Her spoken and whispered words are intercut with bits of ambient sound or sound effects recorded in binaural audio.

An early part circuit (803) generates an audio component by applying a binaural processing to an audio signal where the processing depends on the early part data.

A method and apparatus to balance the brain left side and the brain right side by using binaural beat is disclosed.

The disclosed method includes measuring the brain wave frequency spectrum of the individual, selecting the frequency exhibiting imbalanced behavior, and generating a binaural beat of that frequency.

Even when the listener moves, the acoustic signal apparatus maintains proper binaural reproduction without causing the imaginary source of sound to move owing to the use of the headphone device.

A three-dimensional acoustical audio system utilizes both spatial and temporal signal processing to maximize the depth, width, and perceived directionality of the acoustic field with respect to the binaural auditory system.

Even when the listener moves, the acoustic signal reproducing apparatus maintains proper binaural reproduction without causing the imaginary source of sound to move owing to the use of the headphone device.

In the acoustic signal apparatus, a reference signal sent from a reference source is sensed by a pair of signal detecting means placed on the head of a listener.

The sound pressure at the seat where a desired localization effect is not produced because of the loudspeaker arrangement is corrected so that the binaural amplitude level difference at the seat is the same as that at another seat.