Outputs (109)

Psychoacoustic analysis of contra-rotating propeller noise for unmanned aerial vehicles (2021)
Journal Article
Torija Martinez, A. J., Paruchuri, C., & Zhengguang, L. (2021). Psychoacoustic analysis of contra-rotating propeller noise for unmanned aerial vehicles. ˜The œJournal of the Acoustical Society of America (Online), 149(2), 835-846. https://doi.org/10.1121/10.0003432

Unmanned aerial vehicle (UAV) technologies are rapidly advancing due to the unlimited number of applications from parcel delivery to people transportation. As the UAV market expands, community noise impact will become a significant problem for public... Read More about Psychoacoustic analysis of contra-rotating propeller noise for unmanned aerial vehicles.

A psychoacoustic approach to building knowledge about human response to noise of Unmanned Aerial Vehicles (2021)
Journal Article

We are on the cusp of a revolution in the aviation sector, driven by the significant progress on electric power and battery technologies, and autonomous systems. Several industry leaders and governmental agencies are currently investigating the use o... Read More about A psychoacoustic approach to building knowledge about human response to noise of Unmanned Aerial Vehicles.

Effects of a hovering Unmanned Aerial Vehicle on urban soundscapes perception (2019)
Journal Article
Torija Martinez, A., Zhengguang, L., & Self, R. (2020). Effects of a hovering Unmanned Aerial Vehicle on urban soundscapes perception. Transportation Research Part D: Transport and Environment, 78, 102195. https://doi.org/10.1016/j.trd.2019.11.024

Several industry leaders and governmental agencies are currently investigating the use of Unmanned Aerial Vehicles (UAVs), or ‘drones’ as commonly known, for an ever-growing number of applications from blue light services to parcel delivery. For the... Read More about Effects of a hovering Unmanned Aerial Vehicle on urban soundscapes perception.

Supplementary material for 'Effects of a Hovering Unmanned Aerial Vehicle on Urban Soundscapes Perception' (2019)
Data

Audio stimuli used for this research. Audio samples for each location measured (i.e. L1 to L7) without (e.g. L1) and with a hovering drone (e.g. L1D).

Influence of sound reflection on aircraft directivity and lateral attenuation on the ground (2019)
Presentation / Conference
lateral attenuation on the ground. Presented at Internoise 2019, Noise Control for a Better Environment, Madrid, Spain

The calculation of the lateral attenuation correction for computing aircraft noise
footprints on the ground, as proposed by Doc29 and AIR5662, is based on
semiempirical methods not suitable for accounting for the particular
characteristics of some... Read More about Influence of sound reflection on aircraft directivity and lateral attenuation on the ground.

Psychoacoustic Characterisation of a Small Fixed-pitch Quadcopter (2019)
Presentation / Conference
Torija Martinez, A., Self, R., & Lawrence, J. (2019, June). Psychoacoustic Characterisation of a Small Fixed-pitch Quadcopter. Presented at Internoise 2019, Noise Control for a Better Environment, Madrid, Spain

In this study, a series of acoustic measurements were taken on a small fixed-pitch quadcopter, both in a controlled indoor acoustic environment and while flying outdoors. At controlled indoor conditions, audio signatures were recorded with the quadco... Read More about Psychoacoustic Characterisation of a Small Fixed-pitch Quadcopter.

Technological, economic and environmental prospects of all-electric aircraft (2018)
Journal Article

Ever since the Wright brothers’ first powered flight in 1903, commercial aircraft have relied on liquid hydrocarbon fuels. However,
the need for greenhouse gas emission reductions along with recent progress in battery technology for automobiles has... Read More about Technological, economic and environmental prospects of all-electric aircraft.

On the assessment of subjective response to tonal content of contemporary aircraft noise (2018)
Journal Article

The Effective Perceived Noise Level (EPNL) is the primary metric used for assessing subjective response to
aircraft noise. The EPNL comprises calculation of the Perceived Noise Level (in PNdB), and takes into
account flyover duration and the presen... Read More about On the assessment of subjective response to tonal content of contemporary aircraft noise.

Representative-in-class vehicles for fleet-level aviation noise analysis (2018)
Presentation / Conference
Torija Martinez, A., & Self, R. (2018, July). Representative-in-class vehicles for fleet-level aviation noise analysis. Presented at 25th International Congress on Sound and Vibration 2018, ICSV 2018: Hiroshima Calling, Hiroshima, Japan

Global air traffic demand is projected to nearly double by 2035 (7.2 billion passengers) compared to the 3.8 billion passengers in 2016. At such a growth rate, the aviation sector might cause an important detriment of the welfare of those living arou... Read More about Representative-in-class vehicles for fleet-level aviation noise analysis.

Preliminary noise assessment of aircraft with distributed electric propulsion (2018)
Presentation / Conference
Synodinos, A., Self, R., & Torija Martinez, A. (2018, June). Preliminary noise assessment of aircraft with distributed electric propulsion. Presented at 2018 AIAA/CEAS Aeroacoustics Conference, Atlanta, Georgia

Electric and hybrid-electric propulsion technologies in aviation are becoming more attractive
for aviation stakeholders not only due to the resulting reduction or elimination of the
dependency on oil, whose availability and price are uncertain, but... Read More about Preliminary noise assessment of aircraft with distributed electric propulsion.