Patent ID: 6658117
Filing Date: 2003-12-02
Classification: G10K,H04S

Abstract:
A sound field effect control apparatus for applying sound field effects to multichannel audio source signals that are input to said sound field effect control apparatus, the apparatus comprising:an initial reflected sound generating device that generates multichannel initial reflected sound signals from said multichannel audio source signals, wherein a plurality of said initial reflected sound signals are generated from distinct ones of said multichannel audio source signals, and wherein said multichannel audio source signals correspond to respective ones of said plurality of loudspeakers, and are each created based upon a first transmission function of a signal transmission path extending from said imaginary sound source at said predetermined position to ears of the listener, a second transmission function of a signal transmission path extending from said imaginary sound source at said predetermined position to a corresponding one of said plurality of loudspeakers, and a third transmission function of a signal transmission path extending from said corresponding one of said plurality of loudspeakers, and said initial reflected sound generating part creates said multichannel audio source signals to signal processing based upon a fourth transmission function forming a transmission function of a signal transmission path extending from said imaginary sound source at said predetermined position to the ears of the listener, and said second transmission function.