Acoustic Field Simulation Analysis of Microphone Array Layout Based on the Theory of Beam Forming

Based on the beam forming technology,it utilizes the microphone array layout to attach information of the specific acoustic field,analyzes the visualization and identification of noise sources. It shows the various influences of different microphone array layout,demonstrates the process and analysis of different layout simulation with rational hypothesis among linear,rectangle,circle and semi- circle via Matlab. Considering the identification accuracy,the number of microphones required and graphic symmetry,the simulation result shows that the circle layout is highly effectivs.