Patent ID: 6772024
Filing Date: 2004-08-03
Classification: G06F,H04R

Abstract:
A method for use in a computer for adjusting a phase of a sound signal from front and rear sets of speaker units disposed at different positions relative to a listening position, comprising the steps of:inputting a predetermined sinusoidal reference sound signal to one set of speaker unit of said front and rear sets of speaker units; detecting a sound generated from said one speaker unit with a sound detector disposed at said listening position; detecting a phase difference between a sound signal output from said sound detector in response to said sound generated from the one speaker unit and said predetermined reference sound signal; repeating the above steps for each of the weaker units; and adjusting the phase of a sound signal to each set of speaker units for replaying with each other by inverting the signals to one set if a deviation of an average phase difference detected for one set of speaker units relative to the other set exceeds a preselected deviation.