Linear Differential Microphone Arrays
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Differentiable Optimization of Linear Differential Microphone Arrays: A Joint Geometry and Filter Design Framework
arXiv:2412.05123v2 Announce Type: replace Abstract: This paper presents a differentiable optimization framework for the design of constrained Linear Differential Microphone Arrays (LDMAs). The proposed method leverages a non-uniform delay-and-sum beamformer as a light-weight base system model, proving its ability to achieve the optimal beampattern of LDMAs by jointly optimizing microphone positions and filter weights. The formulation enables the optimized design of a filter with a...