Design Exploration and Performance Strategies towards Power-Efficient FPGA-Based Architectures for Sound Source Localization

Table 1

Architecture’s parameters used for the analysed reconfigurable acoustic beamforming architectures, the range under evaluation, and their trade-offs.

Parameter	Range	Trade-offs
Number of active microphones ()	4, 12, 28, 52	Resources, frequency response, directivity, and power
Number of steered orientations ()	4, 8, 16, 32, 64	Execution time, performance, frequency response, and directivity
Number of acoustic samples at the power stage ()	64	Power, execution time, and performance