Patent ID: 7492906
Filing Date: 2009-02-17
Classification: H04S

Abstract:
1. A speaker-characteristic compensation method for a speaker reproduction system having at least two speakers in a case, the method comprising, for input signals to the speakers, a process of reducing crosstalk that, within the ease, occurs between the speakers: a first direct processing step of processing an input signal to be a direct component to the other speaker; a first cross processing step of processing an input signal to the one speaker, thereby obtaining a cross component to the other speaker; a first addition step of adding respective signals obtained through the first direct processing step and the first cross processing step, thereby creating a driving signal for driving the other speaker; a second direct processing step of processing an input signal to be a direct component to the one speaker; a second cross processing step of processing an input signal to the other speaker, thereby obtaining a cross component to the one speaker; and a second addition step of adding respective signals obtained through the second direct processing step and the second cross processing step, thereby creating a driving signal for driving the one speaker; wherein the first direct processing step is based on a transfer characteristic through which a driving signal for driving the one speaker is transformed by at least an amplifier characteristic or a speaker characteristic and emitted from the one speaker, the first cross processing step is based on a transfer characteristic through which a driving signal for driving the one speaker is transformed by at least inner case acoustic coupling and emitted from the other speaker, the second direct processing step is based on a transfer characteristic through which a driving signal for driving the other speaker is transformed by at least an amplifier characteristic or a speaker characteristic and emitted from the other speaker, and the second cross processing step is based on a transfer characteristic through which a driving signal for driving the other speaker is transformed by at least inner case acoustic coupling and emitted from the one speaker.