Ongoing Electroacoustic Research & Whitepapers
Welcome to our new library of electroacoustic research, whitepapers, and articles. Here you’ll find in-depth resources on PAVA system design, speech intelligibility, and compliance with standards such as BS 5839-8, BS 7827, BS EN 50849, and BS EN IEC 60268-16. Each article is designed to share insights from both academic research and real-world consultancy, helping engineers, venue operators, and stakeholders understand the latest in sound system design and intelligibility assessment. Current research projects with findings to be shared in the near future includes:
- Overcoming Temporal Undersampling and Modulation Frequency Aliasing for Accurate STI in Reflective Spaces
- Perception of Impulse Response Noise during Auralisation
For access to full whitepapers, consultancy enquiries, or to discuss research collaborations, get in touch.
Publications
Hammond, R, “Accurate Analysis and Modelling of Human Impact on Sound Reinforcement and Reproduction in Large Spaces,” PhD Thesis, (2024).
R. Hammond and A. J. Hill, “On the effects of occupation on stadia sound system intelligibility,” J. Audio Eng. Soc., (TBC).
P. Mapp and R. Hammond, “The Effects of Spectators on the Speech Intelligibility Performance of Sound Systems in Stadia and Other Large Venues,” presented at the 147th Convention of the Audio Engineering Society, New York, USA (2019, Oct.). – cited in BS7827-2019.
R. Hammond, P. Mapp and A. J. Hill, “Modelling the Effects of Spectators on Speech Intelligibility in a Typical Soccer Stadium,” J. Acoust. Soc. of Amer., vol. 145, no. 3 (2019).
R. Hammond, P. Mapp and A. J. Hill, “Modelling the Effects of Spectator Distribution and Capacity on Speech Intelligibility in a Typical Soccer Stadium,” presented at the 146th Convention of the Audio Engineering Society, Dublin, Ireland (2019 Mar.).
R. Hammond, A. J. Hill and P. Mapp, “Discrepancies between Audience Modelling Methods in Performance Venues,” Proceedings of the Institute of Acoustics: Reproduced Sound, vol. 40, no. 4 (2018).
R. Hammond, A. J. Hill and P. Mapp, “On the Accuracy of Audience Implementations in Acoustic Computer Modelling,” presented at the 145th Convention of the Audio Engineering Society, New York, USA (2018 Oct.).
R. Hammond, “Three Restrictions of the Speech Transmission Index for Assessment of Speech Intelligibility of Public Address and Voice Alarm Systems,” MSc Thesis submitted to University of Derby (2017).
R. Hammond, P. Mapp and A. J. Hill, “Disagreement between STI and STIPA Measurements due to High Level, Discrete Reflections,” presented at the 142nd Convention of the Audio Engineering Society, Berlin, Germany (2017 May).
R. Hammond, P. Mapp and A. J. Hill, “The Influence of Discrete Arriving Reflections on Perceived Intelligibility and Speech Transmission Index Measurements,” presented at the 141st Convention of the Audio Engineering Society, Los Angeles, USA (2016 Oct.). – cited in BS 60268-16-2020.
R. Hammond, P. Mapp and A. J. Hill, “The Influence of Discrete Arriving Reflections on Perceived Intelligibility and Speech Transmission Index Measurements,” presented at the 140th Convention of the Audio Engineering Society, Paris, France (2016 Jun.).
R. Hammond, “The Influence of Discrete Arriving Reflections on Perceived Intelligibility and Speech Transmission Index Measurements,” BSc Dissertation submitted to University of Derby (2016).