This paper provides a wide stereo algorithm which widens the stereo sound stage for a two-channel loudspeaker layout. The design method consists of a binaural synthesis, a crosstalk canceller and a direct filter. This creates multiple virtual loudspeakers and allows them to spread out in the front. Consequently, the proposed algorithm, which includes the widening of the sound stage and the timbre preservation, is designed in a form of a 2 by 2 filter matrix. The filter order is minimized for easy implementation while maintaining the performance.
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