Patent ID: 8489216
Filing Date: 2013-07-16
Classification: G10L,H04M

Abstract:
1. A sound mixing apparatus comprising plural mixing processing units provided according to sampling frequencies, wherein each processing unit of the plural mixing processing units comprises a central processing unit and a memory, which: adds up input sound signals of a same sampling frequency to generate a first added-up sound signal, converts the sampling frequency of the first added-up sound signal into a sampling frequency processable by the other mixing processing units, supplies sound signals that are converted to the sampling frequency, to the other mixing processing units, and adds up, to generate a second added-up sound signal, the first added-up sound signal generated by itself and the first added-up sound signals that are converted to a sampling frequency processable by itself and that are supplied from the other mixing processing units, wherein each processing unit of the plural mixing processing units generates, for each of the input sound signals having the same sampling frequency, a subtracted sound signal obtained by subtracting the input sound signal from the second added-up sound signal and encodes the subtracted sound signal.