Dolby Labs advanced after the maker of audio systems said total revenue in the fourth quarter rose to $243.8 million, compared to $227.8 million in the fourth quarter last year. The company also forecast 2012 profit of up to $3.02 a share, beating analyst estimates of $2.97. “We continued to see solid growth from our broadcast market in the fourth quarter,’’ said Dolby president and CEO Kevin Yeaman.
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