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Method and device for reproducing a stereophonic audiosignal

  • US 6,584,202 B1
  • Filed: 05/30/2000
  • Issued: 06/24/2003
  • Est. Priority Date: 09/09/1997
  • Status: Expired due to Fees
First Claim
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1. A method for reproducing a stereophonic audio signal in a space, the stereophonic audio signal having a left channel and a right channel, the method comprising the steps of:

  • arranging loudspeakers for reproducing acoustic signals at a plurality of positions in the space;

    supplying each of the loudspeakers with signals of the left channel and the right channel, the signals being individually delayed and amplitude-weighted for each of the loudspeakers; and

    adjusting a delay and an amplitude-weighting of audio signals reproduced via the loudspeakers so that wave fronts of acoustic signals radiated by the loudspeakers overlap to form at least one first resulting wave front for the left channel and a second resulting wave front for the right channel, the resulting wave fronts exhibiting a constant phase and amplitude along their profile, the resulting wave fronts intersecting in an expanded listening zone within the space, the listening zone including a plurality of listening positions distant from one another, a stereo aural impression resulting inside the listening zone.

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