An audio stereo processing method, device and system

An audio stereo processing method, device and system

  • CN 1,839,663 A
  • Filed: 07/16/2004
  • Published: 09/27/2006
  • Est. Priority Date: 07/21/2003
  • Status: Active Grant
First Claim
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1. the method for an input audio stereo signal that is used to handle comprise two input signals is used for the stereophonic signal after comprising the audio stereo playback system reproduction processes of at least one pair of speaker element, and described method comprises step:

  • A) provide a central input signal (M) and a side input signal (S),B) produce a left side output signal, be used to be sent to the left speaker of described loud speaker centering, this left side output signal is or is equal to described central input signal (M) and described side input signal (S) sum,C) produce a right side output signal, be used to be sent to the right speaker of described loud speaker centering, this right side output signal is or is equal to described side signal (S) sum after 180 °

    of described central input signal (M) and the phase shifts,The feature of described method also is step;

    -at step b) and c) in produce before described left side and the right side output signal or simultaneously, at least a portion of described side input signal (S) in the frequency range 4kHz-9kHz or described central input signal (M) with respect at least 45 °

    of another signal phase shifts, but is no more than 135 °

    .

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