Author(s)

R. Aylward

Abstract

This study concerns the mathematical modelling of speech related acoustical hearing discomforts in medium to large environments (e.g. auditoriums and concert halls). Discomforts arise from both phase distortion (echo) and perceived frequency transformations (Comb filters) Borwickfl], Ando[3]. These distortions are caused by the physical constraints imposed on sound transmission within large environments. Deconvolution was applied to the measured signals to recover the original sound from the environmentally distorted sound, thus separating it from the transformation system function (Room impulse response). Several samples were used for different positions within the hall. The different methods investigated for the deconvolution process were cross-correlation, cepstmm and adaptive filter techniques, Oppcnlicim[2]. Upon se

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