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We present an analytical approach targeting the physical reproduction of sound fields by means of linear distributions of loudspeakers. Unlike with conventional analytical approaches like wave field synthesis, the employed loudspeakers are not required to be omnidirectional. The approach does not compensate for loudspeaker properties which deviate from certain assumptions but it rather allows for...
We present an analysis of the sound field of a moving sound source reconstructed from recordings of a virtual dual-radius open-sphere microphone array. As a consequence of the discrete property of such microphone distributions artifacts arise, most notably spatial aliasing and spatial bandwidth limitation artifacts. We show that these artifacts are much more pronounced for moving sound sources than...
Sound field reproduction methods like higher order Ambisonics which are based on orthogonal expansions always introduce a limitation of the spatial bandwidth of the secondary source driving function. This spatial truncation creates a sweet spot in the center of the secondary source distribution. This spot, or rather area, is ldquosweetrdquo both in terms of spatial aliasing artifacts as well as in...
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