Method of processing and reproducing an audio stereo signal...

Details Method of processing and reproducing an audio stereo signal... Method of processing and reproducing an audio stereo signal...

2006-03-07

2006-03-07

Grier, Laura A. (Department: 2644)

Electrical audio signal processing systems and devices

Binaural and stereophonic

C381S303000, C381S019000, C381S061000

Reexamination Certificate

active

07010128

ABSTRACT:
A method of processing and reproducing an input audio stereo signal in an audio signal processing system comprises the steps of (1) splitting a side signal into a first and a second intermediate signal, where the first intermediate signal is equal to the side signal and the second intermediate signal is equal to the first intermediate signal phase shifted 180°, (2) attenuating the mid signal by a factor a which compensates for imperfections in the balance between the mid and side signals appearing in the audio reproduction stage, (3) adding the attenuated mid signal to both of the first and second intermediate signals, so as to form the output audio stereo signal, and (4) directing the output stereo signal to an audio stereo signal reproduction system, comprising a pair of loudspeaker units located in close proximity to each other. A suitable audio stereo signal reproduction system comprises a pair of loudspeaker units (2′, 2″) having a common baffle and each pair of loudspeaker units (2′, 2″) is positionable as a unitary assembly in close proximity to each other.

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