Design Considerations When Accelerating an FPGA-Based Digital Microphone Array for Sound-Source Localization

Table 8

Maximum when combining strategies. The maximum number of beamformers is obtained based on the available resources and the resource consumption of each beamformer (Table 4). The maximum is reported by the Vivado 2016.4 tool after placement and routing.

	Continuous time multiplexing				Parallel continuous time multiplexing
	Inner 4 MICs	Inner 12 MICs	Inner 28 MICs	All 52 MICs	Inner 4 MICs	Inner 12 MICs	Inner 28 MICs	All 52 MICs
	—	—	—	—	55	23	10	6
	95.62 MHz	93.27 MHz	91.97 MHz	87.91 MHz	95.62 MHz	93.27 MHz	91.97 MHz	87.91 MHz
	3059	2984	2943	2813	168292	68650	29430	16879