Cirrus Logic (CRUS) has had a couple of tough years. Earnings and sales declined in fiscal 2014. This week, the maker of a vast array of audio chips reported that earnings dipped again during the fiscal year ended in March. But during that year, Cirrus also turned a corner. Q4 earnings soared 61% vs. year-ago levels. That was 40% higher than analyst consensus views and up from a 9% gain in Q3 — its first profit increase in five quarters.