consists of rigidly backed slotted panels, with each slit being loaded by an array of Helmholtz resonators. Due to the slow sound properties, the effective thickness of the panel can therefore be dramatically reduced when compared to t...
Conference Paper
Full-text available
Henry Wood Hall is a former church in central London repurposed as an orchestral rehearsal space. It's success in this role since the 1970s is testament to its suitability for this purpose. However, the trustees of the hall wanted a more flexible use of the space and in March 2018 instructed the Acoustics Group to develop, test and install a soluti...
Conference Paper
Full-text available
This paper aims to take advantage of the new cutting-edge virtual reality technologies -- such as head-mounted displays for virtual reality and ambisonics -- in order to recreate 3D immersive environments; both aural and visual. The work presented here is believed to encourage investigations into buildings yet to be, or those lost to civilisation....
Article
In 2016, the Acoustic Group was asked to assist the IMAX cinema in London with the aim of improving the emissive experience of listening to the streamed New York Metropolitan Opera. IMAX cinemas are designed and constructed to meet specific standards they were not built to reproduce an operatic experience. The IMAX cinema at London Waterloo was bui...

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Projects

Project (1)
Project
The project aims at the virtual recreation of an old Roman theatre built in 12 BCE by the means of visual and binaural virtual reality techniques. Using a combination of the Oculus Rift environment, along with Max/MSP signal processing techniques and CATT-Acoustics predictions, such virtual recreation would allow to produce an immersive – visual and aural – 3D environment