Patent 10152961 was granted and assigned to Sony on December, 2018 by the United States Patent and Trademark Office.
Provided is a signal processing device including a signal analyzing unit configured to analyze a second audio signal based on a first audio signal which is input and a sound collected through a microphone, a cancellation processing unit configured to generate a cancellation signal for canceling the second audio signal, and a parameter generating unit configured to generate a control parameter used in the cancellation processing unit based on a result of analysis performed by the signal analyzing unit.