Patent ID: 8509460
Filing Date: 2013-08-13
Classification: G10L,H04L,H04M

Abstract:
1. A sound mixing apparatus comprising: plural mixing processing units provided according to sampling frequencies; and a speaker detector that selects at least one speaker sound signal including a sound utterance of a speaker from among plural sound signals inputted to the plural mixing processing units, wherein each processing unit of the plural mixing processing units adds up speaker sound signals selected by the speaker detector from among sound signals having a same sampling frequency inputted to the processing unit 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 the first added-up 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 of the plural mixing processing units generates, for each of the speaker sound signals selected by the speaker detector, a subtracted sound signal obtained by subtracting the speaker sound signal from the second added-up sound signal and encodes the subtracted sound signal.