Estimated MIPS (per configuration)

mic count	PDM RX	output samp freq	MIPS
1	ISR	16000	14.146
1	ISR	32000	17.234
1	ISR	48000	21.305
1	THREAD	16000	12.930
1	THREAD	32000	15.954
1	THREAD	48000	19.961
2	ISR	16000	29.310
2	ISR	32000	34.621
2	ISR	48000	41.934
2	THREAD	16000	27.006
2	THREAD	32000	32.285
2	THREAD	48000	39.533