Patent ID: 7010128
Filing Date: 2006-03-07
Classification: H04R,H04S

Abstract:
1. A method of processing and reproducing an input audio stereo signal in an audio signal processing system so as to form a processed output audio stereo signal, the input audio stereo signal consisting of at least a part of the frequency range of a mid signal (M) and a side signal (S), the output audio stereo signal being intended for reproduction by a pair of loudspeaker units located in close proximity to each other, comprising the steps of: splitting the side signal (S) into a first (S′) and a second (S″) intermediate signal, where said first intermediate signal (S′) is equal to the side signal (S) and said second intermediate signal (S″) is equal to said first intermediate signal(S′) phase shifted 180°, attenuating the mid signal (M) by a factor a which compensates for imperfections in the balance between the mid (M) and side signals (S) appearing in the audio reproduction stage, and adding the attenuated mid signal to both of said first and second intermediate signals (S′, S″), so as to form said output audio stereo signal.