Dolby Laboratories, Inc. provided earnings guidance for the second quarter, fourth quarter and full year of fiscal 2021. For the second quarter, total revenue is estimated to range from $570 million to $600 million. For the fourth quarter, the company's total revenue is estimated to range from $280 million to $310 million. Diluted earnings per share is anticipated to range from $0.25 to $0.40 on a GAAP basis. For the full year, total revenue is estimated to range from $1.28 billion to $1.31 billion.