Patent ID: 8121297
Filing Date: 2012-02-21
Classification: H04S

Abstract:
1. A signal processing device, comprising: a filter that (is set to frequency characteristics in which—cancelled) smoothes a first dip existing in an intermediate and high frequency range of frequency characteristics of a virtual characteristic applying filter (is smoothed—cancelled), wherein the virtual characteristic applying filter applies transfer characteristics of a space transfer path to a sound signal, and the space transfer path extends from a virtually set orientation of a sound image to an ear of a listener, and wherein smoothing of the first dip lessens a first sound image orientation effect applied by the virtual characteristic applying filter; an equalizer that forms a second dip by cutting a part of the intermediate and high frequency range, wherein formation of the second dip applies a second sound image orientation effect; and an adjusting unit that adjusts at least a central frequency of the second dip formed by the equalizer so that the listener can adjust the second sound image orientation effect, wherein an input signal is passed through the filter and the equalizer.