Comparative Study of Effective Soundfield Reconstruction
Given that the goal of exact physical reconstruction of primary (concert hall) soundfields in secondary (domestic) environments is not practical, attention needs to be directed towards the optimization of an effective approximation. While the necessity for flat frequency response of all audio components is a widely accepted criterion for the correct reconstruction of the direct soundfield component, there is little argument as to how the indirect soundfield component should be handled, while at the same time, it is generally recognized that the indirect component is critical to the quality of the acoustic impression of a concert hall. This study examines how a quantitative measure of subjective preference for concert hall soundfields is preserved in transmission from primary to secondary environments under mono, stereo, and ambisonic formats, thereby providing an index of effective soundfield (direct and indirect) reconstruction.
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