Patent ID: 9136962
Filing Date: 2015-09-15
Classification: H04H,H04R

Abstract:
1. A frequency characteristics control device of a mixer that mixes a first audio signal and a second audio signal inputted to the mixer, the frequency characteristics control device comprising: a characteristics detection section that detects a first frequency characteristic of the first audio signal and a second frequency characteristic of the second audio signal; a removal band detection section that detects, based on the first frequency characteristic and the second frequency characteristic, a removal band in which a level of the first audio signal is higher than a level of the second audio signal; a filtering process section that performs a filtering process on the second audio signal inputted to the mixer so as to attenuate a component of the second audio signal in the removal band while any frequency band of the first audio signal is not attenuated relative to the second audio signal by the filtering process section; an output section that mixes with each other the first audio signal inputted to the mixer and the second audio signal on which the filtering process section has performed the filtering process, and that outputs a mixed audio signal of the first audio signal and the second audio signal; and a specifying section that allows a user to specify a channel among a plurality of channels of said mixer such that the first audio signal is a signal of said specified channel and the second audio signal is a signal of another channel of the mixer, so as to emphasize the first audio signal relative to the second audio signal.