Patent ID: 9253573
Filing Date: 2016-02-02
CPC Classification: H04R,H04S

Claim Text:
1. An acoustic signal processing apparatus, comprising: a first binauralization processing unit configured to generate a first binaural signal by superimposing a first head-related transfer function between a virtual sound source deviated from a front center plane at a predetermined listening position to a left side or a right side and a first ear on a far side from the virtual sound source at the listening position on an acoustic signal; a second binauralization processing unit configured to generate a second binaural signal by attenuating, among components of a signal obtained by superimposing a second head-related transfer function between the virtual sound source and a second ear on a near side to the virtual sound source at the listening position on the acoustic signal, components of a first band and a second band, the first band and the second band being a lowest band and a second lowest band, respectively, among bands in which a negative peak having a depth equal to or deeper than a predetermined depth appears on an amplitude of the first head-related transfer function at a frequency equal to or higher than a predetermined frequency; and a crosstalk compensation processing unit configured to perform a crosstalk compensation processing for canceling out, with respect to the first binaural signal and the second binaural signal, an acoustic transfer characteristic between a first speaker on a near side to the first ear between speakers arranged symmetrically with respect to the listening position and the first ear, an acoustic transfer characteristic between a second speaker on a near side to the second ear between the speakers arranged symmetrically with respect to the listening position and the second ear, a crosstalk from the first speaker to the second ear, and a crosstalk from the second speaker to the first ear.