Patent ID: 7853022
Filing Date: 2010-12-14
Classification: H04S

Abstract:
1. A system for converting between an N channel audio system and an M channel audio system, where M and N are integers and N is greater than M, comprising: a reference down-mixer receiving one or more of N channels of audio data and converting the one or more N channels of audio data to one or more M channels of audio data; a reference up-mixer receiving the one or more M channels of audio data and converting the one or more M channels of audio data to one or more N′ channels of audio data; a receiver receiving one or more corrected M channels of audio data and converting the one or more corrected M channels of audio data to one or more N′ channels of audio data; and a correction system receiving the one or more M channels of audio data, the one or more N channels of audio data, and the one or more N′ channels of audio data and correcting the one or more M channels of audio data based on differences between the one or more N channels of audio data and the one or more N′ channels of audio data.