Auralisation of stage acoustics for large ensembles

Computational room acoustics models are frequently used to derive room acoustical parameters, and also for auralisation of sound from stage to audience area of auditoria. Auralisation of sound on stage is much less common. This paper considers how auralisation can be implemented for a musician within a large ensemble. Using a computer model of an auditorium, impulse responses are derived from various source positions on the stage to the auralised position for the musician (also on the stage). For the playback, anechoic recordings of individual instruments within a small or large ensemble are convolved with the appropriatiately synchronised and spatialised impulse responses. The roomreflected sound for the musician’s own instrument or voice is auralised separately using a real-time convolution system previously developed for auralising the sound of one’s own voice in rooms. This paper describes the integration of these processes, which are illustrated using a case study.