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Laird, Iain; Chapman, Paul; Murphy, Damian (2012)
Languages: English
Types: Unknown
A Virtual Performance System (VPS) is a real-time 3D auralisation system which enables a musician to\ud play in simulated acoustic environments. Such systems have been used to investigate the effect of stage acoustics on the performance technique of musicians. This article describes how a VPS can be calibrated using omnidirectional, energy-based quantities. It goes on to describe how the spatialisation accuracy of specific reflections can be assessed using time-frequency analysis. The energy-based calibration has been shown to produce a reasonably accurate simulation of a test space in terms of known acoustic metrics such as T30. However, the time-frequency analysis has shown significant differences in the spatialisation of particular early reflections in the virtual version of a test space.
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

    • [1] K. Ueno, K, Kosuke, K Lawai (2007) Musicians' Adjustment of Performance to Room Acoustics Part 1: Experimental Performance and Interview in Simulated Soundfield. 19th International Congress on Acoustics, Madrid
    • [2] A. C. Gade (1989) Investigations of Musicians' Room Acoustic Conditions in Concert Halls. Part 1: Methods and Laboratory Experiments. Acustica, vol. 69, 193-203
    • [3] J. Brereton, D. Murphy, D. Howard (2012) A Loudspeaker-Based Room Acoustics Simulation for Real-Time Musical Performance. Proc. Of the 25th UK AES Conference in assoc. with the 4th International Symposium on Ambisonics and Spherical Acoustics
    • [4] International Organisation of Standardisation (ISO) (2009) BS EN ISO 3382-1:2009 'Acoustics - Measurement of room acoustic parameters'
    • [5] Gade, A. C. (2010) 'Acoustics for Symphony Orchestras; status after three decades of experimental research' Proceedings of the International Symposium on Room Acoustics, August 2010, Melbourne Australia.
    • [6] P. Fellgett, Ambisonics. Part One: General System Description, Studio Sound, August 1975, 1:20-22,40
    • [7] Reaper DAW, http://www.reaper.fm/, accessed Jan 2012
    • [8] Gerzonic Ambisonic Decoders, http://www.gerzonic.net/, accessed Jan 2012
    • [9] I. Laird, D. Murphy, P. Chapman, S. Jouan (2011) Development of a Virtual Performance Studio with Application of Virtual Acoustic Recording Methods. Proc. of the 130th AES Convention, London, UK
    • [10] A. Farina (2000) Simultaneous Measurement of Impulse Response and Distortion with a Swept-Sine Technique. 108th AES Convention. Paris, France
    • [11] J. Merimaa and V.Pulkki (2004) Spatial Impulse Response Rendering. Proc. of the 7th International Conference on Digital Audio Effects, Naples, Italy, October 2004.
  • No related research data.
  • Discovered through pilot similarity algorithms. Send us your feedback.

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