Audio amplifier unit

Details Audio amplifier unit Audio amplifier unit

2006-08-22

2006-08-22

Mei, Xu (Department: 2644)

Electrical audio signal processing systems and devices

Binaural and stereophonic

Stereo speaker arrangement

C381S026000, C381S307000

Reexamination Certificate

active

07095865

ABSTRACT:
Face of a listener (user) is photographed by a CCD camera, and a face width and auricle size of the listener are detected on the basis of the picture of the listener's face. Head-related transfer functions, which are transfer functions of sounds propagated from virtual rear loudspeakers to both ears of the listener, are calculated, using the detected face width and auricle size as head shape data of the listener. Then, a filter process is performed by a DSP of a USB amplifier unit so as to attain characteristics of the head-related transfer functions, as a result of which sound image localization of the rear loudspeakers can be achieved via front loudspeakers.

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